Conurbation
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A conurbation is a region comprising a number of metropolises, cities, large towns, and other urban areas which through
population growth Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to ...
and physical expansion, have merged to form one continuous urban or industrially developed area. In most cases, a conurbation is a
polycentric Polycentric is an English adjective, meaning "having more than one center," derived from the Greek words ''polús'' ("many") and ''kentrikós'' ("center"). Polycentricism (or polycentricity) is the abstract noun formed from polycentric. They may r ...
urbanised area in which transportation has developed to link areas. They create a single urban labour market or travel to work area. Patrick Geddes coined the term in his book ''Cities In Evolution'' (1915). He drew attention to the ability of the new technology at the time of electric power and motorised transport to allow cities to spread and agglomerate together, and gave as examples " Midlandton" in England, the
Ruhr The Ruhr ( ; german: Ruhrgebiet , also ''Ruhrpott'' ), also referred to as the Ruhr area, sometimes Ruhr district, Ruhr region, or Ruhr valley, is a polycentric urban area in North Rhine-Westphalia, Germany. With a population density of 2,800/km ...
in Germany, Randstad in the Netherlands, and the Northeastern Seaboard in the United States. The term as described is used in Britain whereas in the United States, each polycentric "
metropolitan area A metropolitan area or metro is a region that consists of a densely populated urban agglomeration and its surrounding territories sharing industries, commercial areas, transport network, infrastructures and housing. A metro area usually com ...
" may have its own common designation such as San Francisco Bay Area or the
Dallas–Fort Worth metroplex The Dallas–Fort Worth metroplex, officially designated Dallas–Fort Worth–Arlington by the U.S. Office of Management and Budget, is a conurbated metropolitan statistical area in the U.S. state of Texas encompassing 11 counties and anchore ...
. Internationally the term " urban agglomeration" is often used to convey a similar meaning to "conurbation". A conurbation should also be contrasted with a megalopolis. In a megalopolis the urban areas are close but not physically contiguous, and the merging of labour markets has not yet developed.


Africa


Mauritius

The cities and towns of Port Louis, Beau Bassin-Rose Hill, Curepipe, Quatre Bornes, Vacoas-Phoenix and other urbanized villages form a large and central conurbation on the island of Mauritius. A large part of this conurbation is located in the district of Plaines Wilhems. The network of urban areas has a total population of 606,650 (49% of the island's population) as of 2011.


Morocco

Rabat-Salé-Kénitra


Nigeria

Lagos is a conurbation formed through the merged development of the initial Lagos city area with other cities and towns including Ikeja and
Ojo Ojo may refer to: * Ōjō, a Japanese Buddhist term referring to rebirth in the Pure Land of Amitabha Buddha *Ojo, a curious red bear cub who has a wild imagination and is good friends with Treelo on '' Bear in the Big Blue House'' * ''Ojo'' (co ...
. Also various suburban communities such as Agege, Alimosho, Ifako-Ijaiye, Kosofe, Mushin, Oshodi and Shomolu are included in the area.


South Africa

Johannesburg, Ekurhuleni (East Rand), and Tshwane (greater Pretoria) merged to form a region that has a population of 14.6 million.


Oceania


Australia


Albury-Wodonga

Albury and Wodonga are cross border cities which are geographically separated by the Murray River. Albury on the north of the river is part of New South Wales, while Wodonga on the south bank is in Victoria. In the early 1970s Albury-Wodonga was selected as the primary focus of the Whitlam Government's scheme to arrest the uncontrolled growth of Australia's large metropolitan areas (in particular
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
and Melbourne) by encouraging
decentralisation Decentralization or decentralisation is the process by which the activities of an organization, particularly those regarding planning and decision making, are distributed or delegated away from a central, authoritative location or group. Conce ...
. The two cities combine to form an urban area with an estimated population of 93,603. Estimated resident population, 30 June 2018.


Canberra-Queanbeyan

A cross border built-up area comprising the nation's capital
Canberra Canberra ( ) is the capital city of Australia. Founded following the federation of the colonies of Australia as the seat of government for the new nation, it is Australia's largest inland city and the eighth-largest city overall. The ci ...
in the Australian Capital Territory and the city of
Queanbeyan Queanbeyan ( ) is a city in the south-eastern region of New South Wales, Australia, located adjacent to the Australian Capital Territory in the Southern Tablelands region. Located on the Queanbeyan River, the city is the council seat of the ...
in New South Wales, which is considered by the Australian Bureau of Statistics to have a single labour market.


Newcastle, Sydney, Wollongong

This conurbation in New South Wales extends from Newcastle and surrounding satellite towns of the Hunter Valley through the Central Coast. It is broken up only by waterways and national parks, through to the greater
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
metropolitan area and the Wollongong urban area. The total length from the top to the bottom of the conurbation is around 270km with a population of just over 6 million people.Australia’s tale of two nations needs a united front
by Bernard Salt from The Australian. Retrieved 28 November 2020
Transport is linked throughout the region by motorways, the M1, M2, M4, M5, M7, M8,
M15 M15 or M-15 may refer to: In science * Messier 15 (M15), a globular cluster in the constellation Pegasus In firearms and military equipment * M15 mine, a United States anti-tank mine * M15 rifle, a variant of the M14, a United States military rif ...
and M31. An extensive public transport network allows for commuting for work or services across and between multiple distinct but joined centres, with
NSW TrainLink NSW TrainLink is a train and coach operator in Australia, providing services throughout New South Wales and the Australian Capital Territory, along with limited interstate services into Victoria, Queensland and South Australia. Its primary interc ...
's intercity network serving
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
, the Central Coast, Newcastle, the Hunter Valley, and the Illawarra. Plans for making Wollongong, Sydney and Newcastle a single city have been around since the 1960s. A report titled ''The Committee for Sydney'' contains a chapter called ''The Sandstone Mega-Region, Uniting Newcastle, the Central Coast, Sydney, Wollongong'' (since all of the cities are in a geological region called the
Sydney Basin The Sydney Basin is an interim Australian bioregion and is both a structural entity and a depositional area, now preserved on the east coast of New South Wales, Australia and with some of its eastern side now subsided beneath the Tasman Sea. ...
, which is made up of
Sydney sandstone Sydney sandstone is the common name for Sydney Basin Hawkesbury Sandstone, one variety of which is historically known as Yellowblock, and also as "yellow gold" a sedimentary rock named after the Hawkesbury River north of Sydney, where thi ...
). The report says that the link would benefit the “six cities” within the region, which are: Illawarra and Wollongong, the Western City (
Greater Western Sydney Greater Western Sydney (GWS) is a large region of the metropolitan area of Greater Sydney, New South Wales (NSW), Australia that generally embraces the north-west, south-west, central-west, and far western sub-regions within Sydney's metropoli ...
), the Central City ( Parramatta), the Eastern City (
Sydney central business district The Sydney central business district (CBD) is the historical and main Central business district, commercial centre of Sydney. The CBD is Sydney's city centre, or Sydney City, and the two terms are used interchangeably. Colloquially, the CBD or c ...
, eastern suburbs, and Northern Sydney), the Central Coast ( Gosford) and Newcastle (including Lake Macquarie).


Greater Perth

The Perth Metropolitan Region, City of Mandurah, and Pinjarra form a continuous urban area in Western Australia more than 130 km (80 miles) long, on a north–south axis. It is sometimes known as " Greater Perth" and has a population of more than 2.05 million (2015). Introduction of the Mandurah line in 2007 made it possible for commuters to travel the 70 km (43.5 mi) from
Mandurah station Mandurah Station is the terminus of the Mandurah railway line and a bus station on the Transperth network, serving the satellite city of Mandurah, Western Australia. History The bus station opened prior to the railway station, on 17 Sep ...
to Perth station in 51 minutes.


South East Queensland

A built-up area 200 kilometres long which is centred on
Brisbane Brisbane ( ) is the capital and most populous city of the states and territories of Australia, Australian state of Queensland, and the list of cities in Australia by population, third-most populous city in Australia and Oceania, with a populati ...
, includes the
local government area A local government area (LGA) is an administrative division of a country that a local government is responsible for. The size of an LGA varies by country but it is generally a subdivision of a State (administrative division), state, province, divi ...
s (LGAs) of Gold Coast, Ipswich, Logan City, Moreton Bay, Redland City,
Sunshine Coast Sunshine Coast may refer to: * Sunshine Coast, Queensland, Australia **Sunshine Coast Region, a local government area of Queensland named after the region **Sunshine Coast Stadium * Sunshine Coast (British Columbia), geographic subregion of the Br ...
,
Noosa Shire The Shire of Noosa is a local government area about north of Brisbane in the Sunshine Coast district of South East Queensland, Australia. The shire covers an area of . It existed as a local government entity from 1910 until 2008, when it was ...
, and Tweed Heads, New South Wales. This area is served by a single public transport network, Translink. Broader definitions of South East Queensland are also used, including the separate built-up area of Toowoomba (140 kilometres; 87 miles west of
Brisbane Brisbane ( ) is the capital and most populous city of the states and territories of Australia, Australian state of Queensland, and the list of cities in Australia by population, third-most populous city in Australia and Oceania, with a populati ...
), which is not part of the Translink network. Expansive definitions of South East Queensland give it a population of more than 3.4 million people (2014), ERP at 30 June 2014. covers 22,420 square kilometres (8,660 sq mi), incorporates ten LGAs, and extends 240 kilometres (150 mi) from Noosa in the north to the Gold Coast (some sources include Tweed Heads).


New Zealand

In 2010 Auckland became a unitary authority encompassing seven former city and district councils including
Auckland City Auckland City was a territorial authority with city status covering the central isthmus of the urban area of Auckland, New Zealand. It was governed by the Auckland City Council from 1989 to 2010, and as a territory within the wider Auckland R ...
, Manukau City, North Shore City and Waitakere City as well as a number of smaller towns, rural area and the islands of the Hauraki Gulf.
Auckland Council Auckland Council ( mi, Te Kaunihera o Tāmaki Makaurau) is the local government council for the Auckland Region in New Zealand. It is a territorial authority that has the responsibilities, duties and powers of a regional council and so is ...
is the largest council in Australasia and the region has a population of 1,529,300, being almost 33% of the total population of New Zealand. The entire urban area rather than the constituent administrative city was often referred to as “Auckland” by New Zealanders long before formal recognition. The Wellington Metropolitan Area compromises the four cities of Wellington City,
Porirua Porirua, ( mi, Pari-ā-Rua) a city in the Wellington Region of the North Island of New Zealand, is one of the four cities that constitute the Wellington metropolitan area. The name 'Porirua' is a corruption of 'Pari-rua', meaning "the tide swee ...
and the cities of
Lower Hutt Lower Hutt ( mi, Te Awa Kairangi ki Tai) is a city in the Wellington Region of New Zealand. Administered by the Hutt City Council, it is one of the four cities that constitute the Wellington metropolitan area. It is New Zealand's sixth most p ...
and Upper Hutt, together known as Hutt Valley. The Wellington Metropolitan Area is the second largest urban population in New Zealand with a population of 409,200.


North America


Canada


Golden Horseshoe (Ontario)

The " Golden Horseshoe" is a densely populated and industrialized region centred on the west end of Lake Ontario in Southern Ontario, Canada. The largest cities in the region are Toronto,
Mississauga Mississauga ( ), historically known as Toronto Township, is a city in the Canadian province of Ontario. It is situated on the shores of Lake Ontario in the Regional Municipality of Peel, adjoining the western border of Toronto. With a popul ...
, Oakville, Burlington,
St. Catharines St. Catharines is the largest city in Canada's Niagara Region and the sixth largest urban area in the province of Ontario. As of 2016, it has an area of , 136,803 residents, and a metropolitan population of 406,074. It lies in Southern Ontario ...
, Niagara Falls, Ontario, Brampton, and Hamilton. If metropolitan areas (which are somewhat distinct from the core urban area of the Golden Horseshoe by about 30 to 50 km of less developed and semi-rural land) are included (similar to Combined Metropolitan Statistical Areas in the United States as defined by United States Office of Management and Budget), the total population is 8.8 million people. This is slightly over a quarter (25.6%) of the population of Canada, approximately 75% of Ontario's population, and one of the largest metropolitan areas in North America. The larger area is named the Greater Golden Horseshoe and includes the metropolitan areas of
Kitchener Kitchener may refer to: People * Earl Kitchener, a title in the Peerage of the United Kingdom ** Herbert Kitchener, 1st Earl Kitchener (1850–1916), British Field Marshal and 1st Earl Kitchener ** Henry Kitchener, 2nd Earl Kitchener (1846–1937) ...
(including adjacent cities it is often referred to as Waterloo Region), Barrie, Guelph, Peterborough, and Brantford. The Greater Golden Horseshoe is also part of the Windsor-Quebec Corridor and its southeastern boundary is across the
Niagara River The Niagara River () is a river that flows north from Lake Erie to Lake Ontario. It forms part of the border between the province of Ontario in Canada (on the west) and the state of New York (state), New York in the United States (on the east) ...
from the Buffalo–Niagara Falls metropolitan area in the United States.


Greater Montreal (Quebec)

Greater Montreal is Canada's second-largest conurbation.
Statistics Canada Statistics Canada (StatCan; french: Statistique Canada), formed in 1971, is the agency of the Government of Canada commissioned with producing statistics to help better understand Canada, its population, resources, economy, society, and cultur ...
defines the Census Metropolitan Area (CMA) as having and a population of 3,824,221 as of
2011 File:2011 Events Collage.png, From top left, clockwise: a protester partaking in Occupy Wall Street heralds the beginning of the Occupy movement; protests against Libyan dictator Muammar Gaddafi, who Assassination of Muammar Gaddafi, was killed tha ...
, which represents almost half of the population of the province of Quebec. Slightly smaller, there are 82 municipalities grouped under th
Montreal Metropolitan Community
to coordinate issues such as land planning, transportation, and economic development.


Lower Mainland (British Columbia)

British Columbia's
Lower Mainland The Lower Mainland is a geographic and cultural region of the mainland coast of British Columbia that generally comprises the regional districts of Metro Vancouver and Fraser Valley. Home to approximately 3.05million people as of the 2021 Canadia ...
is the most populated area in Western Canada. It consists of many mid-sized contiguous urban areas, including Vancouver,
North Vancouver North Vancouver may refer to: *North Vancouver (city), a city in British Columbia, Canada * North Vancouver (district municipality), a district municipality in British Columbia, Canada * North Vancouver (electoral district), a federal electoral di ...
(
city A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
and district municipality), West Vancouver, Burnaby, New Westminster, Richmond,
Surrey Surrey () is a ceremonial and non-metropolitan county in South East England, bordering Greater London to the south west. Surrey has a large rural area, and several significant urban areas which form part of the Greater London Built-up Area. ...
, and Coquitlam, among others. The Lower Mainland population is around 2.5 million (as of 2011) and the area has one of the highest growth rates on the continent of up to 9.2 percent from the 2006 census.


National Capital Region (Ontario and Quebec)

The National Capital Region (NCR) is made up of the capital,
Ottawa Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...
, and neighbouring
Gatineau Gatineau ( ; ) is a city in western Quebec, Canada. It is located on the northern bank of the Ottawa River, immediately across from Ottawa, Ontario. Gatineau is the largest city in the Outaouais administrative region and is part of Canada's N ...
which is located across the
Ottawa River The Ottawa River (french: Rivière des Outaouais, Algonquin: ''Kichi-Sìbì/Kitchissippi'') is a river in the Canadian provinces of Ontario and Quebec. It is named after the Algonquin word 'to trade', as it was the major trade route of Eastern ...
. As Ottawa is in Ontario and Gatineau is in Quebec, it is a unique conurbation. Federal government buildings are located in both cities and many workers live in one city and work in the other. The National Capital Region consists of an area of 5,319 square kilometres that straddles the boundary between the provinces of Ontario and Quebec. The area of the National Capital Region is very similar to that of the Ottawa-Gatineau Census Metropolitan Area (CMA) although the National Capital Region contains a number of small neighbouring communities that are not contained within the CMA. When all the communities are included, the population of the area is about 1,500,000. Ottawa-Gatineau is the only CMA in the nation to fall within two provinces.


Mexico


Mexico City (CDMX)

The " CDMX" is the most densely populated center in North America. Greater Mexico City refers to the conurbation around Mexico City, officially called Valley of Mexico Metropolitan Area (Zona Metropolitana del Valle de México), constituted by Mexico City itself composed of 16 Municipalities—and 41 adjacent municipalities of the states of Mexico and Hidalgo. However for normative purposes, Greater Mexico City most commonly refers to the Metropolitan Area of the Valley of Mexico (Zona Metropolitana del Valle de México) an agglomeration that incorporates 18 additional municipalities. As of 2019 an estimated 27,782,000 people lived in Greater Mexico City, making it the largest metropolitan area in North America. It is surrounded by thin strips of highlands which separate it from other adjacent metropolitan areas, of which the biggest are Puebla, Toluca, and Cuernavaca-Cuautla, and together with which it makes up the Mexico City megalopolis.


Guadalajara Metropolitan Area ( Zona Metropolitana de Guadalajara)

The Guadalajara conurbation in the state of
Jalisco Jalisco (, , ; Nahuatl: Xalixco), officially the Free and Sovereign State of Jalisco ( es, Estado Libre y Soberano de Jalisco ; Nahuatl: Tlahtohcayotl Xalixco), is one of the 31 states which, along with Mexico City, comprise the 32 Federal En ...
(colloquially known as the City of Guadalajara, as that is the state capital and most populous of the cities) comprises seven municipalities:
Guadalajara Guadalajara ( , ) is a metropolis in western Mexico and the capital of the list of states of Mexico, state of Jalisco. According to the 2020 census, the city has a population of 1,385,629 people, making it the 7th largest city by population in Me ...
, Zapopan, Tlaquepaque, Tonalá, El Salto, Zapotlanejo, and
Tlajomulco de Zúñiga Tlajomulco de Zúñiga is a city and municipality in the state of Jalisco in central-western Mexico. It forms part of the Guadalajara metropolitan area, lying to the southeast of it. It covers an area of 636.93 km2. it had a population of ...
. Officially two other cities ( Juanacatlán and Ixtlahuacán de los Membrillos) are also considered part of the Metropolitan Area, though they are not contiguous with the other seven. The area had an estimated population of 4 500 000 in 2010, spread over a combined area of .


United States


Puerto Rico

The Caribbean area has a conurbation in Puerto Rico consisting of
San Juan San Juan, Spanish for Saint John, may refer to: Places Argentina * San Juan Province, Argentina * San Juan, Argentina, the capital of that province * San Juan, Salta, a village in Iruya, Salta Province * San Juan (Buenos Aires Underground), ...
, Bayamón, Guaynabo,
Carolina Carolina may refer to: Geography * The Carolinas, the U.S. states of North and South Carolina ** North Carolina, a U.S. state ** South Carolina, a U.S. state * Province of Carolina, a British province until 1712 * Carolina, Alabama, a town in ...
, Canóvanas, Trujillo Alto,
Toa Alta Toa Alta () is a town and municipality of Puerto Rico located in the northern coast of the island, north of Naranjito; south of Dorado and Toa Baja; east of Vega Alta and Corozal; and west of Bayamón. Toa Alta is spread over eight barrios an ...
, Toa Baja, Cataño, and Caguas. This area is colloquially known as the " Área Metropolitana", and houses around 1.4 million inhabitants spread over an area of approximately 396.61 square kilometers (153.13 sq mi), making it the largest city in the Caribbean by area.


New York Tri-state area

One example of a conurbation is the expansive concept of the New York metropolitan area (the Tri-state region) centered on New York City, including 30 counties spread among New York State, New Jersey,
Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...
, and Pennsylvania, with an estimated population of 21,961,994 in 2007. Approximately one-fifteenth of all U.S. residents live in the Greater New York City area, the world's most brightly illuminated urban conurbation and largest urban landmass. This conurbation is the result of several central cities whose urban areas have merged.


Greater Boston Area

Holding a population of 7,427,336 as of 2005, the Combined Statistical Area including Greater Boston consists of
Boston Boston (), officially the City of Boston, is the capital city, state capital and List of municipalities in Massachusetts, most populous city of the Commonwealth (U.S. state), Commonwealth of Massachusetts, as well as the cultural and financ ...
proper and a collection of distinct but intertwined cities including Providence, Rhode Island, Worcester, Massachusetts, and Manchester, New Hampshire. Most importantly, the cities that compose the Greater Boston CSA are interlinked by heavy public transportation infrastructure, maintain continuously urban interstices, and hold mutual commuting patterns.


San Francisco Bay Area

Another conurbation is the combination of the metropolitan areas of San Francisco,
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
, and San Jose and several minor urban centers with a combined population of nearly 8 million people, known as the San Francisco Bay Area.


Greater Los Angeles Area

The Greater Los Angeles Area consists of the merging of several distinct central cities and counties, including Los Angeles, Orange County, Riverside, San Bernardino, and Ventura. This area is also often referred to simply as Southern California or colloquially as SoCal (a larger region which includes San Diego). In 2016, Southern California had a population of 23,800,500, making it slightly larger than the New York Tri-State Area, and is projected to remain so due to a faster growth rate. But because Southern California is not yet a recognized Combined Statistical Area by the United States Office of Management and Budget, the New York Tri-State Area officially remains the nation's largest as of now.


Greater Houston area

An example of a conurbation is seen in Greater Houston. Centered in Houston, the area is continuously urbanized from the coastal areas of Galveston extending through the northern side of the metro area, including The Woodlands, Conroe, and Spring, and going up to Huntsville. The suburbs of Fort Bend County, Texas extend through the cities of the Galveston Bay Area and beyond. It has a population of 7,197,883.


Baltimore–Washington Area

The traditionally separate metropolitan areas of
Baltimore Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...
and Washington, D.C. have shared suburbs and a continuous urbanization between the two central cities ( Baltimore–Washington metropolitan area).


San Diego–Tijuana

The largest conurbation between the United States and Mexico is
San Diego–Tijuana San Diego–Tijuana is an international transborder agglomeration, straddling the border of the adjacent North American coastal cities of San Diego, California, United States and Tijuana, Baja California, Mexico. The 2012 population of the reg ...
. It includes the two countries' busiest border crossing and a shared economy.


Dallas–Fort Worth

Three large cities— Dallas,
Fort Worth Fort Worth is the fifth-largest city in the U.S. state of Texas and the 13th-largest city in the United States. It is the county seat of Tarrant County, covering nearly into four other counties: Denton, Johnson, Parker, and Wise. According ...
, and Arlington—make up this area. Each city is linked by bordering city limits or suburbs. The area is also known as the Dallas–Fort Worth “metroplex”, so called because it has more than one principal anchor city of nearly equal size or importance, and is included in the emerging megalopolis known as the Texas Triangle. According to '' Texas Monthly'', the term is a portmanteau of the terms "metropolitan" and "complex" and was created by a local advertising agency, TracyLocke. The North Texas Commission trademarked the term "Dallas/Fort Worth Metroplex" in 1972 as a replacement for the previously ubiquitous term "North Texas". Urban areas with smaller secondary anchor cities (including Mexico City, New York City, Los Angeles, Houston,
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = List of sovereign states, Count ...
, and Phoenix) are not considered to be conurbations.


Detroit–Windsor

The major U.S. city of
Detroit Detroit ( , ; , ) is the largest city in the U.S. state of Michigan. It is also the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. The City of Detroit had a population of 639,111 at ...
lies immediately across the Detroit River from Windsor, Ontario in Canada. In many respects—economically, historically, culturally, socially, and geographically—Windsor is more a part of Metro Detroit than of Ontario. The two cities and their surrounding suburbs are commonly referred to collectively as the Detroit–Windsor area. The Detroit-Windsor border is the largest commercial border crossing in North America and the busiest between the two countries.


South Florida

The entire tri-county area also known as the Miami-Fort Lauderdale-West Palm Beach metropolitan area is now continuously urbanized along a roughly length of the Florida east coast as well as extending inland and continuing south of Miami as far as Florida City. Although this is generally all referred to as a single metropolitan area, not a conurbation, it is sometimes broken up into the Miami, Fort Lauderdale, and West Palm Beach metros.


Minneapolis–St. Paul

Minneapolis–Saint Paul is the most populous urban area in the state of Minnesota, and is composed of 182 cities and townships built around the Mississippi, Minnesota, and St. Croix rivers. The area is also nicknamed the Twin Cities for its two largest cities, Minneapolis, with the highest population and
Saint Paul Paul; grc, Παῦλος, translit=Paulos; cop, ⲡⲁⲩⲗⲟⲥ; hbo, פאולוס השליח (previously called Saul of Tarsus;; ar, بولس الطرسوسي; grc, Σαῦλος Ταρσεύς, Saũlos Tarseús; tr, Tarsuslu Pavlus; ...
, the state capital.


Quad Cities

The Quad Cities is a metropolitan area located along the border of Illinois and Iowa. Straddling the Mississippi River as it flows west, the area once known as the "Tri Cities" consists of a handful of larger cities and smaller municipalities that have grown together. The largest cities include Rock Island, Moline, and
East Moline East Moline is a city in Rock Island County, Illinois, United States. The population was 21,374 at the 2020 census. East Moline is part of the Quad Cities, along with the cities of Rock Island, Moline, and the Iowa cities of Davenport and Bett ...
in Illinois as well as
Davenport Davenport may refer to: Places Australia *Davenport, Northern Territory, a locality * Hundred of Davenport, cadastral unit in South Australia **Davenport, South Australia, suburb of Port Augusta **District Council of Davenport, former local govern ...
and Bettendorf in Iowa.


The Valley of the Sun

Phoenix is the capital and most populous city in
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a U.S. state, state in the Southwestern United States. It is the list of U.S. states and territories by area, 6th largest and the list of U.S. states and territories by population, 14 ...
. It is the center of The Valley of the Sun which is recognized by the United States Census Bureau as
Chandler Chandler or The Chandler may refer to: * Chandler (occupation), originally head of the medieval household office responsible for candles, now a person who makes or sells candles * Ship chandler, a dealer in supplies or equipment for ships Arts ...
, Mesa, and Phoenix in the MSA. Other communities in the metropolitan area include Scottsdale, Glendale, Tempe,
Gilbert Gilbert may refer to: People and fictional characters *Gilbert (given name), including a list of people and fictional characters *Gilbert (surname), including a list of people Places Australia * Gilbert River (Queensland) * Gilbert River (South A ...
, and Peoria.


The Front Range Urban Corridor

Denver is the capital and most populous city in
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
, as well as the most populous municipality in the Front Range Urban Corridor. This conurbation encompasses 18 counties in Colorado and Wyoming and had an estimated population of 4,976,781 in 2018, an increase of 14.84% since the
2010 United States Census The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators servin ...
.


South America


Argentina

*
Greater Buenos Aires Greater Buenos Aires ( es, Gran Buenos Aires, GBA), also known as the Buenos Aires Metropolitan Area ( es, Área Metropolitana de Buenos Aires, AMBA), refers to the urban agglomeration comprising the Autonomous City of Buenos Aires and the adjac ...
(12.046.799) – Greater La Plata (694.253) – Zárate / Campana


Brazil

The entire Rio–São Paulo area is also sometimes considered a conurbation, and plans are in the works to connect the cities with a
high-speed rail High-speed rail (HSR) is a type of rail system that runs significantly faster than traditional rail, using an integrated system of specialised rolling stock and dedicated tracks. While there is no single standard that applies worldwide, lines ...
. However the government of Brazil does not consider this area a single unit for statistical purposes, and population data may not be reliable.


Colombia


Peru


Asia


China

There are 3 well-known conurbations in China. * The Yangtze River Delta comprising Shanghai, Nanjing, Hangzhou and Ningbo, houses 150 million people and in 2016 it generated $2.76 trillion, 20 percent of China's national GDP. It is responsible for one-third of China's imports and exports. * The Jing-Jin-Ji, Jingjinji, comprising Tianjin, Beijing, Tangshan and Qinhuangdao, houses an estimated 130 million people and is responsible for a GDP of $1.1 trillion. * The Pearl River Delta including Guangzhou, Shenzhen, Dongguan, Hong Kong and Macau houses 60 million people and is responsible for a GDP of $1,5 trillion, 9% of China's national GDP.


India

The Mumbai Metropolitan Region (MMR) consists of Mumbai and its satellite towns. Developing over a period of about 20 years, it consists of seven municipal corporations and fifteen smaller municipal councils. The region has an area of 4,355 km² and with a population of 20.5 million, and is among the top ten most populated urban agglomerations in the world. It is linked together through the Mumbai Suburban Railway system and a large network of roads. The National Capital Region (India), National Capital Region (NCR) is a name for the coordinated planning region which encompasses the entire Delhi, National Capital Territory of Delhi as well as several surrounding districts in the neighbouring states of Uttar Pradesh, Haryana and Rajasthan. However, the conurbation of Delhi is actually limited to the NCT of Delhi and the neighbouring contiguous urban areas comprising Gurgaon, Faridabad, Noida, Greater Noida and Ghaziabad. The area is officially known as the Central National Capital Region (CNCR), a small part of overall NCR. The population of this conurbation was estimated 21.7 million in 2011. It is the world's third most populous urban agglomeration. The Andhra Pradesh Capital Region, Amaravati Metropolitan Region (AMR) of Andhra Pradesh is a conurbation of three cities, namely Vijayawada, Eluru and Guntur and 11 other towns which include Mangalagiri, Tadepalle Municipality, Tadepalle, Tenali, Ponnuru, Chilakaluripeta, Narasaraopeta, Sattenapally, Nandigama, Jaggayyapeta, Nuzividu, Gudivada and Vuyyuru. The new capital city of the state, Amaravati, is being developed between the cities of Vijayawada and Guntur at the center of the conurbation. The region holds a total population of 58 lakhs. The Greater Jamshedpur, Jamshedpur Metropolitan Area has a plan of Greater Jamshedpur. This place contains the area and city of Adityapur, Mango (Jamshedpur), Maango and Jugsalai


Bangladesh

As of 2018 Dhaka was linked with Narayanganj and Gazipur city; there are no gaps between Dhaka and those two cities.


Indonesia

Greater Jakarta or Jabodetabek comprises the largest urban area in Indonesia and the second-largest in the world with a population of around 30 million. The center and national capital, Jakarta, has a population of 10.3 million within its borders. The second-most populated city in Indonesia, Surabaya, also forms a conurbation known as Gerbangkertosusila with a metropolitan population of about 10 million compared to the city proper of 3 million. Conurbations are also present around Bandung and Medan.


Israel

* Gush Dan, Metropolitan Area of Tel Aviv, Central District (Israel), Central District (has about 45% of the country's total population)


Japan

The Taiheiyō Belt is the largest conurbation in Japan in every sense, extending from Ibaraki Prefecture to Fukuoka Prefecture, running almost 1,200 km, with the total population of 82.9 million. However, it is rarely referred to in Japan itself with each Prefecture maintaining separate identities. The Greater Tokyo Area, also called Shutoken (the National Capital Region (Japan), National Capital Region), is a
metropolitan area A metropolitan area or metro is a region that consists of a densely populated urban agglomeration and its surrounding territories sharing industries, commercial areas, transport network, infrastructures and housing. A metro area usually com ...
in the Kantō region, with the estimated population of 35,676,000 in 2007, often referred to as the most populous and economically largest metropolitan area in the world.


Jordan

More than 50% of Jordan’s population live in the conurbation of Amman-Russeifa-Zarqa.


Malaysia

The Klang Valley conurbation in the state of Selangor is composed of these areas: * Kuala Lumpur, the capital of Malaysia; * Petaling Jaya; * Ampang Jaya; * Pandan Indah; * Subang Jaya; * Shah Alam; * Klang (city), Klang; * Selayang; * Gombak; * Putrajaya; * Cyberjaya; * Sepang; and * Kajang. The second largest conurbation by population in Malaysia is Greater Penang Conurbation, Greater Penang. Centred in George Town, Penang, George Town which is the capital city of the Penang, State of Penang, the conurbation also includes these towns in Penang, and within the neighbouring states of Kedah and Perak. *Butterworth, Penang, Butterworth * Bukit Mertajam * Perai *Batu Kawan * Nibong Tebal * Sungai Petani, Kedah * Kulim District, Kulim, Kedah * Bandar Baharu District, Bandar Baharu, Kedah * Parit Buntar, Perak *Bagan Serai, Perak The third largest conurbation by population in Malaysia is Iskandar Malaysia. Centred in Johor Bahru which is the capital city of the state of Johor, the conurbation also includes these towns in Johor. * Johor Bahru, the centre of Iskandar Malaysia * Tebrau * Pasir Gudang * Ulu Tiram * Kempas * Tampoi, Johor, Tampoi * Skudai * Iskandar Puteri * Senai * Kulai * Pekan Nenas


Pakistan

*Karachi–Hyderabad, Sindh, is one of the largest metropolitan areas of the world, with a population exceeding 20 million (2017). *Rawalpindi–Islamabad, also known as the twin cities of Pakistan, were built about 8 miles apart and have now completely intertwined into each other due to massive population growth and the expansion of both cities. * Lahore–Raiwind–Kala Shah Kaku, the second largest city in Pakistan with its adjoining towns of Kala Shah Kaku and Raiwind.


Palestine

The Gaza Strip conurbation has a population of 2.1 million.


Philippines

Metro Manila, also known as the National Capital Region, is a conurbation of the capital Manila, fifteen neighboring cities, and a small town to compose the largest urban center in the Philippines. Within the immediate periphery but not administratively part of the region, are cities and towns belonging to various provinces near the capital region. These include the cities of Antipolo, Bacoor, Meycauayan, San Jose del Monte and San Pedro, Laguna, San Pedro; and the towns of Angono, Binangonan, Cainta, Cardona, Rizal, Cardona, Marilao, Bulacan, Marilao, Obando, Bulacan, Obando, Rodriguez, Rizal, Rodriguez, San Mateo, Rizal, San Mateo and Taytay, Rizal, Taytay.


Taiwan

There are 3 major conurbations in Taiwan. * The Taipei-Keelung Metropolitan Area, Taipei-Taoyuan-Keelung Metropolitan Area (also known as Northern Taiwan Conurbation) is located in northern Taiwan, comprising Taipei, New Taipei, Keelung and Taoyuan City, Taoyuan, houses 9.3 million people. It is the most populous and the most densely populated metropolitan area in Taiwan, with one-third of Taiwanese people living and working there. The region is the epicenter of Taiwanese Culture of Taiwan, culture, Economy of Taiwan, economy, Education in Taiwan, education and Government of the Republic of China, government. Designated as a global city, the region exerts a significant impact on commerce, finance, media, art, fashion, research, technology, education, and entertainment, both locally and internationally. * The Taichung–Changhua metropolitan area, Taichung–Changhua-Nantou metropolitan area (also known as Central Taiwan Conurbation), located in central Taiwan and comprising Taichung, Changhua County, Changhua, and Nantou County, Nantou, houses an estimated 4.6 million people, about a fifth of the Taiwanese population. * The Kaohsiung metropolitan area, Kaohsiung-Pingtung-Tainan metropolitan area (also known as Southern Taiwan Conurbation), including Kaohsiung, Tainan and Pingtung County, Pingtung, is located in southern Taiwan and houses approximately 5.4 million people.


Turkey

Asian part of Istanbul forms a conurbation together with Gebze, Darıca, Çayırova District, Kocaeli, Çayırova, Dilovası districts of Kocaeli Province, Kocaeli Province and with town of Yalova on south of the Gulf of İzmit, İzmit Bay. Each province has separate governments but they work in close coordination. Transport between Anatolian part of Istanbul and western end of Kocaeli Province, Kocaeli is coordinated by both provinces and there are interprovincial urban buses between Kartal and İzmit and Marmaray, commuter rail service between Halkalı railway station, Halkalı and Gebze via Bosporus, Bosphorus, dense ferry service between Yalova and İstanbul although each municipality has a clear boundary of service. Tri-province region makes 17,5 million, which is 20% of Turkey's population. İzmir and Manisa forms a conurbation. Although there is a Spil Mount, mountain between cities with State road D.565 (Turkey), D565 via Sabuncubeli Tunnel many people daily commutes for work, education and home. In addition, İZBAN commuter rail connects satellite towns with İzmir in north and south directions. Two cities metropolitan areas together makes up of a population of 3,3 million.


Thailand

Bangkok Metropolitan Region, Thailand, is an urban agglomeration of the Bangkok metropolis as well as the five adjacent provinces of Nakhon Pathom, Pathum Thani, Nonthaburi, Samut Prakan, and Samut Sakhon.


United Arab Emirates

The United Arab Emirates, while comprising seven distinct entities called emirates, each with its own Emirs, contains a significant conurbation formed by the agglomeration of the urban areas of three cities belonging to three separate Emirates. The Dubai-Sharjah-Ajman metropolitan area contains the urban areas of Dubai to the south, Sharjah in the middle and Ajman toward the north eastern end of the conurbation. The total population is about 5.64 million people as of 2015 and as such, contributes to over 70% of the UAE population. Dubai is the major financial hub and Sharjah serves as an industrial, educational, cultural and major residential centre.


Vietnam

*Ho Chi Minh City metropolitan area, Ho Chi Minh City Metropolitan Region: comprising Ho Chi Minh City (itself comprising Ho Chi Minh City#Administration, the inner districts, Nhà Bè, Bình Chánh District, Bình Chánh, Hóc Môn, Củ Chi and Cần Giờ District, Cần Giờ); Bình Dương (itself comprising Thủ Dầu Một, Bến Cát (town), Bến Cát, Tân Uyên Town, Tân Uyên, Thuận An, Dĩ An); Đồng Nai (itself comprising Biên Hòa and Long Thành (township in Đồng Nai), Long Khánh); Bà Rịa–Vũng Tàu (itself comprising Vũng Tàu, Bà Rịa, and Phú Mỹ, Bà Rịa–Vũng Tàu, Phú Mỹ); Tây Ninh (city), Tây Ninh (Tây Ninh Province, Tây Ninh); Tân An, Long An (itself comprising Tân An, Long An Province, Tân An and Kiến Tường); Bình Phước Province, Bình Phước (itself comprising Đồng Xoài, Bình Long, Bình Phước, Bình Long and Phước Long, Bình Phước, Phước Long); Tiền Giang Province, Tiền Giang (itself comprising Mỹ Tho, Cai Lậy (town), Cai Lậy and Gò Công) *Hanoi Capital Region, Hanoi Metropolitan Region: comprising Hanoi, Hà Nội and the former province of Hà Tây Province, Hà Tây (itself comprising Hanoi#Administration, Hà Nội's urban districts, Gia Lâm District, Gia Lâm, Đông Anh, Mê Linh District, Mê Linh, Sóc Sơn District, Sóc Sơn, Hà Đông District, Hà Đông and Sơn Tây); Bắc Ninh Province, Bắc Ninh (itself comprising Từ Sơn and Bắc Ninh); Thái Nguyên Province, Thái Nguyên (itself comprising Thái Nguyên, Sông Công and Phổ Yên District, Phổ Yên); Vĩnh Phúc (itself comprising Phúc Yên and Vĩnh Yên); Phú Thọ Province, Phú Thọ (itself comprising Phú Thọ (town), Phú Thọ and Việt Trì); Hòa Bình City, Hòa Bình (Hòa Bình Province, Hòa Bình); Hưng Yên Province, Hưng Yên (ítelf comprising Hưng Yên and Mỹ Hào (town), Mỹ Hào); Hải Dương Province, Hải Dương (itself comprising Chí Linh (city), Chí Linh and Hải Dương); Bắc Giang (Bắc Giang Province, Bắc Giang) and Phủ Lý (Hà Nam Province, Hà Nam)


Europe


Belgium

The Flemish Diamond ( nl, Vlaamse Ruit, links=no) is the Flemish community, Flemish reference to a network of four metropolitan areas in Belgium, three of which are in the central provinces of Flanders, together with the Brussels Capital Region. It consists of four agglomerations which form the four corners of a diamond shape: Brussels, Ghent, Antwerp and Leuven. Over five million people live in this conurbation, with a population density of more than 800 per square kilometre. Actually, given the high level of commuting from and to Brussels every day, supported by one of the densest networks of railways and motorways in the world, It could be easily argued that the whole Belgium and Luxembourg area is one conurbation or is becoming one.


France

The most notable conurbation is Lille-Roubaix-Tourcoing-Villeneuve-d'Ascq, located in the north of France, with over 1.2 million people living in the area. That conurbation is actually an international one as Belgian cities such as Tournai are increasingly playing the role of commuter town for Lille.


Germany

Germany has three conurbations along the River Rhine, namely Rhine-Main, Rhine-Neckar and Rhine-Ruhr. The Rhine-Ruhr is the largest conurbation in continental Europe and is a densely populated polycentric Metropolitan regions in Germany, metropolitan region in the western part of Germany, comprising the three subregions of Ruhr, Ruhr Metropolitan Region, Düsseldorf-Mönchengladbach-Wuppertal Region and Cologne/Bonn Region, Cologne/Bonn Metropolitan Region. These three are all interlinked by a continuous urban settlement, while at the same time having cultural and economic differences.


Italy

Naples metropolitan area, that includes the whole metropolitan city of Naples, Caserta, Salerno and several other municipalities.


Malta

Valletta Urban Area, the area around the Grand Harbour, is the main conurbation in Malta. It contains 27 of the Malta's 68 local councils including the capital Valletta. According to the Demographia, Valletta Urban Area has a population of 300,000,World Urban Areas
– Demographia, 2014
while the European Spatial Planning Observation Network states that the functional urban area of Valletta has a population of 355,000, which represents about 75% of Malta's population.


Netherlands

The Randstad is a densely populated area in the Netherlands with over 7 million inhabitants. It consists of a cluster of the four most populous cities of the country (Amsterdam, Rotterdam, The Hague and Utrecht) as well as several smaller cities, towns and urbanized villages.


Poland

Katowice Urban Area (''aglomeracja katowicka, ''konurbacja górnośląska'', ''GOP'') is the largest conurbation in Poland, located in Upper Silesia, southern Poland. Around 5,294,000 people live in the region — up 5.26% of the population of Poland.


Spain

*The conurbation of Barcelona *The conurbation of Bilbao


United Kingdom

Industrial and housing growth in the United Kingdom during the 19th and early 20th centuries produced many conurbations. Greater London is by far the largest urban area and is usually counted as a conurbation in statistical terms, but differs from the others in the degree to which it is focused on a single central area. In the mid-1950s the Metropolitan Green Belt, Green Belt was introduced to stem the further urbanisation of the countryside in South East England. The list below shows the most populous urban areas in the UK as defined by the Office for National Statistics (ONS). Different organisations define conurbations in the UK differently for example, Liverpool–Manchester Megalopolis, the Liverpool–Manchester or the Manchester–Liverpool conurbation is defined as one conurbation by AESOP in a comparison report published by the University of Manchester in 2005 foun
here.
The Liverpool–Manchester Conurbation has a population of 5.68 million.


See also

* Ecumenopolis * Ekistics * Megalopolis * Transborder agglomeration * Urban sprawl


References


Further reading

: Patrick Geddes
In Evolution
'' : Edward Soja – ''"Postmetropolis"'' {{Cities Urban studies and planning terminology Urbanization Types of populated places