
A metropolis ()
is a large
city
A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agree ...
or
conurbation
A conurbation is a region consisting of a number of metropolises, cities, large towns, and other urban areas which, through population growth and physical expansion, have merged to form one continuous urban or industrially developed area. In most ...
which is a significant economic, political, and cultural area for a country or region, and an important hub for regional or international connections, commerce, and communications.
A big city belonging to a larger
urban agglomeration
An urban area is a human settlement with a high population density and an infrastructure of built environment. Urban areas originate through urbanization, and researchers categorize them as cities, towns, conurbations or suburbs. In urbani ...
, but which is not the core of that agglomeration, is not generally considered a metropolis but a part of it. The plural of the word is ''metropolises'', although the Latin plural is , from the Greek ().
For urban areas outside metropolitan areas that generate a similar attraction on a smaller scale for their region, the concept of the
regiopolis ("regio" for short) was introduced by urban and regional planning researchers in Germany in 2006.
Etymology
() is a
Greek
Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group
*Greek language, a branch of the Indo-European language family
**Proto-Greek language, the assumed last common ancestor of all kno ...
word, (plural: ) coming from , meaning "mother" and , meaning "city" or "town", which is how the
Greek colonies
Greek colonisation refers to the expansion of Archaic Greeks, particularly during the 8th–6th centuries BC, across the Mediterranean Sea and the Black Sea.
The Archaic expansion differed from the Iron Age migrations of the Greek Dark Ages ...
of antiquity referred to their original cities, with whom they retained cultic and political-cultural connections. The word was used in post-classical Latin for the chief city of a province, the seat of the government and, in particular,
ecclesiastically for the seat or see of a
metropolitan bishop
In Christianity, Christian Christian denomination, churches with episcopal polity, the rank of metropolitan bishop, or simply metropolitan (alternative obsolete form: metropolite), is held by the diocesan bishop or archbishop of a Metropolis (reli ...
to whom
suffragan bishop
A suffragan bishop is a type of bishop in some Christian denominations.
In the Catholic Church, a suffragan bishop leads a diocese within an ecclesiastical province other than the principal diocese, the metropolitan archdiocese; the diocese led b ...
s were responsible. This usage equates the province with the
diocese
In Ecclesiastical polity, church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop.
History
In the later organization of the Roman Empire, the increasingly subdivided Roman province, prov ...
or
episcopal see
An episcopal see is the area of a bishop's ecclesiastical jurisdiction.
Phrases concerning actions occurring within or outside an episcopal see are indicative of the geographical significance of the term, making it synonymous with ''diocese'' ...
.
In a colonial context, it is the "mother city" of a
colony
A colony is a territory subject to a form of foreign rule, which rules the territory and its indigenous peoples separated from the foreign rulers, the colonizer, and their ''metropole'' (or "mother country"). This separated rule was often orga ...
, that is, the city which sent out settlers. The word has distant roots in the
colonial past of Ancient Greece with first usage in
Middle English
Middle English (abbreviated to ME) is a form of the English language that was spoken after the Norman Conquest of 1066, until the late 15th century. The English language underwent distinct variations and developments following the Old English pe ...
around the 14th century. This was later generalized to a city regarded as a center of a specified activity, or any large, important city in a nation.
Concept
The concept of a "metropolis" as a "mother city" dates back to at least sixth-century Canterbury, where the term was used in a religious context, but the term began to be used to describe a large secular city starting with 16th-century London. London's cultural influence meant that until the 19th century, concepts of the "metropolis" were rarely used to describe other cities, though Edinburgh was also described as a "metropolis." While metropolis can often mean any large city, the metropolis is generally understood as a city which serves as a particular function as opposed to simply being large.
Modern ideas of a metropolis have changed as modern city growth has created "polycentric" urban regions, where one city does not necessarily dominate its surroundings but instead is central to an economic region. Instead of a single "metropolis" fulfilling an economic role, large urban areas such as the Tokyo–Osaka corridor or the southern California built up area have been considered as a modern "metropolis" even though the region encompasses multiple cities.
Usage as a mainland area
In France, Portugal, Spain, and the Netherlands, the word ''metropolis'' (''métropole'' (Fr.) / ''metrópole'' (Port.) / ''metrópoli'' (Spa.) / ''metropool'' (Dutch)) designates the mainland part of a country situated on or close to the European mainland; in the case of France, this means France without its
overseas departments. For Portugal and Spain during the
Spanish Empire
The Spanish Empire, sometimes referred to as the Hispanic Monarchy (political entity), Hispanic Monarchy or the Catholic Monarchy, was a colonial empire that existed between 1492 and 1976. In conjunction with the Portuguese Empire, it ushered ...
and
Portuguese Empire
The Portuguese Empire was a colonial empire that existed between 1415 and 1999. In conjunction with the Spanish Empire, it ushered in the European Age of Discovery. It achieved a global scale, controlling vast portions of the Americas, Africa ...
period, the term was used to designate Portugal or Spain minus its colonies (the ''Ultramar''). In France ''métropole'' can also be used to refer to a large
urban agglomeration
An urban area is a human settlement with a high population density and an infrastructure of built environment. Urban areas originate through urbanization, and researchers categorize them as cities, towns, conurbations or suburbs. In urbani ...
; for example, "La Métropole de Lyon" (the
Lyon Metropolis
The Metropolis of Lyon (, ), also known as Grand Lyon (, "Greater Lyon"), is a French territorial collectivity in the east-central region of Auvergne-Rhône-Alpes. It is a directly-elected metropolitan authority, encompassing both the city of Ly ...
).
By country
The following countries either have a specific legal definition of "metropolis" or have a history of usage of the term (or a similar term).
Americas
Brazil
The term used in
Brazilian Portuguese
Brazilian Portuguese (; ; also known as pt-BR) is the set of Variety (linguistics), varieties of Portuguese language native to Brazil. It is spoken by almost all of the 203 million inhabitants of Brazil and widely across the Brazilian diaspora ...
for a metropolitan area is ''Região Metropolitana''. In Brazil, the
Greater São Paulo is the principal metropolis with over 21 million inhabitants. In the larger cities, such as
São Paulo
São Paulo (; ; Portuguese for 'Paul the Apostle, Saint Paul') is the capital of the São Paulo (state), state of São Paulo, as well as the List of cities in Brazil by population, most populous city in Brazil, the List of largest cities in the ...
and
Rio de Janeiro
Rio de Janeiro, or simply Rio, is the capital of the Rio de Janeiro (state), state of Rio de Janeiro. It is the List of cities in Brazil by population, second-most-populous city in Brazil (after São Paulo) and the Largest cities in the America ...
(population 12 million),
favelas (slums) grew up over decades as people migrated from rural areas in order to find work. Other metropolises in Brazil with more than one million inhabitants include:
Belém
Belém (; Portuguese for Bethlehem; initially called Nossa Senhora de Belém do Grão-Pará, in English Our Lady of Bethlehem of Great Pará), often called Belém of Pará, is the capital and largest city of the state of Pará in the north of B ...
,
Belo Horizonte
Belo Horizonte is the List of largest cities in Brazil, sixth-largest city in Brazil, with a population of around 2.3 million, and the third largest metropolitan area, containing a population of 6 million. It is the List of cities in Sout ...
,
Brasília
Brasília ( ; ) is the capital city, capital of Brazil and Federal District (Brazil), Federal District. Located in the Brazilian highlands in the country's Central-West Region, Brazil, Central-West region, it was founded by President Juscelino ...
,
Campinas
Campinas (, ''Plains'' or ''Meadows'') is a Brazilian Municipalities of Brazil, municipality in São Paulo (state), São Paulo State, part of the country's Southeast Region, Brazil, Southeast Region. According to the 2020 estimate, the city's popul ...
,
Curitiba
Curitiba () is the capital and largest city in the state of Paraná (state), Paraná in Southern Brazil. The city's population was 1,773,718 , making it the List of cities in Brazil by population, eighth most populous city in Brazil and the larg ...
,
Fortaleza
Fortaleza ( ; ; ) is the state capital of Ceará, located in Northeast Region, Brazil, Northeastern Brazil. It is Brazil's 4th largest city—Fortaleza surpassed Salvador, Bahia, Salvador in 2022 census with a population of slightly over 2.4 mi ...
,
Goiânia
Goiânia ( ; ) is the capital and largest city of the Brazilian federative units of Brazil, state of Goiás. With a population of 1,536,097, it is the second-largest city in the Central-West Region, Brazil, Central-West Region and the 10th-larges ...
,
Maceió,
Manaus
Manaus () is the List of capitals of subdivisions of Brazil, capital and largest city of the States of Brazil, Brazilian state of Amazonas (Brazilian state), Amazonas. It is the List of largest cities in Brazil, seventh-largest city in Brazil, w ...
,
Porto Alegre
Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most p ...
,
Recife
Recife ( , ) is the Federative units of Brazil, state capital of Pernambuco, Brazil, on the northeastern Atlantic Ocean, Atlantic coast of South America. It is the largest urban area within both the North Region, Brazil, North and the Northeast R ...
,
Salvador and
São Luís.
Canada
Statistics Canada
Statistics Canada (StatCan; ), 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 culture. It is headquartered in ...
defines a
census metropolitan area
The census geographic units of Canada are the census subdivisions defined and used by Canada's federal government statistics bureau Statistics Canada to conduct the country's quinquennial census. These areas exist solely for the purposes of stat ...
as one or more adjacent municipalities situated around a major urban core where the urban core has a population of at least 100,000. Canada's six largest metropolises are
Toronto
Toronto ( , locally pronounced or ) is the List of the largest municipalities in Canada by population, most populous city in Canada. It is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a p ...
,
Montreal
Montreal is the List of towns in Quebec, largest city in the Provinces and territories of Canada, province of Quebec, the List of the largest municipalities in Canada by population, second-largest in Canada, and the List of North American cit ...
,
Vancouver
Vancouver is a major city in Western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the cit ...
,
Ottawa
Ottawa is the capital city of Canada. It is located in the southern Ontario, southern portion of the province of Ontario, at the confluence of the Ottawa River and the Rideau River. Ottawa borders Gatineau, Gatineau, Quebec, and forms the cor ...
,
Calgary
Calgary () is a major city in the Canadian province of Alberta. As of 2021, the city proper had a population of 1,306,784 and a metropolitan population of 1,481,806 making it the third-largest city and fifth-largest metropolitan area in C ...
, and
Edmonton
Edmonton is the capital city of the Provinces and territories of Canada, Canadian province of Alberta. It is situated on the North Saskatchewan River and is the centre of the Edmonton Metropolitan Region, which is surrounded by Central Alberta ...
.
United States

In the United States, an
incorporated area or group of areas having a population more than 50,000 is required to have a
metropolitan planning organization in order to facilitate major infrastructure projects and to ensure financial solvency. Thus, a population of 50,000 or greater has been used as a de facto standard to define a ''metropolis'' in the United States. A similar definition is used by the
United States Census Bureau
The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...
. The bureau defines a
Metropolitan Statistical Area as "at least one urbanized area of 50,000 or more inhabitants." The six largest metropolitan areas in the USA are
New York,
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
,
Chicago
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of Unite ...
,
Dallas
Dallas () is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the List of Texas metropolitan areas, most populous metropolitan area in Texas and the Metropolitan statistical area, fourth-most ...
,
Houston
Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...
, and
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...
, with New York being the largest.
Mexico
In Mexico, a metropolis is an urban area with a high concentration of population and activities, interacting with nearby municipalities. The Consejo Nacional de Población (CONAPO) last reviewed the criteria in 2018, and from that date, a metropolitan area in Mexico is defined as: a set of two or more municipalities where a city with a population of at least 100,000 is located, and whose urban area, functions and activities exceed the limits of the municipality, incorporating within its area of direct influence the predominantly urban neighboring municipalities, maintaining a high degree of socioeconomic integration. Also included are those municipalities that, due to their particular characteristics, are relevant to urban planning and policy for each metropolitan area.
The six largest metropolitan areas are the
Mexico City
Mexico City is the capital city, capital and List of cities in Mexico, largest city of Mexico, as well as the List of North American cities by population, most populous city in North America. It is one of the most important cultural and finan ...
,
Monterrey
Monterrey (, , abbreviated as MtY) is the capital and largest city of the northeastern Mexican state of Nuevo León. It is the ninth-largest city and the second largest metropolitan area, after Greater Mexico City. Located at the foothills of th ...
,
Guadalajara
Guadalajara ( ; ) is the capital and the most populous city in the western Mexican List of states of Mexico, state of Jalisco, as well as the most densely populated municipality in Jalisco. According to the 2020 census, the city has a population ...
,
Puebla
Puebla, officially the Free and Sovereign State of Puebla, is one of the 31 states that, along with Mexico City, comprise the Federal Entities of Mexico. It is divided into 217 municipalities and its capital is Puebla City. Part of east-centr ...
,
Toluca
Toluca , officially Toluca de Lerdo , is the States of Mexico, state capital of the State of Mexico as well as the seat of the Municipality of Toluca. Toluca has a population of 910,608 as of the 2020 census. The city forms the core of the Grea ...
and
Tijuana
Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...
.
Asia
India
The 74th Amendment to the
Indian Constitution
The Constitution of India is the supreme legal document of India, and the longest written national constitution in the world. The document lays down the framework that demarcates fundamental political code, structure, procedures, powers, and ...
defines a
metropolitan area
A metropolitan area or metro is a region consisting of a densely populated urban area, urban agglomeration and its surrounding territories which share Industry (economics), industries, commercial areas, Transport infrastructure, transport network ...
as an area having a population of 10 Lakh or 1 Million or more, comprised in one or more districts and consisting of two or more Municipalities or Panchayats or other contiguous areas, specified by the Governor by public notification to be a Metropolitan area. As of
2011 Census of India,
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
has
46 other cities with populations greater than one million.
Delhi
Delhi, officially the National Capital Territory (NCT) of Delhi, is a city and a union territory of India containing New Delhi, the capital of India. Straddling the Yamuna river, but spread chiefly to the west, or beyond its Bank (geography ...
,
Mumbai
Mumbai ( ; ), also known as Bombay ( ; its official name until 1995), is the capital city of the Indian state of Maharashtra. Mumbai is the financial capital and the most populous city proper of India with an estimated population of 12 ...
,
Kolkata
Kolkata, also known as Calcutta ( its official name until 2001), is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, west of the border with Bangladesh. It is the primary ...
,
Chennai
Chennai, also known as Madras (List of renamed places in India#Tamil Nadu, its official name until 1996), is the capital city, capital and List of cities in Tamil Nadu by population, largest city of Tamil Nadu, the southernmost states and ...
,
Bangalore
Bengaluru, also known as Bangalore (List of renamed places in India#Karnataka, its official name until 1 November 2014), is the Capital city, capital and largest city of the southern States and union territories of India, Indian state of Kar ...
,
Hyderabad
Hyderabad is the capital and largest city of the Indian state of Telangana. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part of Southern India. With an average altitude of , much ...
,
Pune
Pune ( ; , ISO 15919, ISO: ), previously spelled in English as Poona (List of renamed Indian cities and states#Maharashtra, the official name until 1978), is a city in the state of Maharashtra in the Deccan Plateau, Deccan plateau in Western ...
,
Ahmedabad
Ahmedabad ( ), also spelled Amdavad (), is the most populous city in the Indian state of Gujarat. It is the administrative headquarters of the Ahmedabad district and the seat of the Gujarat High Court. Ahmedabad's population of 5,570,585 ...
,
Kochi
Kochi ( , ), List of renamed Indian cities and states#Kerala, formerly known as Cochin ( ), is a major port city along the Malabar Coast of India bordering the Laccadive Sea. It is part of the Ernakulam district, district of Ernakulam in the ...
, are among the largest of
23 metropolitan cities in India.
Japan
The Japanese legal term ''to'' (都) is by designation to be translated as "metropolis". However, existing translations predate the designation. Structured like a
prefecture
A prefecture (from the Latin word, "''praefectura"'') is an administrative jurisdiction traditionally governed by an appointed prefect. This can be a regional or local government subdivision in various countries, or a subdivision in certain inter ...
instead of a normal city, there is only one ''to'' in Japan, namely Tokyo. , Japan has
12 other cities with populations greater than one million. The same
Kanji
are logographic Chinese characters, adapted from Chinese family of scripts, Chinese script, used in the writing of Japanese language, Japanese. They were made a major part of the Japanese writing system during the time of Old Japanese and are ...
character in Chinese, or in generic Japanese (traditional or non-specific), translates variously—city, municipality, special municipality—all qualify.
Philippines

The Philippines has three metropolises as defined by the
National Economic and Development Authority. They are
Manila
Manila, officially the City of Manila, is the Capital of the Philippines, capital and second-most populous city of the Philippines after Quezon City, with a population of 1,846,513 people in 2020. Located on the eastern shore of Manila Bay on ...
,
Cebu
Cebu ( ; ), officially the Province of Cebu (; ), is a province of the Philippines located in the Central Visayas region, and consists of a main island and 167 surrounding islands and islets. The coastal zone of Cebu is identified as a ...
, and
Davao.
Greater Manila Area
The Greater Manila Area () is the contiguous urbanization region surrounding the Metro Manila, Metropolitan Manila area of the Philippines. This built-up zone includes Metro Manila and the neighboring provinces of Bulacan to the north, Cavite and ...
is the contiguous urbanization region or Extended Metropolitan Manila surrounding Metro Manila. This built-up zone includes
Metro Manila
Metropolitan Manila ( ), commonly shortened to Metro Manila and formally the National Capital Region (NCR; ), is the capital region and largest List of metropolitan areas in the Philippines, metropolitan area of the Philippines. Located ...
and the neighboring provinces of
Bulacan
Bulacan, officially the Province of Bulacan (; ; ; ), is a Provinces of the Philippines, province in the Philippines located in the Central Luzon Regions of the Philippines, region. Its capital is the city of Malolos. Bulacan was established on ...
to the north,
Cavite
Cavite, officially the Province of Cavite (; Chavacano: ''Provincia de Cavite''), is a Provinces of the Philippines, province of the Philippines located in the Calabarzon region. On the southern shores of Manila Bay and southwest of Manila, i ...
and
Laguna to the south, and
Rizal to the east. Though sprawl continues to absorb new zones, some urban zones are independent clusters of settlements surrounded by non-urban areas.
South Korea
In the South Korea, there are seven special and metropolitan cities at autonomous administrative levels. These are the most populous metropolitan areas in the country. In decreasing order of the population of 2015 census, they are
Seoul
Seoul, officially Seoul Special Metropolitan City, is the capital city, capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's List of cities b ...
,
Busan
Busan (), officially Busan Metropolitan City, is South Korea's second list of cities in South Korea by population, most populous city after Seoul, with a population of over 3.3 million as of 2024. Formerly romanized as Pusan, it is the economi ...
,
Incheon
Incheon is a city located in northwestern South Korea, bordering Seoul and Gyeonggi Province to the east. Inhabited since the Neolithic, Incheon was home to just 4,700 people when it became an international port in 1883. As of February 2020, ...
,
Daegu
Daegu (; ), formerly spelled Taegu and officially Daegu Metropolitan City (), is a city in southeastern South Korea. It is the third-largest urban agglomeration in South Korea after Seoul and Busan; the fourth-largest List of provincial-level ci ...
,
Daejeon
Daejeon (; ) is South Korea's list of cities in South Korea, fifth-largest metropolis, with a population of nearly 1.5 million. Located in a central lowland valley between the Sobaek Mountains and the Geum River, the city is known both as a ...
,
Gwangju
Gwangju (; ), formerly romanized as Kwangju, is South Korea's list of cities in South Korea, sixth-largest metropolis. It is a designated Special cities of South Korea, metropolitan city under the direct control of the central government's Home ...
and
Ulsan
Ulsan (; ), officially the Ulsan Metropolitan City, is South Korea's seventh-largest metropolitan city and the eighth-largest city overall, with a population of over 1.1 million inhabitants. It is located in the south-east of the country, neighbo ...
.
According to the census of 2015, cities of
Changwon
Changwon (; ) is the capital and largest city of South Gyeongsang Province, South Korea (with a population of 1,025,702 ), and the 11th largest city of the South Korea, country. A port city, Changwon is bordered by Masan Bay to the south, and the ...
and
Suwon
Suwon (; ) is the largest city and capital of Gyeonggi Province, South Korea's most populous province. The city lies approximately south of the national capital, Seoul. With a population of 1.2 million, Suwon has more inhabitants than Ulsan, tho ...
also qualify for being elevated to the level of metropolitan cities (having population over 1 million), but any future plans to promote them into metropolitan city are unlikely to be accepted because of political concerns about the
structure of administrative divisions. There are also some county-level cities with increasing population near 1 million, namely
Goyang
Goyang (; ) is a city in Gyeonggi Province in the north of South Korea. It is part of the Seoul Metropolitan Area, making Goyang one of Seoul's Satellite city, satellite cities. It is one of the largest cities in the Seoul Metropolitan Area, w ...
,
Yongin
Yongin (; ) is a city in the Seoul Metropolitan Area, the largest in Gyeonggi Province, South Korea. With a population over 1 million, the city has developed rapidly since the 21st century, recording the highest population growth of any city in th ...
, and
Seongnam, but they are also unlikely to be promoted into metropolitan city because they are all
satellite cities
A satellite city or satellite town is a smaller municipality or settlement that is part of (or on the edge of) a larger metropolitan area and serves as a regional population and employment center. It differs from mere suburbs, subdivisions a ...
of
Seoul
Seoul, officially Seoul Special Metropolitan City, is the capital city, capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's List of cities b ...
.
Europe
France
A 2014 law allowed any group of
communes to cooperate in a larger administrative division called a ''
métropole
A (; French for "metropolis") is an administrative entity in France, in which several communes cooperate, and which has the right to levy local tax, an ''établissement public de coopération intercommunale à fiscalité propre''. It is the mo ...
''. One métropole,
Lyon
Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...
, also has status as a
department.
France's national statistics institute,
Insee, designates 12 of the country's
urban areas as ''metropolitan areas''.
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
,
Lyon
Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...
and
Marseille
Marseille (; ; see #Name, below) is a city in southern France, the Prefectures in France, prefecture of the Departments of France, department of Bouches-du-Rhône and of the Provence-Alpes-Côte d'Azur Regions of France, region. Situated in the ...
are the biggest, the other nine being
Toulouse
Toulouse (, ; ; ) is a city in southern France, the Prefectures in France, prefecture of the Haute-Garonne department and of the Occitania (administrative region), Occitania region. The city is on the banks of the Garonne, River Garonne, from ...
,
Lille
Lille (, ; ; ; ; ) is a city in the northern part of France, within French Flanders. Positioned along the Deûle river, near France's border with Belgium, it is the capital of the Hauts-de-France Regions of France, region, the Prefectures in F ...
,
Bordeaux
Bordeaux ( ; ; Gascon language, Gascon ; ) is a city on the river Garonne in the Gironde Departments of France, department, southwestern France. A port city, it is the capital of the Nouvelle-Aquitaine region, as well as the Prefectures in F ...
,
Nice
Nice ( ; ) is a city in and the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly one million[Nantes
Nantes (, ; ; or ; ) is a city in the Loire-Atlantique department of France on the Loire, from the Atlantic Ocean, Atlantic coast. The city is the List of communes in France with over 20,000 inhabitants, sixth largest in France, with a pop ...]
,
Strasbourg
Strasbourg ( , ; ; ) is the Prefectures in France, prefecture and largest city of the Grand Est Regions of France, region of Geography of France, eastern France, in the historic region of Alsace. It is the prefecture of the Bas-Rhin Departmen ...
, Rennes, Grenoble and Montpellier.
Germany
The largest German city by administrative borders is Berlin, while Rhine-Ruhr is the largest metropolitan area (with more than 10 million people). The importance of a city is measured with three groups of indicators, also called metropolitan functions: The decision making and control function, the innovation and competition function, and the gateway function. These functions are seen as key domains for metropolitan regions in developing their performance.
In spatial planning, a metropolis is usually observed within its regional context, thus the focus is mainly set on the metropolitan regions. These regions can be mono central or multi central. Eleven metropolitan regions have been defined due to these indicators: Berlin Metropolitan Region, Berlin-Brandenburg, Bremen/Oldenburg Metropolitan Region, Bremen-Oldenburg, Central German Metropolitan Region, Dresden-Halle-Leipzig, Frankfurt/Rhine-Main Metropolitan Region, Frankfurt-Rhine-Main, Hamburg Metropolitan Region, Hamburg, Hannover-Braunschweig-Göttingen-Wolfsburg Metropolitan Region, Hannover-Braunschweig-Göttingen-Wolfsburg, Munich, Nuremberg Metropolitan Region, Nuremberg, Rhine-Neckar, Rhine-Ruhr Metropolitan Region, Rhine-Ruhr (with Cologne/Bonn Region, Cologne/Bonn), and Stuttgart Metropolitan Region, Stuttgart.
Italy
As of January 1, 2015, there are 14 "metropolitan cities" in Italy. Rome, Milan, Naples and other big cores have taken in urban zones from their surrounding areas and merged them into the new entities, which have been home for one out of three Italians. The Italian Provinces, provinces remained in the parts of the country not belonging to any ''Città Metropolitana''.
Poland
The ''Union of Polish metropolises'' (), established in 1990, is an organization of the largest cities in the country. Currently twelve cities are members of the organization, of which 11 have more than a quarter-million inhabitants. The largest metropolitan area in Poland, if ranked solely by the number of inhabitants, is the Katowice metropolitan area with around 3 million inhabitants (5 million inhabitants in the Katowice-Ostrava metropolitan area). The Metropolis GZM is an initiative of recent years attempting to unite Katowice urban area, the conurbation into one official urban unit. It is followed by Warsaw, with around 1.7 million inhabitants in the city proper and 3.1 million in the Warsaw metropolitan area. Other Polish metropolises are Kraków metropolitan area, Kraków, Łódź metropolitan area, Łódź, Wrocław metropolitan area, Wrocław, Poznań metropolitan area, Poznań, Tricity, Poland, Tricity, Szczecin metropolitan area, Szczecin and Bydgoszcz–Toruń metropolitan area, Bydgoszcz–Toruń.
Turkey

In Turkey the metropolitan cities are described as "büyükşehir". There are 30 metropolitan municipalities in Turkey now. The largest by far is Istanbul, followed by Ankara, İzmir and Bursa. Istanbul, the largest city in Europe in terms of population, has a population of over 15 million. The city has surpassed London and Dubai to become the List of cities by international visitors, most visited city in the world, with more than foreign visitors in 2023. This city, which played an important role in the spread of Christianity, is an important heritage for European culture.
United Kingdom

In the United Kingdom, the term ''the Metropolis'' was historically used to exclusively refer to the cities of London and Westminster, at the heart of what later became the Greater London Built-up Area. The term is retained by the Greater London police force, the Metropolitan Police (the "Met"), formed in 1829. The chief officer of the Metropolitan Police is formally known as the Commissioner of Police of the Metropolis.
The Metropolis Management Act 1855 created the Metropolitan Board of Works, covering an area now known as Inner London, and in 1889 this became the elected London County Council.
Since 1974, six
conurbation
A conurbation is a region consisting of a number of metropolises, cities, large towns, and other urban areas which, through population growth and physical expansion, have merged to form one continuous urban or industrially developed area. In most ...
s in England (outside London) have been known as metropolitan counties, each divided into metropolitan districts. These counties are South Yorkshire (centred on the city of Sheffield), the West Midlands conurbation, West Midlands (including Birmingham), West Yorkshire (including Leeds), Merseyside (including Liverpool), Greater Manchester and Tyne & Wear (including Newcastle-upon-Tyne). Greater Glasgow, South Hampshire, Greater Nottingham, Greater Bristol, Belfast metropolitan area, and Greater Leicester are also large conurbations with more than half a million citizens.
Sweden
In Sweden, the term ''metropolis'' has been used to exclusively refer to Stockholm or Greater Stockholm.
Oceania
Australia
The Australian Bureau of Statistics defines a metropolitan area as any statistical division or district with a population of more than 100,000. According to this definition, there are currently 19 metropolitan areas in Australia, including every state capital. By population, the largest metropolitan area is Sydney (urban area population at 2020 Census of 5,367,206) and the smallest is Bendigo (urban area population at 2020 Census of 100,632). Rapid urban growth in Victoria has seen the 'Manhattanization' of Melbourne, with high-rise clusters in South Yarra, Box Hill, Moonee Ponds and Footscray. The regional city of Geelong which is approximately 40 miles south west of Melbourne, has seen the emergence of high-rise office and apartment buildings in recent years. Geelong is the fastest growing regional city in Australia, and its growth will transform the Port Phillip region in a similar manner to San Francisco's Bay Area. (urban area population at 2020 Census of 160,991).
See also
* Megalopolis
* Metropole
* Metropolitan area
Other city types
* Global city
* Megacity
Lists
* List of largest cities
Planning theories
* New Urbanism
* Smart growth
* Transit-oriented development
Others
* C40 Cities Climate Leadership Group
* Ekistics
* Settlement hierarchy
* Sustainable city
References
Further reading
Census.gov United States Census Bureau, U.S. Census Bureau, ''About Metropolitan and Micropolitan Statistics''
MetroForum.com forum dedicated to discussions on metropolis
Blog.ar2com.de a podcast with a worldwide analysis of megacities (focus Latin America)
* : research group, university of Paris-Diderot, France
* See Ronald Daus´s bibliography, researcher at the Free University of Berlin
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Urban geography
Demographics
Lists of cities
Greek colonization
Urban areas
Settlement geography