A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only.
CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, edge cities, colonias located along the Mexico–United States border, and unincorporated
resort
A resort (North American English) is a self-contained commercial establishment that tries to provide most of a vacationer's wants, such as food, drink, swimming, lodging, sports, entertainment, and shopping, on the premises. The term ''resort ...
and retirement communities and their environs. The boundaries of any CDP may change from decade to decade, and the Census Bureau may de-establish a CDP after a period of study, then re-establish it some decades later. Most unincorporated areas within the United States are not and have not been included in any CDP.
The boundaries of a CDP have no legal status and may not always correspond with the local understanding of the area or community with the same name. However, criteria established for the 2010 Census require that a CDP name "be one that is recognized and used in daily communication by the residents of the community" (not "a name developed solely for planning or other purposes") and recommend that a CDP's boundaries be mapped based on the geographic extent associated with inhabitants' regular use of the named place. There is no provision, however, that this name recognition be unanimous for all residents, or that all residents use the community for which the CDP is named for services provided therein. There is no mandatory correlation between CDP names or boundaries and those established for other human purposes, such as post office names or zones, political precincts, or school districts.
The Census Bureau states that census-designated places are not considered incorporated places and that it includes only census-designated places in its city population list for Hawaii because that state has no incorporated cities. In addition, census city lists from 2007 included Arlington County, Virginia's CDP in the list with the incorporated places, but since 2010, only the Urban Honolulu CDP, Hawaii, representing the historic core of Honolulu, Hawaii, is shown in the city and town estimates.
History
The Census Bureau reported data for some unincorporated places as early as the first census, the 1790 Census (for example, Louisville, Kentucky which was not legally incorporated in Kentucky until 1828), though usage continued to develop through the
1890 Census
The United States census of 1890 was taken beginning June 2, 1890, but most of the 1890 census materials were destroyed in 1921 when a building caught fire and in the subsequent disposal of the remaining damaged records. It determined the reside ...
, in which the Census mixed unincorporated places with incorporated places in its products with "town" or "village" as its label. This made it confusing to determine which of the "towns" were or were not incorporated."Chapter 9 – Places" in ''Geographic Areas Reference Manual (GARM)'' United States Census Bureau. Accessed November 19, 2016.
The
1900
As of March 1 ( O.S. February 17), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 13 days until February 28 ( O.S. February 15), 2 ...
through
1930 Censuses
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 ''Ab urbe condit ...
did not report data for unincorporated places.
For the
1940 Census
The United States census of 1940, conducted by the Census Bureau, determined the resident population of the United States to be 132,164,569, an increase of 7.3 percent over the 1930 population of 122,775,046 people. The census date of record wa ...
, the Census Bureau compiled a separate report of unofficial, unincorporated communities of 500 or more people. The Census Bureau officially defined this category as "unincorporated places" in the 1950 Census and used that term through the 1970 Census. For the 1950 Census, these types of places were identified only outside " urbanized areas". In
1960
It is also known as the "Year of Africa" because of major events—particularly the independence of seventeen African nations—that focused global attention on the continent and intensified feelings of Pan-Africanism.
Events
January
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, the Census Bureau also identified unincorporated places inside urbanized areas (except in New England, whose political geography is based on the New England town, and is distinctly different from other areas of the U.S.), but with a population of at least 10,000. For the 1970 Census, the population threshold for "unincorporated places" in urbanized areas was reduced to 5,000.
For the
1980 Census
The United States census of 1980, conducted by the Census Bureau, determined the resident population of the United States to be 226,545,805, an increase of 11.4 percent over the 203,184,772 persons enumerated during the 1970 census. It was th ...
, the designation was changed to "census designated places" and the designation was made available for places inside urbanized areas in New England. For the 1990 Census, the population threshold for CDPs in urbanized areas was reduced to 2,500. From 1950 through 1990, the Census Bureau specified other population requirements for unincorporated places or CDPs in Alaska, Puerto Rico, island areas, and Native American reservations. Minimum population criteria for CDPs were dropped with the 2000 Census.U.S. Bureau of the Census Census Designated Place (CDP) Program for the 2010 Census — Proposed Criteria 72 ''Federal Register'' 17326-17329, April 6, 2007.
The Census Bureau's Participant Statistical Areas Program (PSAP) allows designated participants to review and suggest modifications to the boundaries for CDPs. The PSAP was to be offered to county and municipal planning agencies during 2008.
Effects of designation and examples
The boundaries of such places may be defined in cooperation with local or tribal officials, but are not fixed, and do not affect the status of local government or incorporation; the territories thus defined are strictly statistical entities. CDP boundaries may change from one census to the next to reflect changes in settlement patterns. Further, as statistical entities, the boundaries of the CDP may not correspond with local understanding of the area with the same name. Recognized communities may be divided into two or more CDPs while on the other hand, two or more communities may be combined into one CDP. A CDP may also cover the unincorporated part of a named community, where the rest lies within an incorporated place.
By defining an area as a CDP, that locality then appears in the same category of census data as incorporated places. This distinguishes CDPs from other census classifications, such as
minor civil division
A minor civil division (MCD) is a term used by the United States Census Bureau for primary governmental and/or administrative divisions of a county or county-equivalent, typically a municipal government such as a city, town, or civil township. MCD ...
s (MCDs), which are in a separate category.
The population and demographics of the CDP are included in the data of county subdivisions containing the CDP. Generally, a CDP shall not be defined within the boundaries of what the Census Bureau regards to be an incorporated city, village or borough. However, the Census Bureau considers some towns in New England states, New Jersey and
New York
New York most commonly refers to:
* New York City, the most populous city in the United States, located in the state of New York
* New York (state), a state in the northeastern United States
New York may also refer to:
Film and television
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as well as townships in some other states as MCDs, even though they are incorporated municipalities in those states. In such states, CDPs may be defined within such towns or spanning the boundaries of multiple towns.
Purpose of designation
There are a number of reasons for the CDP designation:
* The area may be more urban than its surroundings, having a concentration of population with a definite residential nucleus, such as Whitmore Lake, Michigan; Hershey, Pennsylvania;
Metairie, Louisiana
Metairie ( ) is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States, and is part of the New Orleans metropolitan area. With a population of 143,507 in 2020, Metairie is the largest community in Jefferson Parish and was (a ...
; and The Villages, Florida (the latter CDP covering only a portion of the overall community).
* A formerly incorporated place may disincorporate or be partly
annexed
Annexation (Latin ''ad'', to, and ''nexus'', joining), in international law, is the forcible acquisition of one state's territory by another state, usually following military occupation of the territory. It is generally held to be an illegal act ...
by a neighboring town, but the former town or a part of it may still be reported by the census as a CDP by meeting criteria for a CDP. Examples are the former village of Covedale (village in Ohio), compared with
Covedale (CDP), Ohio
Covedale is a census-designated place (CDP) in Green Township, Hamilton County, Ohio, United States. The population was 6,472 at the 2020 census. The CDP represents the part of the former village of Covedale that was not annexed by the city o ...
, or the former village of
Seneca Falls (CDP), New York
Seneca Falls is a hamlet and census-designated place in Seneca County, New York, United States.military bases (or parts of a military base) that are not within the limits of any existing community, such as
Notre Dame, Indiana
Notre Dame is a census-designated place and unincorporated community north of the city of South Bend in St. Joseph County, in the U.S. state of Indiana. It includes the campuses of three colleges: the University of Notre Dame, Saint Mary's Coll ...
Stanford University
Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...
campus),
Fort Campbell North, Kentucky
Fort Campbell North is a census-designated place (CDP) in Christian County, Kentucky, United States. It contains most of the housing for the Fort Campbell Army base within the Kentucky portion of the base. The population was 13,685 at the 2010 cen ...
, and Fort Leonard Wood, Missouri.
* In other cases, the boundary of an incorporated place may bisect a recognized community. An example of this is Bostonia, California, which straddles the city limits of El Cajon. The USGS places the nucleus of Bostonia within El Cajon. The Bostonia CDP covers the greater El Cajon area in unincorporated San Diego County that is generally north of that part of Bostonia within El Cajon.
* In some states, a CDP may be defined within an incorporated municipality that (for the purposes of the census) is regarded as a
minor civil division
A minor civil division (MCD) is a term used by the United States Census Bureau for primary governmental and/or administrative divisions of a county or county-equivalent, typically a municipal government such as a city, town, or civil township. MCD ...
. For example, all towns in New England are incorporated municipalities, but may also include both rural and urban areas. CDPs may be defined to describe urbanized areas within such municipalities, as in the case of North Amherst, Massachusetts.
* Hawaii is the only state that has no incorporated places recognized by the U.S. Census Bureau below the county level. All data for places in Hawaii reported by the census are CDPs.
* A few CDPs represent an aggregation of several nearby communities - for example,
Shorewood–Tower Hills–Harbert, Michigan
Shorewood–Tower Hills–Harbert is a census-designated place (CDP) composed of several small unincorporated communities in Chikaming Township of Berrien County in the U.S. state of Michigan. The population was 1,249 at the 2020 census. Th ...
, or Egypt Lake-Leto, Florida. However, the Census Bureau discontinued this method for most CDPs during the 2010 census.
* In rare cases, a CDP was also defined for the urbanized area surrounding an incorporated municipality, but which is outside the municipal boundaries, for example, Greater Galesburg, Michigan, or Greater Upper Marlboro, Maryland. This practice was discontinued in
2010
File:2010 Events Collage New.png, From top left, clockwise: The 2010 Chile earthquake was one of the strongest recorded in history; The Eruption of Eyjafjallajökull in Iceland disrupts air travel in Europe; A scene from the opening ceremony of ...
.
* In some states, the Census Bureau designates entire minor civil divisions (MCD) with an urban or suburban character as CDPs (for example West Bloomfield Township, Michigan, or Reading, Massachusetts). Such designations are used in states where the MCDs function with strong governmental authority and provide services equivalent to an incorporated municipality (New England, New York, New Jersey, Pennsylvania, Michigan, Minnesota, and Wisconsin). MCDs appear in a separate category in census data from places (i.e., incorporated places and CDPs); however, when MCDs strongly resemble incorporated places, CDPs coterminous with the MCDs are defined so that such places appear in both categories of census data.
Populated place
Population typically refers to the number of people in a single area, whether it be a city or town, region, country, continent, or the world. Governments typically quantify the size of the resident population within their jurisdiction using a ...