Census-designated place




A census-designated place (CDP)[1][2][3] 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,[4] 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 small 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, colonias located along the U.S. border with Mexico, and unincorporated resort and retirement communities and their environs.[5]


The boundaries of a CDP have no legal status.[1] Thus, they 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.[5]


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.[6] In addition, census city lists from 2007 included Arlington County, Virginia's CDP in the list with the incorporated places,[7] but since 2010, only the Urban Honolulu CDP, Hawaii representing the historic core of Honolulu, Hawaii, is shown in the city and town estimates.




Contents






  • 1 History


  • 2 Effects of designation and examples


  • 3 Purpose of designation


  • 4 See also


  • 5 Notes


  • 6 References





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, in which, the Census mixed unincorporated places with incorporated places in its products with "town" or "village" as its label.[2] This made it confusing to determine which of the "towns" were or were not incorporated.[2]


The 1900 through 1930 Censuses did not report data for unincorporated places.[2]


For the 1940 Census, the Census Bureau compiled a separate report of unofficial, unincorporated communities of 500 or more people.[2] The Census Bureau officially defined this category as "unincorporated places" in the 1950 Census and used that term through the 1970 Census.[2] For the 1950 Census, these types of places were identified only outside "urbanized areas".[2] In 1960, the Census Bureau also identified unincorporated places inside urbanized areas (except in New England), but with a population of at least 10,000.[2] For the 1970 Census, the population threshold for "unincorporated places" in urbanized areas was reduced to 5,000.[2]


For the 1980 Census, the designation was changed to "census designated places"[2] and the designation was made available for places inside urbanized areas in New England.[2] For the 1990 Census, the population threshold for CDPs in urbanized areas was reduced to 2,500.[2] 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.[3][5]


The Census Bureau's Participant Statistical Areas Program (PSAP) allows designated participants to review and suggest modifications to the boundaries for CDPs.[8] 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.[1][2] 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 divisions (MCDs), which are in a separate category.[2]


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.[2] However, the Census Bureau considers some towns in New England states, New Jersey and New York 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.[2]



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; 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 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 or the recently disincorporated village of Seneca Falls (CDP), New York.

  • The area may contain an easily recognizable institution, usually occupying a large land area, with an identity distinct from the surrounding community. This could apply to some college campuses & large military bases (or parts of a military base) that are not within the limits of any existing community, such as Notre Dame, Indiana, Stanford, California (which houses the Stanford University campus), Fort Campbell North, Kentucky and Fort Leonard Wood, Missouri.[2]

  • 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. 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.[2]

  • Few CDPs represent an aggregation of several nearby communities, for example Shorewood-Tower Hills-Harbert, Michigan or Egypt Lake-Leto, Florida. However, the Census Bureau has discontinued this method for most CDPs during the 2010 Census.[5]

  • 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.[5]

  • In some states, the Census Bureau would designate an entire minor civil division (MCD) as a CDP (for example West Bloomfield Township, Michigan or Reading, Massachusetts). Such designations were used in states where the MCDs function with strong governmental authority and provide services equivalent to an incorporated municipality (New England, the Middle Atlantic States, Michigan, and Wisconsin). MCDs appear in a separate category in census data from places (i.e., incorporated places and CDPs); however, such MCDs strongly resemble incorporated places, and so CDPs coterminous with the MCDs were defined so that such places appear in both categories of census data. This practice was also discontinued in most states in 2010.[5]



See also




  • Census county division


  • Designated place, a counterpart in the Canadian census

  • Incorporated place


  • Populated place, used by the United States Board on Geographic Names

  • ZIP Code Tabulation Area



Notes





  1. ^ abc "Geographic Terms and Concepts – Place". United States Census Bureau. Retrieved December 11, 2014..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ abcdefghijklmnopqr "Chapter 9 – Places" in Geographic Areas Reference Manual (GARM), United States Census Bureau. Accessed November 19, 2016.


  3. ^ ab 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.


  4. ^ "Glossary". American FactFinder. U.S. Census Bureau. Retrieved December 11, 2014.


  5. ^ abcdef "Census Designated Place (CDP) Program for the 2010 Census – Final Criteria" (PDF). Federal Register (Volume 73, Number 30). February 13, 2008. Retrieved March 31, 2016.


  6. ^ "Cities with 100,000 or More Population in 2000 ranked by Population per Square Mile, 2000 in Alphabetic Order". United States Census Bureau, Population Division. 2008-07-10. Retrieved 2008-07-13.


  7. ^ "Annual Estimates of the Population for Incorporated Places in Virginia". United States Census Bureau. Archived from the original on 2007-11-05. Retrieved 2008-09-11.


  8. ^ "Participant Statistical Areas Program (PSAP)". United States Census Bureau. Archived from the original on September 29, 2006. Retrieved March 9, 2008.




References



  • U.S. Census Bureau, Geography Division, "Cartographic Boundary Shapefiles – Places (Incorporated Places and Census Designated Places)". Cartographic Operations Branch, December 11, 2014.

  • U.S. Census Bureau,""Census 2000 Statistical Areas Boundary Criteria"". Archived from the original on 2012-11-15. Retrieved 2009-04-08.CS1 maint: BOT: original-url status unknown (link) , Census Designated Places (CDPs) – Census 2000 Criteria.

  • U.S. Census Bureau, Geographic Areas Reference Manual, United States Department of Commerce.










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