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22-504: Allison Park is a census-designated place in Allegheny County, Pennsylvania , United States. It is a suburb of Pittsburgh and is located within Hampton , McCandless , Shaler , Indiana and West Deer townships. It had a population of 21,864 at the 2020 census . The ZIP Code for Allison Park is 15101. Allison Park in the 18th century was called Tally Cavey. Tally Cavey was part of

44-421: 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

66-455: 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 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

88-643: The 1890 Census , 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. The 1900 through 1930 Censuses did not report data for unincorporated places. For the 1940 Census , 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

110-455: 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 , 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

132-607: The District of Maine , New Hampshire , New Jersey , New York , North Carolina , Pennsylvania , Rhode Island , South Carolina , and Virginia ), and from the Southwest Territory . The census was not conducted in Vermont until 1791, after that state's admission to the Union as the 14th state on March 4 of that year. (From 1777 until early 1791, and hence during all of 1790, Vermont

154-495: The Hampton Township School District , North Allegheny School District Shaler Area School District , and Deer Lakes School District with students attending the schools for the respective municipality they reside in. Census-designated place 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

176-519: The Mexico–United States border , and unincorporated 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

198-527: The 1840 census. "The law required that every household be visited, that completed census schedules be posted in 'two of the most public places within [each jurisdiction], there to remain for the inspection of all concerned...' and that 'the aggregate amount of each description of persons' for every district be transmitted to the president ." The census was published in 1791. It was 56 pages and cost $ 44,377.28. Both Secretary of State Thomas Jefferson and President George Washington expressed skepticism over

220-487: 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. There are a number of reasons for the CDP designation: 1790 United States Census The 1790 United States census

242-484: The boundaries for CDPs. The PSAP was to be offered to county and municipal planning agencies during 2008. 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,

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264-419: 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

286-593: The first census. No microdata from the 1790 population census are available, but aggregate data for small areas, together with compatible cartographic boundary files, can be downloaded from the National Historical Geographic Information System . Under the direction of the Secretary of State Thomas Jefferson , marshals collected data from all thirteen states ( Connecticut , Delaware , Georgia , Maryland , Massachusetts including

308-788: 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

330-584: The large Pitt Township . The word Talley Cavey is Irish Gaelic for "hill over the borough". Early Irish settlers named it after Tullycavy on the Ards Peninsula outside Greyabbey , County Down , now in Northern Ireland . The town started in the woods that are now along Mt. Royal Boulevard, and continued until it reached what is now the Pennsylvania Turnpike . Allison Park is divided amongst

352-543: 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. The Census Bureau reported data for some unincorporated places as early as the first census in 1790 (for example, Louisville, Kentucky , which was not legally incorporated in Kentucky until 1828), though usage continued to develop through

374-403: The original census data have been lost or destroyed since their original documentation. These include some 1790 data from Connecticut , Maine , Maryland , Massachusetts , New Hampshire , New York , North Carolina , Pennsylvania , Rhode Island , South Carolina , and Vermont ; the validity and existence of most of these data, though, can be confirmed in many secondary sources pertaining to

396-412: 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

418-517: The results, believing that the true population had been undercounted. If indeed an undercount was the result, possible explanations for it include dispersed population, poor transportation links, limitations of contemporary technology, and individual refusal to participate. Although the census was proved statistically factual, based on data collected, the records for several states (including Delaware , Georgia , New Jersey , and Virginia ) were lost sometime between 1790 and 1830. Almost one-third of

440-457: 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. 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,

462-477: 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 . The Census Bureau's Participant Statistical Areas Program (PSAP) allows designated participants to review and suggest modifications to

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484-564: Was the first United States census . It recorded the population of the whole United States as of Census Day, August 2, 1790, as mandated by Article 1, Section 2, of the Constitution and applicable laws. In the first census, the population of the United States was enumerated to be 3,929,214 inhabitants. Congress assigned responsibility for the 1790 census to the marshals of United States judicial districts under an act, which with minor modifications and extensions, governed census taking through

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