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Others are statistical areas, including Metropolitan Statistical Areas (MSA), census tracts, census block groups, and census blocks. ZIP Code Tabulation Areas (ZCTA) are quasi-statistical areas which attempt to approximate, but do not exactly match, the delivery areas of USPS ZIP codes. [1] ZIP codes are not truly areas, but rather a group of ...
Individual USPS ZIP codes can cross state, place, county, census tract, census block group and census block boundaries, so the Census Bureau asserts that "there is no correlation between ZIP codes and Census Bureau geography". [2] Moreover, the USPS frequently realigns, merges, or splits ZIP codes to meet changing needs.
A census tract, census area, census district or meshblock [1] is a geographic region defined for the purpose of taking a census. [2] Sometimes these coincide with the limits of cities , towns or other administrative areas [ 2 ] and several tracts commonly exist within a county.
There are generally two widely accepted versions of a postal code: a ZIP code and a ZIP + 4 code. Established in 1963, ZIP codes are the most common and recognizable postal code used by the USPS.
Address geocoding, or simply geocoding, is the process of taking a text-based description of a location, such as an address or the name of a place, and returning geographic coordinates, frequently latitude/longitude pair, to identify a location on the Earth's surface. [1]
An enlargeable map of the New England city and town areas (NECTAs) of the United States An enlargeable map of the 929 core-based statistical areas (CBSAs) of the United States and Puerto Rico. The 388 metropolitan statistical areas (MSAs) are shown in dark green. The 541 micropolitan statistical areas (μSAs) are shown in light green.
The purpose, rather than to standardize state abbreviations per se, was to make room in a line of no more than 23 characters for the city, the state, and the ZIP code. [4] Since 1963, only one state abbreviation has changed.
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.