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  2. Census block group - Wikipedia

    en.wikipedia.org/wiki/Census_block_group

    A Census Block Group is a geographical unit used by the United States Census Bureau which is between the Census Tract and the Census Block.It is the smallest geographical unit for which the bureau publishes sample data, i.e. data which is only collected from a fraction of all households.

  3. FIPS county code - Wikipedia

    en.wikipedia.org/wiki/FIPS_county_code

    The Federal Information Processing Standard Publication 6-4 (FIPS 6-4) is a five-digit Federal Information Processing Standards code which uniquely identified counties and county equivalents in the United States, certain U.S. possessions, and certain freely associated states.

  4. Section (United States land surveying) - Wikipedia

    en.wikipedia.org/wiki/Section_(United_States...

    The legal description of a tract of land under the PLSS includes the name of the state, name of the county, township number, range number, section number, and portion of a section. Sections are customarily surveyed into smaller squares by repeated halving and quartering. A quarter section is 160 acres (65 ha) and a "quarter-quarter section" is ...

  5. Tract index - Wikipedia

    en.wikipedia.org/wiki/Tract_index

    The number of sections within a jurisdiction dictates how many volumes are needed for a single period. In comparison to the atlas (also called a plat map or cadastral map ), which is a graphic representation of land ownership in a township for the date of publication, the tract index is relatively dynamic. [ 2 ]

  6. Lot and block survey system - Wikipedia

    en.wikipedia.org/wiki/Lot_and_block_survey_system

    a reference to find the cited plat map (e.g., a page and/or volume number), and a description of the map's place of official recording (e.g., recorded in the files of the County Engineer ). The legal description of a 2.5-acre (10,000 m 2 ) property under the Lot and Block system may be something like; Lot 5 of Block 2 of the South Subdivision ...

  7. ZIP Code Tabulation Area - Wikipedia

    en.wikipedia.org/wiki/ZIP_Code_Tabulation_Area

    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.

  8. United States National Grid - Wikipedia

    en.wikipedia.org/wiki/United_States_National_Grid

    A strategically assigned asset identifier can include location information, thereby assuring both that the name is unique and that the location of the asset is always known. [64] The USNG offers a method to locate any place or any object in the world with a brief alphanumeric code, which can be shortened depending on the known service area, and ...

  9. Address geocoding - Wikipedia

    en.wikipedia.org/wiki/Address_geocoding

    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]