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  2. Topologically Integrated Geographic Encoding and Referencing

    en.wikipedia.org/wiki/Topologically_Integrated...

    ZIP codes are not truly areas, but rather a group of deliverable addresses. [2] Some or all of an existing ZIP code's addresses may be reassigned to a new ZIP if there is sufficient growth within a given postal ZIP Code. As many as 3% of ZIP codes undergo change each quarter. Thus, the 5-digit ZCTAs are of limited value in areas of growth or ...

  3. 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.

  4. Shapefile - Wikipedia

    en.wikipedia.org/wiki/Shapefile

    The shapefile format is a digital vector storage format for storing geographic location and associated attribute information. This format lacks the capacity to store topological information. The shapefile format was introduced with ArcView GIS version 2 in the early 1990s. It is now possible to read and write geographical datasets using the ...

  5. This Is What Your ZIP Code Actually Means - AOL

    www.aol.com/zip-code-actually-means-235400396.html

    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.

  6. 7 Most Expensive California ZIP Codes — And 6 Affordable ...

    www.aol.com/7-most-expensive-california-zip...

    Where are the most expensive ZIP codes in the United States? Home Bay ranked the 10 most expensive U.S. ZIP codes and findings revealed seven ZIP codes are in California. Read: 5 Expensive ...

  7. Global Administrative Unit Layers - Wikipedia

    en.wikipedia.org/wiki/Global_Administrative_Unit...

    The GAUL always maintains global geographic layers (in shapefile format) with a unified coding system at the levels of country, first administrative (e.g. regions), and second administrative (e.g. districts). In addition, when data is available, it provides layers on a country-by-country basis down to third, fourth and lower levels.

  8. Guadalupe, California - Wikipedia

    en.wikipedia.org/wiki/Guadalupe,_California

    There were 1,414 households, out of which 53.8% had children under the age of 18 living with them, 62.8% were married couples living together, 16.9% had a female householder with no husband present, and 13.9% were non-families. 11.2% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or ...

  9. Martell, California - Wikipedia

    en.wikipedia.org/wiki/Martell,_California

    It is located 1.5 miles (2.4 km) northwest of Jackson, [4] at an elevation of 1486 feet (453 m). The population was 282 at the 2010 census. The population was 282 at the 2010 census. Martell is located west of Jackson and east of Ione , by which it is connected by the Amador Central Railroad .