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A ZIP Code (an acronym for Zone Improvement Plan) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address. Introduced on July 1, 1963, the basic format comprised five digits.
Each cell in this table contains a three-digit ZIP code prefix, the state where that ZIP code prefix is located, and the name of the United States Postal Service (USPS) Sectional Center Facility (SCF) that serves that ZIP code prefix, which may be in a different state.
The ANSI alphabetic state code is the same as the USPS state code except for U.S. Minor Outlying Islands, which have an ANSI code "UM" but no USPS code—and U.S. Military Mail locations, which have USPS codes ("AA", "AE", "AP") but no ANSI code. Postal codes. The United States Postal Service (USPS) has established a set of uppercase ...
Sectional center facility. A destination sectional center facility ( SCF) is a processing and distribution center (P&DC) of the United States Postal Service (USPS) that serves a designated geographical area defined by one or more three-digit ZIP Code prefixes. A sectional center facility routes mail between local post offices and to and from ...
The first digit is assigned regionally (for example, ZIP codes beginning with 9 are found in the western coastal states, Alaska, Hawaii, and islands in the Pacific), and ZIP codes with the same first three digits are served by the same USPS sorting facility (which sometimes serve multiple such groupings), so will be geographically clustered ...
A list of ZIP codes and the locations they represent are sourced from the United States Postal Service. The top five median household incomes from each ZIP code were sorted. All data was collected ...
ZCTAs are approximations of United States Postal Service (USPS) 5-digit ZIP Code service areas that the Census Bureau creates using census blocks to present statistical data from censuses and surveys. The ZCTA locale assignments are based on NCES locale boundaries and reflect the locale that accounts for the largest areal proportion of the ZCTA.
The FIPS state alpha code for each U.S. states and the District of Columbia are identical to the postal abbreviations by the United States Postal Service. From September 3, 1987, the same was true of the alpha code for each of the outlying areas, with the exception of U.S. Minor Outlying Islands (UM) as the USPS routes mail for these islands ...