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What is the difference between a ZIP Code and a ZIP Code Tabulation Area (ZCTA)?

April 26, 2017area code tabulation zcta Zip

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What is the difference between a ZIP Code and a ZIP Code Tabulation Area (ZCTA)?

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The results from Census 2000 include ZIP Code Tabulation Areas (ZCTAs), which are approximations of ZIP Codes that follow census block boundaries. A ZCTA is established by taking a census block and determining which ZIP Code occurs most frequently within that census block. It is assigned a three digit and five digit ZCTA based on this information. American FactFinder has data at the three-digit and five-digit ZCTA level for standard residential ZIP Codes. For a detailed explanation of ZIP Code Tabulation Areas, visit http://www.census.gov/geo/ZCTA/zcta.html.