![]() They have the same five-digit names as the Zip Codes they represent. Since people want Census data for Zip Codes, the Census Bureau created Zip Code Tabulation Areas (ZCTAs)-geographies that were designed to correspond with USPS Zip Codes, but with fewer geographical quirks, and are only changed once every ten years. So why do we need these Zip Code Tabulation Areas? PolicyMap uses Zip Code boundaries from Maponics. Since most people think of them as a type of geography, like a neighborhood, third-party companies have created maps of Zip Codes based on information from the USPS. Technically speaking, a Zip Code is not a geographic boundary, but a collection of delivery routes. Postal Service for efficient mail delivery, not for statistical data collection. Zip Code Tabulation Areas are a geographic entity made by the Census to approximate Zip Codes.Īs we’ve discussed previously, Zip Codes were designed by the U.S. What’s the difference between Zip Code Tabulation Areas and Zip Codes? Some datasets, like vacancy, tax returns, and home sales, are still reported at the Zip Code.If you’re making a table with ACS data, you should use ZCTAs.If you’re making a Community Profile or Rental Housing report, you should usually use ZCTAs rather than Zip Codes.ZCTAs are the Census’ version of Zip Codes, but they’re not always the same. ![]()
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