![]() Use any census data provider to get ZCTA data:, Census Reporter, Missouri Census Data Center, NHGIS, or proprietary library databases like PolicyMap or the Social Explorer. The short story is: you can get boundary files and census data from the decennial census and 5-year American Community Survey (ACS) for ZIP Code Tabulation Areas (ZCTAs, pronounced zicktas) which are approximations of ZIP Codes that have delivery areas. In this post I’ll summarize these challenges and provide some solutions. However, there are a number of challenges associated with using ZIP Codes as a unit of analysis that most people are unaware of (until they start using them). ZIP Codes are commonly used for summarizing address data, as it’s easy to do and most Americans are familiar with them. Since the COVID-19 pandemic began, I’ve received several questions about finding census data and boundary files for ZIP Codes (aka US postal codes), as many states are publishing ZIP Code-level data for cases and deaths. ![]()
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