FAQ

Frequently asked questions.

Short, sourced answers on mapping ZIP codes to city, county, FIPS, and coordinates — with the exact column names, from lists compiled from U.S. Census, HUD, and Interior data.

FAQ · 7 Q&As

ZIP codes, cities, coordinates, and FIPS — quick answers

Short, exact answers to the questions people ask before they download a location List. Each one names the columns you get and links to the tool or List that answers it in bulk.

Read the FAQ →7 Q&As

Still deciding? Start with the free Basic City List — every U.S. city with its FIPS keys.

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