ZipLookup

US ZIP Code Lookup

Instant demographics, maps, and data for any of the 42,000+ US ZIP codes.

Try: 10001, 90210, 98074, Chicago, Texas

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What's in a ZIP Code?

ZIP codes — Zone Improvement Plan codes — were introduced by the US Postal Service in 1963 to streamline mail sorting and delivery. Each of the 42,000+ codes maps to a specific geographic area, from dense urban neighborhoods to rural routes spanning hundreds of square miles. Beyond delivery, ZIP codes serve as a key building block for demographic research, business analytics, and public policy. Every ZipLookup page surfaces the city, county, state, timezone, area code, congressional district, and an estimated demographic profile including population, median household income, home values, and race & ethnicity breakdown. Use the radius search to discover neighboring codes, or explore the rankings to compare ZIP codes by wealth, population, or home values across the entire country.