1 Credit per Lookup

Select a State and Select a County

Use the ZIP Codes by County lookup to search the ZIP Codes within a county. Find the corresponding city names, percent of addresses in county and links to ZIP Code Maps.

  • Includes 50 U.S. states, Puerto Rico, Guam, American Samoa and Micronesia.
  • Learn to use our ZIP Codes by County in just 1 minute. Watch the tutorial now
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