⚠ Starting May 1, 2026, automatic monthly credits top-offs will require account verification. If you’ve already completed verification, your monthly top-off will continue without interruption. Verify your account to keep your credits automatically topped off each month.

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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Contact Email: tech@melissadata.com,    Telephone: 1-800-635-4772