ZIP to County Lookup
Enter a ZIP code to instantly find its County and State.
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How to use this tool?
- Enter a valid 5-digit US ZIP Code in the search box.
- Click the "Find County" button.
- Instantly view the accurate County name and State.
- Results are verified against official USPS data.
Why verify County by ZIP?
- ✓ Real Estate: Determine property tax jurisdictions.
- ✓ Sales Tax: Verify county-level tax rates.
- ✓ Voting: Confirm voting districts and precincts.
Frequently Asked Questions
Can a ZIP code span multiple counties?
Yes, some ZIP codes cross county lines. Our tool displays the primary county associated with the ZIP code.
Is this data accurate for all US states?
Yes, we cover all 50 states, Puerto Rico, and other US territories using up-to-date location data.