U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

42,735 verified records
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Virginia ZIP Codes

Complete postal directory, details, and geographic map for the State of Virginia.

State ZIP Code City County Area Codes
VA 20163 Sterling Loudoun County 571, 703
VA 20164 Sterling Loudoun County 571, 703
VA 20165 Sterling Loudoun County 227, 240, 301, 571, 703
VA 20166 Sterling Loudoun County 571, 703
VA 20167 Sterling Loudoun County 571
VA 20168 Haymarket Prince William County 571
VA 20169 Haymarket Prince William County 540, 571, 703, 826
VA 20170 Herndon Fairfax County 571, 703
VA 20171 Herndon Fairfax County 571, 703
VA 20172 Herndon Fairfax County 571
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.