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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.

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Arlington County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in Arlington County.

County State ZIP Code City Area Codes
Arlington County VA 22229 Arlington 571
Arlington County VA 22230 Arlington 571
Arlington County VA 22234 Arlington 571
Arlington County VA 22240 Arlington 571
Arlington County VA 22241 Arlington 571
Arlington County VA 22242 Arlington 571
Arlington County VA 22243 Arlington 571
Arlington County VA 22244 Arlington 571
Arlington County VA 22245 Arlington 571
Arlington County VA 22246 Arlington 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.