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
All states and U.S. territories
Maps and coordinates

Structured Postal Records

Find ZIP, city, county, state, timezone, area code, and coordinate details in one consistent view.

Map-Ready Lookup

Detail pages pair postal data with embedded maps for quick geographic orientation.

Browse by Region

Move through states, territories, counties, cities, and individual ZIP code records without losing context.

Directory

Browse ZIP Codes by State

Select a state or U.S. territory to view its ZIP code records, cities, counties, area codes, and map.

Postal context

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.