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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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Chester County ZIP Codes

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

County State ZIP Code City Area Codes
Chester County PA 19425 Chester Springs 484, 610, 835
Chester County PA 19432 Devault 484, 610, 835
Chester County PA 19442 Kimberton 484, 610, 835
Chester County PA 19457 Parker Ford 484, 610, 835
Chester County PA 19460 Phoenixville 484, 610, 835
Chester County PA 19465 Pottstown 484, 610, 835
Chester County PA 19470 Saint Peters 484, 610, 835
Chester County PA 19475 Spring City 484, 610, 835
Chester County PA 19480 Uwchland 484
Chester County PA 19520 Elverson 484, 610, 835
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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.