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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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Schenectady County ZIP Codes

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

County State ZIP Code City Area Codes
Schenectady County NY 12305 Schenectady 518, 838
Schenectady County NY 12306 Schenectady 518, 838
Schenectady County NY 12307 Schenectady 518, 838
Schenectady County NY 12308 Schenectady 518, 838
Schenectady County NY 12309 Schenectady 518, 838
Schenectady County NY 12325 Schenectady 518
Schenectady County NY 12345 Schenectady 518
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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.