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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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Dutchess County ZIP Codes

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

County State ZIP Code City Area Codes
Dutchess County NY 12524 Fishkill 845
Dutchess County NY 12527 Glenham 845
Dutchess County NY 12531 Holmes 845
Dutchess County NY 12533 Hopewell Junction 845
Dutchess County NY 12537 Hughsonville 845
Dutchess County NY 12538 Hyde Park 845
Dutchess County NY 12540 Lagrangeville 845
Dutchess County NY 12545 Millbrook 845
Dutchess County NY 12546 Millerton 518, 838, 845, 860, 959
Dutchess County NY 12564 Pawling 845, 860, 959
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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.