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
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State directory

New Hampshire ZIP Codes

Complete postal directory, details, and geographic map for the State of New Hampshire.

State ZIP Code City County Area Codes
NH 03462 Spofford Cheshire County 603
NH 03464 Stoddard Cheshire County 603
NH 03465 Troy Cheshire County 603
NH 03466 West Chesterfield Cheshire County 603, 802
NH 03467 Westmoreland Cheshire County 603, 802
NH 03468 West Peterborough Hillsborough County 603
NH 03469 West Swanzey Cheshire County 603
NH 03470 Winchester Cheshire County 351, 413, 603, 978
NH 03561 Littleton Grafton County 603, 802
NH 03570 Berlin Coos County 207, 603
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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.