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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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Hampden County ZIP Codes

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

County State ZIP Code City Area Codes
Hampden County MA 01028 East Longmeadow 413
Hampden County MA 01030 Feeding Hills 413, 860, 959
Hampden County MA 01034 Granville 413, 860, 959
Hampden County MA 01036 Hampden 413, 860, 959
Hampden County MA 01040 Holyoke 413
Hampden County MA 01041 Holyoke 413
Hampden County MA 01056 Ludlow 413
Hampden County MA 01057 Monson 413, 860, 959
Hampden County MA 01069 Palmer 413
Hampden County MA 01071 Russell 413
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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.