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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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Oneida County ZIP Codes

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

County State ZIP Code City Area Codes
Oneida County NY 13338 Forestport 315, 518, 680, 838
Oneida County NY 13341 Franklin Springs 315
Oneida County NY 13352 Hinckley 315, 680
Oneida County NY 13354 Holland Patent 315, 680
Oneida County NY 13362 Knoxboro 315
Oneida County NY 13363 Lee Center 315, 680
Oneida County NY 13401 Mc Connellsville 315
Oneida County NY 13403 Marcy 315, 680
Oneida County NY 13413 New Hartford 315, 680
Oneida County NY 13417 New York Mills 315, 680
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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.