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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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Oswego County ZIP Codes

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

County State ZIP Code City Area Codes
Oswego County NY 13028 Bernhards Bay 315, 680
Oswego County NY 13036 Central Square 315, 680
Oswego County NY 13044 Constantia 315, 680
Oswego County NY 13069 Fulton 315, 680
Oswego County NY 13074 Hannibal 315, 680
Oswego County NY 13076 Hastings 315, 680
Oswego County NY 13083 Lacona 315, 680
Oswego County NY 13093 Lycoming 315
Oswego County NY 13103 Mallory 315, 680
Oswego County NY 13107 Maple View 315
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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.