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U.S. ZIP Codes Database 2026

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Nemaha County ZIP Codes

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

County State ZIP Code City Area Codes
Nemaha County KS 66404 Baileyville 785
Nemaha County KS 66408 Bern 402, 531, 785
Nemaha County KS 66415 Centralia 785
Nemaha County KS 66417 Corning 785
Nemaha County KS 66428 Goff 785
Nemaha County KS 66522 Oneida 785
Nemaha County KS 66534 Sabetha 402, 531, 785
Nemaha County KS 66538 Seneca 402, 531, 785
Nemaha County KS 66550 Wetmore 785
Nemaha County NE 68305 Auburn 402, 531
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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.