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

Kansas ZIP Codes

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

State ZIP Code City County Area Codes
KS 66017 Denton Doniphan County 785, 913
KS 66018 De Soto Johnson County 785, 913
KS 66019 Clearview City Johnson County 913
KS 66020 Easton Leavenworth County 913
KS 66021 Edgerton Johnson County 785, 913
KS 66023 Effingham Atchison County 785, 913
KS 66024 Elwood Doniphan County 785, 816, 913
KS 66025 Eudora Douglas County 785, 913
KS 66026 Fontana Miami County 913
KS 66027 Fort Leavenworth Leavenworth County 816, 913
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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.