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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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Leavenworth County ZIP Codes

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

County State ZIP Code City Area Codes
Leavenworth County KS 66007 Basehor 913
Leavenworth County KS 66020 Easton 913
Leavenworth County KS 66027 Fort Leavenworth 816, 913
Leavenworth County KS 66043 Lansing 913
Leavenworth County KS 66048 Leavenworth 816, 913
Leavenworth County KS 66052 Linwood 785, 913
Leavenworth County KS 66086 Tonganoxie 785, 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.