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 66053 Louisburg Miami County 816, 913
KS 66054 Mc Louth Jefferson County 785, 913
KS 66056 Mound City Linn County 913
KS 66058 Muscotah Atchison County 785, 913
KS 66060 Nortonville Jefferson County 785, 913
KS 66061 Olathe Johnson County 913
KS 66062 Olathe Johnson County 913
KS 66063 Olathe Johnson County 913
KS 66064 Osawatomie Miami County 785, 913
KS 66066 Oskaloosa Jefferson County 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.