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 66537 Scranton Osage County 785
KS 66538 Seneca Nemaha County 402, 531, 785
KS 66539 Silver Lake Shawnee County 785
KS 66540 Soldier Jackson County 785
KS 66541 Summerfield Marshall County 402, 531, 785
KS 66542 Tecumseh Shawnee County 785
KS 66543 Vassar Osage County 785
KS 66544 Vermillion Marshall County 785
KS 66546 Wakarusa Shawnee County 785
KS 66547 Wamego Pottawatomie County 785
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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.