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
All states and U.S. territories
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State directory

Indiana ZIP Codes

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

State ZIP Code City County Area Codes
IN 47228 Cortland Jackson County 812
IN 47229 Crothersville Jackson County 812, 930
IN 47230 Deputy Jefferson County 812, 930
IN 47231 Dupont Jefferson County 812, 930
IN 47232 Elizabethtown Bartholomew County 812, 930
IN 47234 Flat Rock Shelby County 765, 812, 930
IN 47235 Freetown Jackson County 812, 930
IN 47236 Grammer Bartholomew County 812, 930
IN 47240 Greensburg Decatur County 765, 812, 930
IN 47243 Hanover Jefferson County 502, 812, 930
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Geographic Map of Indiana

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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.