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

Indiana ZIP Codes

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

State ZIP Code City County Area Codes
IN 47848 Dugger Sullivan County 812, 930
IN 47849 Fairbanks Sullivan County 217, 447, 812, 930
IN 47850 Farmersburg Sullivan County 812, 930
IN 47851 Fontanet Vigo County 812, 930
IN 47852 Graysville Sullivan County 812
IN 47853 Harmony Clay County 812, 930
IN 47854 Hillsdale Vermillion County 765
IN 47855 Hymera Sullivan County 812, 930
IN 47856 Judson Parke County 765
IN 47857 Knightsville Clay County 812, 930
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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.