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 46031 Atlanta Hamilton County 317, 463, 765, 812, 930
IN 46032 Carmel Hamilton County 317, 463
IN 46033 Carmel Hamilton County 317, 463
IN 46034 Cicero Hamilton County 317, 463, 765
IN 46035 Colfax Clinton County 765
IN 46036 Elwood Madison County 765, 812, 930
IN 46037 Fishers Hamilton County 317, 463
IN 46038 Fishers Hamilton County 317, 463
IN 46039 Forest Clinton County 765
IN 46040 Fortville Hamilton County 317, 463, 765
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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.