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	46967	Onward	Cass County	`574`
IN	46968	Ora	Starke County	`574`
IN	46970	Peru	Miami County	`260, 574, 765`
IN	46971	Grissom Arb	Miami County	`765`
IN	46974	Roann	Wabash County	`260, 574, 765`
IN	46975	Rochester	Fulton County	`574`
IN	46977	Rockfield	Carroll County	`574`
IN	46978	Royal Center	Cass County	`574`
IN	46979	Russiaville	Howard County	`765`
IN	46980	Servia	Wabash County	`260`

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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.