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ZIP codes in Clinton County, Ohio

Clinton County, Ohio has 10 ZIP codes in this list, from 45107 to 45177. They cover 10 places, among them Blanchester, Clarksville, Cuba and Martinsville.

ZIP codePlaceLand area (sq mi)Map point
45107Blanchester80.639.303, -83.974
45113Clarksville37.739.404, -83.959
45114Cubano area39.357, -83.857
45146Martinsville25.939.313, -83.800
45148Midland24.239.292, -83.893
45159New Vienna54.539.332, -83.688
45164Port William0.239.551, -83.788
45166Reesville0.739.480, -83.677
45169Sabina93.739.490, -83.650
45177Wilmington17039.449, -83.842

The ZIP code areas of Clinton County add up to about 488 square miles of land (1,263 sq km) as the Census Bureau draws them. The largest is 45177 (Wilmington), with 170 square miles.

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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