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ZIP codes in Butler County, Ohio

Butler County, Ohio has 21 ZIP codes in this list, from 45003 to 45071. They cover 15 places, among them Hamilton, Fairfield, Middletown and West Chester.

ZIP codePlaceLand area (sq mi)Map point
45003College Corner15.239.575, -84.805
45004Collinsvilleno area39.515, -84.609
45011Hamilton60.439.406, -84.522
45012Hamiltonno area39.441, -84.576
45013Hamilton11839.436, -84.618
45014Fairfield22.639.327, -84.548
45015Hamilton5.639.349, -84.538
45018Fairfieldno area39.441, -84.576
45042Middletown49.239.532, -84.390
45044Middletown37.839.515, -84.398
45050Monroe8.439.441, -84.365
45053Okeana27.239.354, -84.776
45055Overpeck0.239.452, -84.515
45056Oxford74.739.507, -84.745
45061Rossno area39.312, -84.648
45062Seven Mile0.839.479, -84.551
45063Shandonno area39.326, -84.712
45064Somerville32.139.555, -84.622
45067Trenton19.639.480, -84.460
45069West Chester29.039.340, -84.400
45071West Chesterno area39.332, -84.407

The ZIP code areas of Butler County add up to about 500 square miles of land (1,296 sq km) as the Census Bureau draws them. The largest is 45013 (Hamilton), with 118 square miles.

Places with more than one code here: Hamilton (4 codes), Fairfield (2 codes), Middletown (2 codes).

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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