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ZIP codes in Washington County, Ohio

Washington County, Ohio has 20 ZIP codes in this list, from 45712 to 45789. They cover 20 places, among them Barlow, Bartlett, Belpre and Beverly.

ZIP codePlaceLand area (sq mi)Map point
45712Barlowno area39.399, -81.665
45713Bartlettno area39.419, -81.816
45714Belpre35.839.287, -81.597
45715Beverly41.939.571, -81.635
45721Coal Run0.039.568, -81.581
45724Cutler54.239.404, -81.766
45729Fleming26.139.414, -81.608
45742Little Hocking26.639.280, -81.707
45744Lowell56.139.538, -81.520
45745Lower Salem72.639.561, -81.397
45746Macksburg17.339.620, -81.447
45750Marietta10739.428, -81.464
45767New Matamoras11239.529, -81.094
45768Newport31.239.397, -81.240
45773Reno12.339.459, -81.267
45784Vincent37.739.337, -81.674
45786Waterford63.339.516, -81.656
45787Watertownno area39.466, -81.633
45788Whipple32.439.514, -81.367
45789Wingett Run14.039.543, -81.284

The ZIP code areas of Washington County add up to about 740 square miles of land (1,916 sq km) as the Census Bureau draws them. The largest is 45767 (New Matamoras), with 112 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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