Washington County, OH ZIP codes
Washington County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Washington County ZIP codes
The ZIP codes of Washington County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Washington County in numbers
About 58,978 people live in Washington County, in 24,779 households, the 43rd most populous of Ohio's 88 counties. The median household income is $63,603 a year, 11% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $185,600 (14% below the Ohio median), and median gross rent is $852 a month. The median age is 44.0; 21.9% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 24 minutes.
| Population | 58,978 |
|---|---|
| Households | 24,779 |
| Median age | 44.0 |
| Median household income | $63,603 |
| Median home value | $185,600 |
| Median gross rent | $852 |
| Bachelor's degree or higher | 21.9% |
| Mean commute | 23.5 min |
| Population density | 93 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Washington County
| Town | ZIP codes | Population |
|---|---|---|
| Marietta | 1 | 13,203 |
| Belpre | 1 | 6,654 |
| New Matamoras | 1 | 2,428 |
| Fleming | 1 | 2,121 |
| Cutler | 1 | 1,218 |
| Reno | 1 | 1,040 |
| Whipple | 1 | 691 |
| Lowell | 1 | 556 |
| Waterford | 1 | 395 |
| Wingett Run | 1 | 280 |
| Little Hocking | 1 | 167 |
| Vincent | 1 | 139 |
| Macksburg | 1 | 125 |
| Newport | 1 | 96 |
| Coal Run | 1 | 15 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Washington County.
Not sure you are in Washington County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Washington County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
45712 | Barlow , OH | No street area | — | — | — |
45713 | Bartlett , OH | No street area | — | — | — |
45714 | Belpre , OH | Standard | 9,503 | $56,574 | $166,200 |
45721 | Coal Run , OH | Standard | 15 | — | — |
45724 | Cutler , OH | Standard | 1,218 | $58,500 | $149,200 |
45729 | Fleming , OH | Standard | 2,121 | $82,110 | $249,100 |
45742 | Little Hocking , OH | Standard | 3,752 | $78,194 | $184,800 |
45744 | Lowell , OH | Standard | 2,179 | $69,148 | $201,500 |
45746 | Macksburg , OH | Standard | 329 | $65,161 | $109,700 |
45750 | Marietta , OH | Standard | 26,420 | $60,229 | $185,900 |
45767 | New Matamoras , OH | Standard | 2,428 | $42,813 | $122,000 |
45768 | Newport , OH | Standard | 1,503 | $84,286 | $204,400 |
45773 | Reno , OH | Standard | 600 | $69,848 | $205,800 |
45784 | Vincent , OH | Standard | 3,002 | $82,713 | $229,800 |
45786 | Waterford , OH | Standard | 3,187 | $70,917 | $218,500 |
45787 | Watertown , OH | No street area | — | — | — |
45788 | Whipple , OH | Standard | 691 | $100,682 | $194,900 |
45789 | Wingett Run , OH | Standard | 280 | $81,649 | — |
Cite this page
zipcodes.pro. “Washington County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/washington
Underlying data is public domain or openly licensed — sources, vintages and licences.