Clinton County, OH ZIP codes
There are 10 ZIP codes in Clinton County, OH, in 10 towns, from 45107 to 45177. The largest are 45177 (Wilmington), 45107 (Blanchester) and 45169 (Sabina).
The county seat is Wilmington.
- ZIP codes
- 10
- Towns
- 10
- County seat
- Wilmington
- County FIPS
39027- State
- Ohio
- Population
- 42,012
- Median household income
- $70,407
- Land area
- 409 sq mi
- Area code
- 937
- Metro area
- Wilmington
Clinton County ZIP codes by town
- Wilmington (county seat)
- 45177
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 Clinton County ZIP codes
The ZIP codes of Clinton 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.
Clinton County in numbers
About 42,012 people live in Clinton County, in 16,761 households, the 59th most populous of Ohio's 88 counties. The median household income is $70,407 a year, about the same as the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $211,900 (about the same as the Ohio median), and median gross rent is $910 a month. The median age is 40.8; 19.3% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 25 minutes.
| Population | 42,012 |
|---|---|
| Households | 16,761 |
| Median age | 40.8 |
| Median household income | $70,407 |
| Median home value | $211,900 |
| Median gross rent | $910 |
| Bachelor's degree or higher | 19.3% |
| Mean commute | 24.6 min |
| Population density | 103 / 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 Clinton County
| Town | ZIP codes | Population |
|---|---|---|
| Wilmington | 1 | 12,620 |
| Blanchester | 1 | 4,538 |
| Sabina | 1 | 2,734 |
| New Vienna | 1 | 1,214 |
| Clarksville | 1 | 573 |
| Martinsville | 1 | 352 |
| Midland | 1 | 337 |
| Port William | 1 | 175 |
| Reesville | 1 | 60 |
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 Clinton County.
- Warren County (12)
- Clermont County (16)
- Greene County (17)
- Brown County (12)
- Highland County (7)
- Fayette County (4)
Not sure you are in Clinton County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Clinton County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
45107 | Blanchester , OH | Standard | 9,190 | $71,510 | $220,700 |
45113 | Clarksville , OH | Standard | 3,877 | $104,750 | $280,200 |
45114 | Cuba , OH | No street area | — | — | — |
45146 | Martinsville , OH | Standard | 1,324 | $71,184 | $250,300 |
45148 | Midland , OH | Standard | 1,592 | $78,438 | $179,700 |
45159 | New Vienna , OH | Standard | 3,588 | $82,961 | $169,300 |
45164 | Port William , OH | Standard | 175 | $48,750 | $96,700 |
45166 | Reesville , OH | Standard | 60 | — | — |
45169 | Sabina , OH | Standard | 4,050 | $52,405 | $151,500 |
45177 | Wilmington , OH | Standard | 22,924 | $74,051 | $226,300 |
Cite this page
zipcodes.pro. “Clinton County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/oh/county/clinton
Underlying data is public domain or openly licensed — sources, vintages and licences.