Clinton County, Ohio ZIP codes
10 ZIP codes are in Clinton County, plus 4 that cross in from neighboring counties. It's part of the Wilmington, OH micro area.
- ZIP codes
- 10
- Population in these ZIPs
- 46,780
- Avg. median income
- $74,900population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Clinton County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 45107 | Blanchester | 9,190 | $71,510 | $271,300 |
| 45113 | Clarksville | 3,877 | $104,750 | $395,800 |
| 45114 PO Box | Cuba | — | — | — |
| 45146 | Martinsville | 1,324 | $71,184 | $228,600 |
| 45148 | Midland | 1,592 | $78,438 | $256,200 |
| 45159 | New Vienna | 3,588 | $82,961 | $253,300 |
| 45164 | Port William | 175 | $48,750 | $96,700 |
| 45166 | Reesville | 60 | — | — |
| 45169 | Sabina | 4,050 | $52,405 | $211,700 |
| 45177 | Wilmington | 22,924 | $74,051 | $271,300 |
ZIP codes partly in Clinton County
These ZIP codes are mostly in a neighboring county but cover part of Clinton County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 45068 | Waynesville | Warren County | 11,597 | $96,147 | $452,000 |
| 45135 | Leesburg | Highland County | 5,291 | $79,629 | $262,900 |
| 45142 | Lynchburg | Highland County | 4,187 | $66,844 | $214,000 |
| 45335 | Jamestown | Greene County | 7,359 | $81,690 | $272,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Clinton County
Nearby counties
Frequently asked questions
How many ZIP codes are in Clinton County, Ohio?
10 ZIP codes are mainly in Clinton County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Clinton County?
ZIP codes in Clinton County use the city names Blanchester, Clarksville, Cuba, Martinsville, Midland, New Vienna, Port William, Reesville, Sabina and Wilmington.
What metro area is Clinton County in?
Clinton County is part of the Wilmington, OH micropolitan statistical area.