County ZIP codes · Ohio · FIPS 39027
Clinton County, OH ZIP Codes
Clinton County, Ohio has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 1 for PO boxes or a single organization. 9 of the residential ones lie mainly in Clinton County and 4 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $52,405 in 45169 (Sabina) to $96,147 in 45068 (Waynesville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Clinton County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $66,844 and $81,690.
They carry 13 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in Clinton County
9 ZIP codes lie mainly in Clinton County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 45177 | Wilmington | 22,924 | 135 | $74k | $226k | 100% |
| 45107 | Blanchester | 9,190 | 114 | $72k | $221k | 52% |
| 45169 | Sabina | 4,050 | 43 | $52k | $152k | 74% |
| 45113 | Clarksville | 3,877 | 103 | $105k | $280k | 58% |
| 45159 | New Vienna | 3,588 | 66 | $83k | $169k | 62% |
| 45148 | Midland | 1,592 | 66 | $78k | $180k | 98% |
| 45146 | Martinsville | 1,324 | 51 | $71k | $250k | 100% |
| 45164 | Port William | 175 | 1,012 | $49k | $97k | 100% |
| 45166 | Reesville | 60 | 81 | – | – | 100% |
Partly in Clinton County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
9 ZIP codes of Clinton County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Clinton | Elsewhere |
|---|---|---|
| 45068 | 2% | Warren County 88%; Greene County 10% |
| 45107 | 52% | Warren County 19%; Brown County 18%; Clermont County 11% |
| 45335 | 3% | Greene County 93%; Fayette County 4% |
| 45135 | 10% | Highland County 69%; Fayette County 21% |
| 45142 | 17% | Highland County 76%; Brown County 7% |
| 45169 | 74% | Fayette County 20%; Greene County 6% |
| 45113 | 58% | Warren County 42% |
| 45159 | 62% | Highland County 38% |
| 45148 | 98% | Brown County 2% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 45114 | Cuba |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Clinton County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clinton County's ZIP codes use 3 prefixes: 450, 451 and 453.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 450 | Cincinnati, OH (SCF 450) | 1 | 39 |
| 451 | Cincinnati, OH (SCF 450) | 12 | 49 |
| 453 | Dayton, OH (SCF 453) | 1 | 80 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.