| County : | Clinton County |
| State : | Ohio (OH) |
| Land Area : | 408.68 sq mi |
| Water Area : | 3.61 sq mi |
| Latitude : | 39.4140409 |
| Longitude : | -83.8145417 |
| Population (2010): | 42,040 |
| Population Estimate (2012) : | 42,161 |
| Population Density : | 102.87/sq mi |
| Housing Units (2012) : | 18,133 |
| Median Household Income (2012) : | $46,443 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $54,914 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $121,400 (Ohio : $133,700, USA : $181,400) |
Clinton County Cities / Towns
| Blanchester Village (4,243) | Clarksville Village (548) | Lynchburg Village (1,499) |
| Martinsville Village (463) | Midland Village (315) | New Vienna Village (1,224) |
| Port William Village (254) | Sabina Village (2,564) | Wilmington City (12,520) |
Clinton County Zip Codes
| 45068 (10,479) | 45107 (9,236) | 45113 (3,857) |
| 45135 (4,761) | 45142 (4,444) | 45146 (1,580) |
| 45148 (1,588) | 45159 (3,392) | 45164 (271) |
| 45166 (98) | 45169 (4,772) | 45177 (22,260) |
| 45335 (6,939) |