| County : | Louisa County |
| State : | Iowa (IA) |
| Land Area : | 401.76 sq mi |
| Water Area : | 15.75 sq mi |
| Latitude : | 41.2182111 |
| Longitude : | -91.2569936 |
| Population (2010): | 11,387 |
| Population Estimate (2012) : | 11,448 |
| Population Density : | 28.34/sq mi |
| Housing Units (2012) : | 5,002 |
| Median Household Income (2012) : | $49,905 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $56,405 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $94,100 (Iowa : $123,000, USA : $181,400) |
Louisa County Cities / Towns
| Columbus City (391) | Columbus Junction City (1,899) | Cotter City (48) |
| Fredonia City (244) | Grandview City (556) | Letts City (384) |
| Morning Sun City (836) | Oakville City (173) | Wapello City (2,067) |
Louisa County Zip Codes
| 52621 (668) | 52640 (1,447) | 52646 (376) |
| 52653 (3,570) | 52659 (1,553) | 52737 (384) |
| 52738 (3,567) | 52739 (745) | 52752 (515) |
| 52754 (1,274) | 52755 (1,928) | 52761 (30,678) |