| Zip Code : | 52658 |
| City : | Denmark, Fort Madison city |
| County : | Des Moines County, Lee County |
| State : | Iowa (IA) |
| | |
| Land Area : | 45.49 sq mi |
| Water Area : | 5.18 sq mi |
| Latitude : | 40.6994039 |
| Longitude : | -91.2296536 |
| | |
| Population (2010): | 1,071 |
| Population Estimate (2012) : | 810 |
| Population Density : | 23.54/sq mi |
| Housing Units (2012) : | 491 |
| Median Household Income (2012) : | $66,167 (Iowa : $51,129, USA : $53,046) |
| Median Family Income (2012) : | $68,313 (Iowa : $64,772, USA : $64,585) |
| Median House Price (2012) : | $97,000 (Iowa : $123,000, USA : $181,400) |