Decatur County, Iowa Facts
| Facts | |
| State | Iowa |
| Land area | 531.9 square miles |
| Population Density | 15.9 persons per square mile. |
| Population | |
| Population (2013) | 8,136 |
| Population change | -3.8% | Under 5 years of age | 5.1% |
| Under 18 | 21.3% |
| 65 and over | 18.8% |
| Females | 49.9% |
| White | 95.5 |
| Hispanic or Latino of any race | 2.5 |
| Asian | 0.8% |
| Two or more races | 1.2% |
| Black or African American | 1.9% |
| Native American | 0.4% |
| Pacific Islander | 0.2% |
| Had graduated from high school | 85% |
| Had a bachelor’s degree or higher | 18.4% |
| Veterans | 612 |
| Households and Housing | |
| Households | 3,106 |
| Persons per household | 2.4 |
| Living in the same house for one year or more | 80.5% |
| Median household income | $36,326 |
| The per capita income | $18,845 |
| Live below the poverty line. | 19.5% |
| housing units | 3,831 |
| Multi-unit structures | 14% |
| The median value of owner-occupied housing | $77,700 |
| Residents owning their homes. | 70.1% |
| Business Facts | |
| Total number of firms | 869 |
| Women-owned firms | 0% |
| Asian-owned firms | 0% |
| Hispanic-owned firms | 0% |
| Black-owned firms | 0% |
| Native American-owned firms | 0% |
| Pacific Islander-owned firms | 0% |
| Retail sales | $39,590 |
| Retail sales per capita | $4,746 |
| Manufacturers shipments | $0 |
| Merchant wholesaler sales | $76,650 |