In 2020, Decatur County, IA had a population of 7.91k people with a median age of 36 and a median household income of $48,154. Between 2019 and 2020 the population of Decatur County, IA declined from 7,979 to 7,908, a −0.89% decrease and its median household income grew from $44,462 to $48,154, a 8.3% increase.
The 5 largest ethnic groups in Decatur County, IA are White (Non-Hispanic) (91.8%), Two+ (Non-Hispanic) (2.77%), White (Hispanic) (2.47%), Black or African American (Non-Hispanic) (1.21%), and Asian (Non-Hispanic) (0.936%).
None of the households in Decatur County, IA reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.3% of the residents in Decatur County, IA are U.S. citizens.
The largest universities in Decatur County, IA are Graceland University-Lamoni (595 degrees awarded in 2020).
In 2020, the median property value in Decatur County, IA was $82,800, and the homeownership rate was 64.6%. Most people in Decatur County, IA drove alone to work, and the average commute time was 26.8 minutes. The average car ownership in Decatur County, IA was 2 cars per household.