Decatur County, IA has a population of 8,210 people with a median age of 36.8 and a median household income of $38,467. Between 2015 and 2016 the population of Decatur County, IA declined from 8,249 to 8,210, a 0.47% decrease and its median household income declined from $38,560 to $38,467, a 0.24% decrease.
The population of Decatur County, IA is 93.1% White, 2.68% Hispanic, and 1.99% Black. 6.4% of the people in Decatur County, IA speak a non-English language, and 98.7% are U.S. citizens.
The largest universities in Decatur County, IA are Graceland University-Lamoni, with 740 graduates, N/A, with N/A graduates, and N/A, with N/A graduates.
The median property value in Decatur County, IA is $79,200, and the homeownership rate is 65.9%. Most people in Decatur County, IA commute by Drove Alone, and the average commute time is 20.6 minutes. The average car ownership in Decatur County, IA is 2 cars per household.
Decatur County, IA is the 86th most populated county in Iowa and borders Clarke County, IA; Lucas County, IA; Ringgold County, IA; Union County, IA; Wayne County, IA; Harrison County, MO; Mercer County, MO& 2 more.