In 2019, Louisa County, IA had a population of 11.2k people with a median age of 41.9 and a median household income of $56,673. Between 2018 and 2019 the population of Louisa County, IA declined from 11,223 to 11,178, a −0.401% decrease and its median household income grew from $53,943 to $56,673, a 5.06% increase.
The 5 largest ethnic groups in Louisa County, IA are White (Non-Hispanic) (78.1%), White (Hispanic) (12.2%), Asian (Non-Hispanic) (3.37%), Other (Hispanic) (3.33%), and Black or African American (Non-Hispanic) (1.07%). 0% of the households in Louisa County, IA speak a non-English language at home as their primary language, and 93.6% of the residents in Louisa County, IA are U.S. citizens.
In 2019, the median property value in Louisa County, IA was $108,800, and the homeownership rate was 76.9%. Most people in Louisa County, IA drove alone to work, and the average commute time was 21.4 minutes. The average car ownership in Louisa County, IA was 2 cars per household.