In 2019, Sullivan County, IN had a population of 20.7k people with a median age of 41 and a median household income of $50,245. Between 2018 and 2019 the population of Sullivan County, IN declined from 20,792 to 20,730, a −0.298% decrease and its median household income grew from $46,517 to $50,245, a 8.01% increase.
The 5 largest ethnic groups in Sullivan County, IN are White (Non-Hispanic) (91.9%), Black or African American (Non-Hispanic) (3.88%), Two+ (Non-Hispanic) (1.88%), White (Hispanic) (0.955%), and Asian (Non-Hispanic) (0.511%). 0% of the households in Sullivan County, IN speak a non-English language at home as their primary language, and 99.8% of the residents in Sullivan County, IN are U.S. citizens.
In 2019, the median property value in Sullivan County, IN was $86,000, and the homeownership rate was 74.4%. Most people in Sullivan County, IN drove alone to work, and the average commute time was 23 minutes. The average car ownership in Sullivan County, IN was 2 cars per household.