In 2023, Sullivan County, IN had a population of 20.8k people with a median age of 41.3 and a median household income of $54,985. Between 2022 and 2023 the population of Sullivan County, IN declined from 20,791 to 20,766, a −0.12% decrease and its median household income grew from $54,556 to $54,985, a 0.786% increase.
The 5 largest ethnic groups in Sullivan County, IN are White (Non-Hispanic) (90.7%), Black or African American (Non-Hispanic) (3.34%), Two+ (Non-Hispanic) (2.99%), Two+ (Hispanic) (1.11%), and Asian (Non-Hispanic) (0.665%).
None of the households in Sullivan County, IN 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.
99.7% of the residents in Sullivan County, IN are U.S. citizens.
In 2023, the median property value in Sullivan County, IN was $122,200, and the homeownership rate was 75.6%.
Most people in Sullivan County, IN drove alone to work, and the average commute time was 24.9 minutes. The average car ownership in Sullivan County, IN was 2 cars per household.
Sullivan County, IN borders Clark County, IL, Crawford County, IL, Clay County, IN, Greene County, IN, Knox County, IN, and Vigo County, IN.