In 2020, Sullivan County, IN had a population of 20.6k people with a median age of 41.3 and a median household income of $49,449. Between 2019 and 2020 the population of Sullivan County, IN declined from 20,730 to 20,647, a −0.4% decrease and its median household income declined from $50,245 to $49,449, a −1.58% decrease.
The 5 largest ethnic groups in Sullivan County, IN are White (Non-Hispanic) (91.4%), Black or African American (Non-Hispanic) (3.73%), Two+ (Non-Hispanic) (1.95%), Asian (Non-Hispanic) (0.76%), and Two+ (Hispanic) (0.697%).
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.
99.8% of the residents in Sullivan County, IN are U.S. citizens.
In 2020, the median property value in Sullivan County, IN was $89,400, and the homeownership rate was 75.7%. Most people in Sullivan County, IN drove alone to work, and the average commute time was 23.7 minutes. The average car ownership in Sullivan County, IN was 2 cars per household.