In 2019, Sullivan County, MO had a population of 6.25k people with a median age of 42.1 and a median household income of $46,481. Between 2018 and 2019 the population of Sullivan County, MO declined from 6,317 to 6,247, a −1.11% decrease and its median household income grew from $42,604 to $46,481, a 9.1% increase.
The 5 largest ethnic groups in Sullivan County, MO are White (Non-Hispanic) (76.8%), White (Hispanic) (13.8%), Other (Hispanic) (3.14%), Black or African American (Non-Hispanic) (2.27%), and American Indian & Alaska Native (Non-Hispanic) (1.31%). 0% of the households in Sullivan County, MO speak a non-English language at home as their primary language.
95.8% of the residents in Sullivan County, MO are U.S. citizens.
In 2019, the median property value in Sullivan County, MO was $77,000, and the homeownership rate was 74.5%. Most people in Sullivan County, MO drove alone to work, and the average commute time was 15.7 minutes. The average car ownership in Sullivan County, MO was 2 cars per household.