Sullivan County, Tennessee. QuickFacts provides statistics for all states and counties. Also for cities and towns with a population of 5,000 or more.

As of the 2020 census, the population was 158,163. Its county seat is Blountville.

Sullivan County, Tennessee has 413.5 square miles of land area and is the 56th largest county in Tennessee by total area. Topics in the Sullivan County, ...

In 2022, Sullivan County, TN had a population of 159k people with a median age of 45.2 and a median household income of $54,357. Between 2021 and 2022 the ...

Sullivan County, Tennessee's estimated 2024 population is 163,408 with a growth rate of 0.79% in the past year according to the most recent United States census ...

The population of Sullivan County, Tennessee in 2022 was 160,820, 2.6% up from the 156,756 who lived there in 2010. For comparison, the US population grew ... How has the population... · How old is the population in...