SULLIVAN County, TN

Sullivan County is a county located in the U.S. state of Tennessee on its northeast border. As of the 2020 census, the population was 158,163. Its county seat is Blountville.

Sullivan County is part of the Kingsport–Johnson City–Bristol, TN-VA Metropolitan Statistical Area, which is a component of the Kingsport–Johnson City–Bristol, TN-VA Combined Statistical Area, commonly known as the "Tri-Cities" region.

Sullivan is Tennessee's second-oldest county; it was established in 1779 when the area was still part of North Carolina. From 1784 to 1788, it was part of the extra-legal State of Franklin.

History

Sullivan County was created in 1779 from a portion of Washington County, and named for John Sullivan, a Patriot general in the Revolutionary War. Long Island of the Holston in Kingsport was long an important center for the Cherokee, who occupied much of this territory. Later in 1761 the British colonists built Fort Robinson on Long Island, following the fall of Fort Loudoun further to the south. This attracted other settlers, and the Sullivan area became one of the earliest areas of Tennessee to be settled by European Americans.

As political tensions rose prior to the American Civil War, Sullivan County was one of the few East Tennessee counties to support secession. It became known as the Little Confederacy. In Tennessee's June 1861 referendum, the county voted 1,586 to 627 in favor of secession.

Geography

According to the U.S. Census Bureau, the county has a total area of , of which is land and (3.8%) is water. The western portion of the county lies within the Ridge-and-Valley Appalachians, which are characterized by long, narrow ridges roughly oriented northeast-to-southwest. The northeastern end of Bays Mountain, part of the Ridge-and-Valley range, rises southwest of Kingsport. The eastern portion of the county lies within the Blue Ridge Mountains. Holston Mountain, which at is the highest point in Sullivan, straddles the county's eastern boundary with Johnson County.

In Kingsport, the South Fork Holston River and the North Fork Holston River join to form the Holston River, one of the tributaries of the Tennessee River. The Watauga River, a tributary of the South Fork Holston, forms part of Sullivan's boundary with Washington County to the south. The North Fork Holston forms part of Sullivan's boundary with Hawkins County to the west. Fort Patrick Henry Dam and Boone Dam both create large artificial lakes along the South Fork Holston southeast of Kingsport.

Blountville, Sullivan's county seat, is Tennessee's only unincorporated county seat.

Morrell Cave

Morrell Cave (also known as Worleys Cave) is a Tennessee State Natural Area. The cave has a surveyed length of , making it the second-longest cave in East Tennessee and the 177th longest cave in the United States. Morrell Cave is located on the south side of the Holston River, east of Bluff City.

During the Civil War, the cave was a major source of saltpeter, the main ingredient of gunpowder. Significant evidence of this mining activity remains in the cave, including evidence of large amounts of saltpeter-bearing dirt having been removed, pick marks in the dirt, and an elaborate system of trails used by the miners. Cave historian Marion O. Smith has determined that two companies of the Confederate Nitre and Mining Bureau, District No. 7, were active in Sullivan County.

Adjacent counties and independent city

National protected areas

State protected areas

Other protected areas

Major highways

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Demographics

2020 census

As of the 2020 United States census, there were 158,163 people, 68,560 households, and 44,284 families residing in the county.

2010 census

As of the 2010 United States Census, there were 156,281 people living in the county. 95.5% were White, 0.6% Black or African American, 0.4% Asian, 0.2% Native American, 2.2% of some other race and 1.0% of two or more races. 4.8% were Hispanic or Latino (of any race).

2000 census

As of the census of 2000, there were 153,048 people, 63,556 households, and 44,806 families living in the county. The population density was 371 people per square mile (143/km²). There were 69,052 housing units at an average density of 167 per square mile (65/km²). The racial makeup of the county was 96.55% White, 1.89% Black or African American, 0.22% Native American, 0.43% Asian, 0.01% Pacific Islander, 0.21% from other races, and 0.69% from two or more races. 0.71% of the population were Hispanic or Latino of any race.

There were 63,556 households, out of which 28.40% had children under the age of 18 living with them, 57.10% were married couples living together, 10.20% had a female householder with no husband present, and 29.50% were non-families according to the United States Census Bureau. Of 63,556 households, 1,915 are unmarried partner households: 1,702 heterosexual, 97 same-sex male, 116 same-sex female. 26.40% of all households were made up of individuals, and 11.10% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.84.

In the county, the population was spread out, with 21.80% under the age of 18, 7.30% from 18 to 24, 28.40% from 25 to 44, 26.50% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 93.30 males. For every 100 females age 18 and over, there were 90.20 males.

The median income for a household in the county was $33,529, and the median income for a family was $41,025. Males had a median income of $31,204 versus $21,653 for females. The per capita income for the county was $19,202. About 9.70% of families and 12.90% of the population were below the poverty line, including 17.10% of those under age 18 and 11.90% of those age 65 or over.

Government

Sullivan County, like most of rural Tennessee, is heavily Republican, but, unlike most of East Tennessee, has not voted consistently Republican since the Civil War. Being one of only six counties in East Tennessee and the only county in Northeast Tennessee to support the Confederacy, Sullivan County voted mostly consistently Democratic between the end of the Civil War and the mid-20th century, the only county in East Tennessee to do so. The last Democratic presidential candidate to carry Sullivan County was southerner Jimmy Carter in 1976.

Richard Venable is the county mayor. The county commission has 24 members. Before 2010, commissioners were elected on a nonpartisan basis, but Sullivan County's commission election became a partisan election in 2010 after the county Republican Party decided to conduct a primary election for commission seats.

Current composition of the Sullivan County Commission

Communities

Cities

Census-designated places

Unincorporated communities

Notable people