| County: | Union County |
| State: | Tennessee |
| Flag: | Flag of Union County, Tennessee.svg |
| Founded: | January 23, 1856 |
| Named For: | Either its creation from parts of five other counties or its support for the Union during the Civil War[1] |
| Seat Wl: | Maynardville |
| Largest City Wl: | Maynardville |
| Area Total Sq Mi: | 247 |
| Area Land Sq Mi: | 224 |
| Area Water Sq Mi: | 24 |
| Area Percentage: | 9.5% |
| Census Yr: | 2020 |
| Pop: | 19802 |
| Density Sq Mi: | 85 |
| Time Zone: | Eastern |
| Web: | www.unioncountytn.com |
| Ex Image: | Union-County-Courthouse-tn2.jpg |
| District: | 3rd |
| Leader Title: | Mayor |
| Leader Name: | Jason Bailey |
| Zip Codes: | 37721, 37779, 37807, 37866, 37705 |
Union County is a county located in the U.S. state of Tennessee. As of the 2020 census, its population was 19,802.[2] Its county seat is Maynardville.[3] Union County is included in the Knoxville metropolitan statistical area.
Union County was formed in 1850 from portions of Grainger, Claiborne, Campbell, Anderson, and Knox Counties. At least two theories are given on the source of its name. The name may commemorate the "union" of sections of five counties, or it may reflect East Tennessee's support for the preservation of the Union in the years before and during the Civil War.[4] The enabling legislation was initially passed January 3, 1850, but due to legal challenges and complications, the county was not formally created until January 23, 1856. The county seat was originally named "Liberty", but renamed "Maynardville" in honor of attorney and congressman Horace Maynard, who had defended the county in a court case that sought to block its formation.
In the 1930s, the damming of the Clinch River by the construction of Norris Dam by the Tennessee Valley Authority (TVA) to form Norris Lake inundated a large part of the county,[5] including the community of Loyston, and displaced many residents. "The Move," what many displaced families called the forced relocation by TVA, would encounter criticism, as the promise of electrification of Union County would not come after the completion of Norris Dam, but two decades later in the mid-1950s.[6] With assistance from the National Park Service and the Civilian Conservation Corps, the TVA developed Big Ridge State Park as a demonstration park on the shore of Norris Lake in Union County. The park's recreational facilities opened in May 1934.[7]
According to the U.S. Census Bureau, the county has a total area of 247sqmi, of which 224sqmi are land and 24sqmi (9.5%) are covered by water.[8] The county is situated in the Ridge-and-Valley Appalachians, a range characterized by long, narrow ridges alternating with similarly shaped valleys. Prominent ridges in Union County include Copper Ridge, Hinds Ridge, and Lone Mountain. The southern end of Clinch Mountain forms part of the county's border with Grainger County to the east.
The Clinch River, Union County's primary stream, flows through the northern part of the county. This section of the river is part of Norris Lake. Big Ridge Dam, a small, nongenerating dam, impounds an inlet of Norris Lake, creating Big Ridge Lake at Big Ridge State Park. The "Loyston Sea", one of the widest sections of Norris Lake, is located in Union County just north of the state park.[9]
| Number | Percentage | ||
|---|---|---|---|
| White (non-Hispanic) | 18,642 | 94.14% | |
| Black or African American (non-Hispanic) | 53 | 0.27% | |
| Native American | 33 | 0.17% | |
| Asian | 36 | 0.18% | |
| Pacific Islander | 5 | 0.03% | |
| Other/Mixed | 629 | 3.18% | |
| Hispanic or Latino | 404 | 2.04% |
At the 2000 census,[10] 17,808 people, 6,742 households and 5,191 families were residing in the county. The population density was 80/mi2. The 7,916 housing units averaged 35/mi2. The racial makeup of the county was 98.46% White, 0.10% African American, 0.23% Native American, 0.16% Asian, 0.19% from other races, and 0.86% from two or more races. About 0.79% of the population were Hispanics or Latinos of any race.
Of the 6,742 households, 35.40% had children under the age of 18 living with them, 62.20% were married couples living together, 10.50% had a female householder with no husband present, and 23.00% were not families. About 19.80% of all households were made up of individuals, and 7.40% had someone living alone who was 65 years of age or older. The average household size was 2.62, and the average family size was 2.99.
The age distribution was 25.70% under 18, 8.90% from 18 to 24, 31.00% from 25 to 44, 23.60% from 45 to 64, and 10.80% who were 65 or older. The median age was 36 years. For every 100 females, there were 98.80 males. For every 100 females age 18 and over, there were 96.60 males.
The median household income was $27,335 and the median family income was $31,843. Males had a median income of $26,436 versus $18,665 for females. The per capita income for the county was $13,375. About 16.80% of families and 19.60% of the population were below the poverty line, including 25.10% of those under age 18 and 27.80% of those age 65 or over.
According to a data profile produced by the Tennessee Department of Economic and Community Development in 2018,[11] the top employers in the county are:
| Employer | Employees | ||
|---|---|---|---|
| 1 | Union County School District | 350 | |
| 2 | Clayton Homes (Maynardville) | 350 | |
| 3 | Union County | 150 | |
| 4 | Food City | 100 | |
| 5 | O-N Minerals Company | 100 |
Union County's current mayor is Jason Bailey. The county has 17 commissioners, with two-to-three from each of its seven districts.