Welcome to the Union County Extension Website. We have up-to-date information on Agriculture, 4-H, and Family and Consumer Sciences information and events. Give us a call at 865-992-8038 with any questions.
Facts about Union County
Union County sits north of Knox County, south of Claiborne County, east of Grainger County, and is bordered to the west by Campbell, and Anderson Counties. Union County was formed from portions of the counties mentioned above.
Our county was formed in 1850, but due to legal challenges and complications Union County was not formally created until January 23, 1856.
Union County is known for music entertainers such as Roy Acuff, Chet Atkins, Kenny Chesney, Carl Smith, Lois Johnson, Hilda Kitts Harrill, and Melba Kitts Greene.
Extension began in 1910, here in Tennessee, but it was not until 1917, Union County’s first agents F.G. Vickers and Maude H. Miller came.
Monday- Friday: 8:00 AM to 5:00 PM
Closed Saturday and Sunday
The Union County Extension Office is located at:
2721 Maynardville Highway Maynardville, TN 37807
Our office is in the historic Fred Booker Building that is between Guided by Grace Boutique and Union Nutrition.
Mark your calendars and plan to attend! The 2026 schedule and locations include (all times local):
- Horse Management – February 5, 5 p.m. EST, Brehm Animal Science Arena, UTIA Campus at Knoxville
- Horse Management – February 9, 5 p.m. CST, UT-TSU Extension Rutherford County, Murfreesboro, Tennessee
- Horse Management – February 10, 5 p.m. CST, First Farmer’s Co-Op, Lexington, Tennessee
- Tennessee Turf Tuesdays – April 7, 11:30 a.m. – 12:30 p.m. EDT. Event is online on Tuesdays during lunch with seven topics scheduled over several months. Visit tiny.utk.edu/TurfTuesday for more information.
- Woods and Wildlife – April 30, 8 a.m. CDT, Forest Resources AgResearch and Education Center – UT Highland Rim Forest in Tullahoma
- Beef Heifer Development School – May 21, 8:30 a.m. CDT, Middle Tennessee AgResearch and Education Center at Lewisburg
- Fruits of the Backyard – June 9, 8 a.m. CDT, Middle Tennessee AgResearch and Education Center at Spring Hill
- Green Industry Day – June 11, 8 a.m. EDT, UT Gardens and Brehm Animal Science Arena at Knoxville
- Weed Tour – June 17, 8:30 a.m. CDT, West Tennessee AgResearch and Education Center at Jackson
- Tobacco, Beef, and More – June 25, 8 a.m. CDT, Highland Rim AgResearch and Education Center at Springfield
- Milan No-Till – July 23, 8 a.m. CDT, AgResearch and Education Center at Milan
- Hort, Hops, and Crops Field Day – August 13, 8 a.m. EDT, East Tennessee AgResearch and Education Center – Plant Sciences/Organic Crops Units at Knoxville
- Steak and Potatoes – August 20, 8 a.m. CDT, Plateau AgResearch and Education Center at Crossville
- Fall Gardeners’ Festival – August 25, 8 a.m. CDT, Plateau AgResearch and Education Center at Crossville
- UT Arboretum Butterfly Festival – August 29, 9 a.m., Forest Resources AgResearch and Education Center – UT Arboretum Auditorium at Oak Ridge
- Soybean Insect and Disease – September 8, 8:30 a.m., AgResearch and Education Center at Milan
- Cotton Tour – September 9, 8:30 a.m. CDT, West Tennessee AgResearch and Education Center at Jackson
- Precision Livestock Technologies: Beef and Forage Systems – September 22 and 23, 8 a.m. CDT, Middle Tennessee AgResearch and Education Center at Spring Hill
- Fall in the Gardens (Plant Sale and Garden Talks) – October 1 and 2, 9 a.m. CDT, West Tennessee AgResearch and Education Center at Jackson
- Northeast Tennessee Youth Career Day – October 14, time TBA, Northeast Tennessee AgResearch and Education Center at Greeneville
- Northeast Tennessee Beef Expo – October 15, time TBA, Clyde Austin 4-H Camp in Greeneville
- Woods and Wildlife – October 22, 8 a.m. EDT, Forest Resources AgResearch and Education Center – UT Arboretum Auditorium at Oak Ridge
- Fall in the Foothills – October 25, 2 p.m. EDT, East Tennessee AgResearch and Education Center – Little River Dairy, Walland
For more information, visit agresearch.tennessee.edu/field-days.
