Sumner County, Tennessee

Sumner County
Sumner County
County
	Old Hickory Lake at Bledsoe Creek State Park
	Seal
	Location within the U.S. state of Tennessee
	Tennessee's location within the U.S.
	Coordinates: 36°28′N 86°28′W / 36.47°N 86.46°W
Country	United States
State	Tennessee
Founded	November 1786
Named for	Jethro Sumner
Seat	Gallatin
Largest city	Hendersonville
Area
• Total	543 sq mi (1,410 km2)
• Land	529 sq mi (1,370 km2)
• Water	14 sq mi (40 km2) 2.5%
Population (2020)
• Total	196,281
• Estimate (2023)	207,994
• Density	360/sq mi (140/km2)
Congressional district	6th
Website	www.sumnertn.org

Sumner County is a county located on the central northern border of Tennessee in the United States. As of the 2020 United States Census, the population was 196,281.^[2] Its county seat is Gallatin, and its most populous city is Hendersonville.^[3] The county is named after an American Revolutionary War hero, General Jethro Sumner.

Sumner County is part of the Nashville-Davidson–Murfreesboro–Franklin, TN Metropolitan Statistical Area. The county is made up of eight cities, including Gallatin, Goodlettsville, Hendersonville, Millersville, Mitchellville, Portland, Westmoreland, and White House. Sumner County is 25 miles (40 km) northeast of Nashville, Tennessee.

^ Dee Gee Lester, "Sumner County," Tennessee Encyclopedia of History and Culture. Retrieved: April 7, 2013.
^ "State & County QuickFacts". United States Census Bureau. Retrieved December 7, 2013.
^ "Find a County". National Association of Counties. Archived from the original on March 2, 2011. Retrieved June 7, 2011.