Sumner County is located in the state of Tennessee, just northeast of Nashville. It was established in 1786 and is known for its rich history and beautiful landscapes, including lakes and rolling hills. The county seat is Gallatin, which is also one of its largest cities. The county is home to several parks and recreational areas, making it a popular destination for outdoor activities. Old Hickory Lake and Bledsoe Creek State Park offer opportunities for fishing, boating, and hiking. Sumner County also hosts various annual events that celebrate its culture and community.