Teton County

Teton County is an administrative unit in northwestern Wyoming that stretches across a mix of mountain peaks, valleys, and waterways. Within its boundaries lie large parts of two national parks and several small towns surrounded by open land.

The area was carved out of Lincoln County in 1921 after residents requested a local government closer to their homes. Before then, people traveled long distances to Kemmerer for official business.

The name comes from French trappers who called the mountain range Les Trois Tétons. Today the area is home to ranching families and service workers who adapt their rhythm to long winters and a steady flow of visitors.

Most services and facilities are located in Jackson, which acts as the administrative center. Roads throughout the region can close in winter, so travelers should check conditions before heading out.

A large share of Yellowstone's water, including most of the lake, sits within the boundary. This division means many visitors exploring the park also step into this administrative territory without realizing it.

Location: Wyoming

Inception: 1922

Capital city: Jackson

Shares border with: Park County, Fremont County, Sublette County, Lincoln County, Bonneville County, Teton County, Gallatin County

Website: http://tetonwyo.org

GPS coordinates: 43.92000,-110.57000

Latest update: December 4, 2025 23:45