Teton County was established in 1915, carved out of Fremont County, reflecting the growing population and need for local governance in the Teton Basin.

Geographically, Teton County is dominated by the Teton Range to the east, providing a stunning backdrop and shaping the valley's climate and ecosystem.

The county's economy is heavily reliant on tourism, drawn by the proximity to Grand Teton National Park and Yellowstone National Park, as well as the recreational opportunities within the county itself.

Agriculture, primarily livestock and crops like barley and wheat, has historically been a significant economic driver in Teton County, though its importance has diminished with the rise of tourism.

The population of Teton County has experienced rapid growth in recent decades, driven by its scenic beauty, outdoor recreation, and perceived quality of life.

Driggs, Idaho, serves as the county seat and is the largest city in Teton County, functioning as the commercial and administrative center.

Teton County's climate is characterized by cold, snowy winters and mild, pleasant summers, contributing to its appeal for skiing, snowboarding, and other winter sports.

The Caribou-Targhee National Forest covers a substantial portion of Teton County, providing access to hiking, camping, and other outdoor activities.

The Teton River flows through the county, offering opportunities for fishing, kayaking, and other water-based recreation.

While Teton County doesn't have a UNESCO World Heritage Site directly within its borders, its proximity to Yellowstone National Park (a UNESCO site) significantly influences its tourism sector.

The Fourth of July parade in Driggs is a major local tradition, showcasing community spirit and patriotism with floats, bands, and local participation.

The Grand Targhee Resort, located in Alta, Wyoming, but easily accessible from Teton County, is a renowned ski resort that significantly impacts the local economy and tourism.

The Spud Drive-In, a historic drive-in movie theater, is a beloved local landmark that represents a unique aspect of Teton County's cultural landscape.

Politically, Teton County is generally considered conservative, although there is an increasing presence of residents with more liberal views due to recent population influxes.

The Teton County Historical Society plays a vital role in preserving and promoting the area's history, including the stories of Native American tribes, early settlers, and the development of agriculture and tourism.