The county population was 843 at 2010 census. The county seat and the only municipality in the county is the Town of Lake City. Hinsdale County is named for George A. Hinsdale, a prominent pioneer and former Lt. Governor of the Colorado Territory. According to the 2000 census, the county has a total area of 1,123.14 square miles (2,908.9 km2), of which 1,117.68 square miles (2,894.8 km2) (or 99.51%) is land and 5.46 square miles (14.1 km2) (or 0.49%) is water. Hinsdale County is one of the most remote counties in Colorado and the United States. The county is covered by mountains, including multiple fourteeners, and contains one of the most roadless areas in the country. The continental divide crosses the county twice. Most of the county is divided among several different national forests and the Weminuche Wilderness area.
- County Seat: Lake City
- Cities and Towns: Lake City
- Elevation (Lake City): 8,671 ft.
- Public/Private Lands Ratio: 95.3% Public/ 4.7% Private
- Wilderness: 49% of Public Lands, 47% of County Total
- Miles of County Road Paved/Dirt: 4 miles Paved/ 245 miles Dirt
- County Employees: 38 + 7 Elected
- Average Yearly Precipitation: 16.6"
- Days of Sunshine: 300+
- Mean January Temp: 15
- Mean July Temp: 65
- Top Employers: Service Industry, Construction, Government, School District, Medical Center, Bank