Somerset is a census-designated place (CDP) and post office located in and governed by Gunnison County, Colorado, United States.

[3] The Somerset post office has the ZIP Code 81434.

In 2012, the Aspen Skiing Company built a 3-megawatt methane-to-electricity plant in Somerset at Oxbow Carbon's Elk Creek Mine.

[6]The Somerset CDP has an area of 122 acres (0.492 km2), all land.

The United States Census Bureau defined the Somerset CDP for the United States Census 2020.