Coalmont is an unincorporated community and U.S. Post Office in Jackson County, Colorado, United States.

The town is named for the open-pit lignite coal mines in the area, from which coal was shipped out on the Union Pacific Railroad to the mainline at Laramie, Wyoming.

Spicer is a weather station roughly 6 miles (9.7 km) south of Coalmont, at an elevation of 8,385 ft (2,556 m).

Spicer has a subalpine climate (Köppen Dfc), bordering on a humid continental climate (Köppen Dfb).

In the Coalmont Coal District, commercial coal mining from the Coalmont Formation started in 1909 and continued until the close of World War II when coal production ceased.