The Town of Calhan is a statutory town located in El Paso County, Colorado, United States. The town population was 762 at the 2020 United States Census. Calhan is a part of the Colorado Springs, CO Metropolitan Statistical Area and the Front Range Urban Corridor. The town straddles U.S. Highway 24. With Calhan sitting at an elevation of above sea level, Calhan is the highest non-mountain town in the United States. It is the site of the Calhan Paint Mines Archeological District, a popular natural attraction.
Calhan was established in 1888 as a water station for the now-defunct Chicago, Rock Island and Pacific Railroad, with the first steam locomotive arriving on November 5, 1888. The town was named by and for Michael Calahan, who had the contract to lay railroad tracks from the Colorado/Kansas border to Colorado Springs. However, when the town's first U.S. Post Office opened on November 24, 1888, the middle "a" had been droppe