Dumont is a small unincorporated community and U.S. Post Office situated along Clear Creek in Clear Creek County, Colorado, United States. The Dumont Post Office has the ZIP Code 80436. Dumont is a part of the Downieville-Lawson-Dumont census-designated place.
The Dumont, Colorado, post office opened on May 17, 1880. Dumont is named for John M. Dumont, a mine operator.
Downieville is located in the Downieville-Lawson-Dumont, CO Census Designated Place at coordinates and elevation .