Coal Creek, commonly known as Coal Creek Canyon, is an unincorporated community and a census-designated place (CDP) located in Jefferson, Boulder, and Gilpin counties, Colorado, United States. The population of the Coal Creek CDP was 2,494 at the United States Census 2020. The unincorporated community is a part of the Denver-Aurora-Greeley, CO Combined Statistical Area and the Front Range Urban Corridor.
The Coal Creek, Colorado Territory, post office operated from April 9, 1864, until October 29, 1873, but the Golden, Colorado, post office (Zip code 80403) now serves the area.
The Coal Creek CDP has an area of , including of water.
From the 1990s through the early 2010s, Coal Creek Canyon was served by a limited commuter transit route operated by the Regional Transportation District (RTD). The service, known as Route CC, connected residents of the canyon to the Olde Town Arvada Park-n-Ride, with Park-n-Ride stops at Wondervu, the Coal Creek Canyon Improvement Association, and at the junction of State Highways 72 and 93.
Around 2010, due to low ridership RTD transferred operations of the route to Boulder County, rebranding it as the Coal Creek Express (CCE). Despite reduced costs and efforts to expand ridershipâÂÂincluding a proposed extension to Nederland in 2011âÂÂthe service was discontinued during RTDâÂÂs 2012 system-wide service reductions. Currently no fixed-route public transportation operates in Coal Creek Canyon.
According to the Köppen Climate Classification system, Coal Creek has a warm-summer humid continental climate, abbreviated "BSk" on climate maps, but closely borders on an oceanic climate (Cfb).
The United States Census Bureau initially defined the for the