The City of Idaho Springs is the Statutory City that is the most populous municipality in Clear Creek County, Colorado, United States. Idaho Springs is a part of the Denver–Aurora–Lakewood, CO Met…The City of Idaho Springs is the Statutory City that is the most populous municipality in Clear Creek County, Colorado, United States. Idaho Springs is a part of the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area. As of the 2010 census it had a population of 1,717. Idaho Springs is located in Clear Creek Canyon, in the mountains upstream from Golden, some 30 miles west of Denver.