Founded on 1861-11-01, Summit County is one of 64 counties in the state of Colorado. The city of Breckenridge is the county seat. With FIPS code of 117, Summit County has a population of 30,941 and area of 618.92 square miles (1,603 km2).
List of all cities in Summit County, CO alphabetically
|City/Town||Postal Code||Area Code|
|Copper Mountain, CO||80443||970|