Colorado Cities
Colorado has over 270 incorporated municipalities. Below are cities and towns with populations over 10,000, organized from largest to smallest. Select a city to find local government phone numbers, department contacts, and the county that serves that area.
Denver
Colorado Springs
Aurora
Fort Collins
Lakewood
Thornton
Arvada
Westminster
Pueblo
Greeley
Centennial
Boulder
Longmont
Loveland
Broomfield
Castle Rock
Grand Junction
Commerce City
Parker
Littleton
Brighton
Northglenn
Englewood
Windsor
Wheat Ridge
Lafayette
Erie
Fountain
Evans
Louisville
Montrose
Golden
Durango
Johnstown
Canon City
Firestone
Greenwood Village
Frederick
Federal Heights
Lone Tree
Sterling
Fruita
Superior
Steamboat Springs
Fort Morgan
Castle Pines
Wellington
Berthoud
Monument
Rifle