Boulder

  • Allenspark
  • Boulder
  • Eldorado Springs
  • Erie 
  • Jamestown
  • Lafayette
  • Longmont 
  • Louisville
  • Lyons
  • Nederland
  • Niwot
  • Pinecliffe
  • Superior 
  • Ward
  • Wondervu

Broomfield

  • Broomfield


Adams

  • Arvada (part)
  • Aurora (part)
  • Bennett (part, extends into Arapahoe Co)
  • Brighton (part)
  • Commerce City
  • Federal Heights
  • Henderson
  • Northglenn (part)
  • Strasburg (part)
  • Thornton (part)
  • Watkins (part)
  • Westminster (part)

Gilpin

  • Black Hawk
  • Central City
  • Rollinsville

Jefferson