Zip Area Code

San Juan County, Colorado

San Juan County, Colorado, has 1 town and 1 ZIP code, in area code 970, with 748 as an overlay.

Towns in San Juan County, A to Z

TownZIP codesArea codes
Silverton81433970, 748

ZIP codes in San Juan County

Area codes in San Juan County

  • Area code 970

    In service since April 2, 1995. Shares its area with 748. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 748

    In service since July 7, 2025. Shares its area with 970. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.