Zip Area Code

Custer, South Dakota

Custer, South Dakota, in Custer County, has ZIP code 57730 and area code 605.

ZIP code
57730
Area code
605
Coordinates
43.6573, -103.4258

ZIP codes in Custer

ZIP codePost officeCountyArea codes
57730CusterCuster County605

Area code for Custer

  • Area code 605

    In service since 1947. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Towns near Custer