Zip Area Code

Erwin, South Dakota

Erwin, South Dakota, in Kingsbury County, has ZIP code 57233 and area code 605.

ZIP code
57233
Area code
605
Coordinates
44.4915, -97.4103

ZIP codes in Erwin

ZIP codePost officeCountyArea codes
57233ErwinKingsbury County605

Area code for Erwin

  • Area code 605

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

Towns near Erwin