Zip Area Code

Frankfort, South Dakota

Frankfort, South Dakota, in Spink County, has ZIP code 57440 and area code 605.

ZIP code
57440
Area code
605
Coordinates
44.8084, -98.2935

ZIP codes in Frankfort

ZIP codePost officeCountyArea codes
57440FrankfortSpink County605

Area code for Frankfort

  • Area code 605

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

Towns near Frankfort