Zip Area Code

Mountain Plains, South Dakota

No ZIP code carries the name of Mountain Plains, South Dakota, in Lawrence County; the nearest ZIP codes are 57783 and 57799, in area code 605.

Nearest ZIP
57783, 57799
Area code
605
Coordinates
44.4670, -103.8636

Nearest ZIP codes to Mountain Plains

These are the ZIP codes nearest to Mountain Plains, each listed with the post office it is named after.

ZIP codePost officeCountyArea codes
57783SpearfishLawrence County605
57799SpearfishLawrence County605

Area code for Mountain Plains

  • Area code 605

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

Towns near Mountain Plains