Zip Area Code

Grassland Colony, South Dakota

No ZIP code carries the name of Grassland Colony, South Dakota, in Brown County; the nearest ZIP code is 57481, in area code 605.

Nearest ZIP
57481
Area code
605
Coordinates
45.6682, -98.7965

Nearest ZIP codes to Grassland Colony

This is the ZIP code nearest to Grassland Colony, each listed with the post office it is named after.

ZIP codePost officeCountyArea codes
57481WestportBrown County605

Area code for Grassland Colony

  • Area code 605

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

Towns near Grassland Colony