Zip Area Code

Calhoun County, Iowa

Calhoun County, Iowa, has 13 towns and 10 ZIP codes, in area code 712.

Towns in Calhoun County, A to Z

TownZIP codesArea codes
Farnhamville50538712
Jolley50551712
Knierim50552712
Lakenearest51449712
Lake City51449712
Lohrville51453712
Lytton50561712
Manson50563712
Pomeroy50575712
Rinardnearest50538712
Rockwell City50579712
Somers50586712
Twin Lakesnearest50579712

ZIP codes in Calhoun County

Area code in Calhoun County

  • Area code 712

    In service since 1947. Local calls are dialed with seven digits.