ZIP Code 51009
Calumet, Iowa · O'Brien County
No22696
Zip51009
TypePO BOX
Decommissioned0
Primary CityCalumet
Acceptable Cities—
Unacceptable Cities—
StateIA
LstateIowa
CountyO'Brien County
TimezoneAmerica/Chicago
Area Codes712
World RegionNA
CountryUS
Latitude42,94
Longitude-95,55