Marathon, Iowa Area Code
Marathon, IA Area Codes are
Marathon, IA is officially utilizing one area code which is area code 712.
In addition to Marathon, IA area code information read more about area code 712 details and Iowa area codes.
Marathon, IA is located in Buena Vista County and observes the Central Time Zone.
View our Times by Area Code tool.
Area Codes Look Up By State and City
Area Codes Look Up in Surrounding Places
