Charles City, IA is currently utilizing one area code which is area code 641. Area code 641 was created from a split of area code 515 and put into service on July, 09, 2000.
In addition to Charles City, IA area code 641 serves central Iowa including the larger cities and communities of Marshalltown, Mason City and Ottumwa, in addition to many smaller communities within the area code 641 service area.
Charles City, IA is located in Floyd County and observes the Central Time Zone.
View our Times by Area Code tool.