Dyersville, IA is currently using one area code which is area code 563. Area code 563 was created from a split of area code 319 and put into service on March 25, 2001.
In addition to Dyersville, IA area code 563 serves northeastern Iowa including the larger cities and communities of Clinton, Davenport, Decorah, Dubuque and Muscatine in addition to many smaller communities within the area code 563 service area.
Dyersville, IA is located in Dubuque County and observes the Central Time Zone.
View our Times by Area Code tool.