Area Code 320 History:
Area code 320 was put into service. Area code 320 was created from a split of area code 612.
Counties in Minnesota within area code 320 include:
Aitkin, Benton, Big Stone, Chippewa, Chisago, Crow Wing, Douglas, Grant, Isanti, Kanabec, Kandiyohi, Lac Qui Parle, McLeod, Meeker, Mille Lacs, Morrison, Pine, Pope, Renville, Sherburne, Stearns, Stevens, Swift, Todd, Traverse, Wright, and Yellow Medicine.
Major cities or places in Minnesota within area code 320 include:
Area code 320 serves much of central Minnesota including Appleton, Hutchinson, St. Cloud and Willmar, in addition to many smaller communities.