Main city: Granite Falls
Timezone: Central
Phone type: Landline
Operator: Onvoy

Granite Falls, a city in Chippewa, Renville and Yellow Medicine counties in the U.S. state of Minnesota. The population was 2,897 at the 2010 census. It is the county seat of Yellow Medicine County. The Andrew John Volstead House, a National Historic Landmark, is located in Granite Falls. ^source

Area code 320 is the telephone numbering plan code covering most of central Minnesota. It was the fourth Minnesota area code, and the first new one in the state in 42 years. It was created in 1996 when it was carved out of the western portion of area code 612, which then covered central Minnesota. The Twin Cities region retained 612, with the 320 area including the communities of St. Cloud, Alexandria, and Willmar. ^source