Chippewa County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 12,598. Its county seat is Montevideo. The county was formed in 1862, and was organized in 1868. Chippewa County was organized on March 5, 1868, after having been part of Renville County. The northern boundary change separating it from S…Chippewa County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 12,598. Its county seat is Montevideo. The county was formed in 1862, and was organized in 1868. Chippewa County was organized on March 5, 1868, after having been part of Renville County. The northern boundary change separating it from Swift County led to reorganization on February 18, 1870. The first three county commissioners, appointed by the governor, were Daniel S. Wilkins, Ole Thorson and M. Davidson. The county commissioners first met at Wilkins's cabin on January 9, 1869. Wilkins was appointed chairman of the board. The first officers appointed were J.D. Baker as auditor; J.C. Eldred as register of deeds; Samuel J. Sargant as treasurer; George W. Daniels as judge of probate; Edward Alcorn as sheriff; J.D. Baker as superintendent of schools; Horace W. Griggs as coroner; George W. Frink as justice of the peace; and F.W. Palmer and M. Morris as constables.