The Sheriff's Office is located in the Aitkin County Courthouse in the city of Aitkin, MN. Aitkin is located approximately 15 miles north of Mille Lacs Lake. The courthouse is located 2 blocks west of the stoplight on State Highway 210 in Aitkin. The entrance to the Sheriff's Office is located at 118 3rd Av NW on the west end of the courthouse complex. Parking is available across the street.