Big Falls, Minnesota  Big Falls is a city in Koochiching County, Minnesota, United States. The population was 236 at the 2010 census. U.S. Highway 71 and Minnesota State Highway 6 are two of the main routes in Big Falls. A post office called Big Falls has been in operation since 1906. The city was named for a nearby waterfall on the Big Fork River. According to the United States Census Bureau, the city has a total area of , all of it land. As of the census of 2010, there were 236 people, 130 households, and 63 families living in the city. The population density was . There were 181 housing units at an average density of . The racial makeup of the city was 97.0% White, 1.7% Native American, and 1.3% from two or more races. Hispanic or Latino of any race were 1.7% of the population. There were 130 households, of which 13.8% had children under the age of 18 living with them, 42.3% were married couples living together, 3.8% had a female householder with no husband present, 2.3% had a male householder with no wife present, and 51.5% were non-families. 42.3% of all households were made up of individuals, and 16.1% had someone living alone who was 65 years of age or older. The average household size was 1.82 and the average family size was 2.43. The median age in the city was 53.8 years. 11.4% of residents were under the age of 18; 2.7% were between the ages of 18 and 24; 18.2% were from 25 to 44; 44% were from 45 to 64; and 23.7% were 65 years of age or older. The gender makeup of the city was 53.0% male and 47.0% female. As of the census of 2000, there were 264 people, 134 households, and 73 families living in the city. The population density was 43.7 people per square mile (16.9/km2). There were 191 housing units at an average density of 31.6 per square mile (12.2/km2). The racial makeup of the city was 98.11% White, 0.38% Native American, 0.38% Asian, and 1.14% from two or more races. There were 134 households, out of which 21.6% had children under the age of 18 living with them, 42.5% were married couples living together, 8.2% had a female householder with no husband present, and 44.8% were non-families. 41.8% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.