2020 census
As of the 2020 census, the county had a population of 1,729. Of the residents, 21.7% were under the age of 18 and 23.6% were 65 years of age or older; the median age was 46.2 years. For every 100 females there were 104.1 males, and for every 100 females age 18 and over there were 106.9 males. 0.0% of residents lived in urban areas and 100.0% lived in rural areas. [11] [12] [13]
The racial makeup of the county was 92.9% White, 0.1% Black or African American, 1.3% American Indian and Alaska Native, 0.5% Asian, 0.9% from some other race, and 4.3% from two or more races. Hispanic or Latino residents of any race comprised 1.9% of the population. [13]
There were 747 households in the county, of which 25.0% had children under the age of 18 living with them and 18.1% had a female householder with no spouse or partner present. About 28.7% of all households were made up of individuals and 14.6% had someone living alone who was 65 years of age or older. [12]
There were 1,025 housing units, of which 27.1% were vacant. Among occupied housing units, 80.6% were owner-occupied and 19.4% were renter-occupied. The homeowner vacancy rate was 2.1% and the rental vacancy rate was 14.7%. [12]
2010 census
As of the 2010 census, there were 1,734 people, 774 households, and 514 families living in the county. The population density was 0.7 inhabitants per square mile (0.27 inhabitants/km2), the 10th lowest in the United States. There were 1,008 housing units at an average density of 0.4 units per square mile (0.15 units/km2). The racial makeup of the county was 98.0% white, 0.4% American Indian, 0.1% black or African American, 0.1% Asian, 0.1% from other races, and 1.2% from two or more races. Those of Hispanic or Latino origin made up 0.7% of the population. In terms of ancestry, 44.5% were German, 23.1% were Norwegian, 12.7% were American, 12.0% were Irish, and 8.8% were English.
Of the 774 households, 23.4% had children under the age of 18 living with them, 61.0% were married couples living together, 3.2% had a female householder with no husband present, 33.6% were non-families, and 31.7% of all households were made up of individuals. The average household size was 2.22 and the average family size was 2.77. The median age was 48.9 years.
The median income for a household in the county was $48,167 and the median income for a family was $56,406. Males had a median income of $33,185 versus $26,454 for females. The per capita income for the county was $23,265. About 5.9% of families and 8.6% of the population were below the poverty line, including 10.3% of those under age 18 and 11.5% of those age 65 or over.
United States
Montana 
