Census | Pop. | Note | %± |
---|---|---|---|
1920 | 4,178 | — | |
1930 | 5,297 | 26.8% | |
1940 | 9,034 | 70.5% | |
1950 | 9,645 | 6.8% | |
1960 | 11,565 | 19.9% | |
1970 | 10,783 | −6.8% | |
1980 | 10,628 | −1.4% | |
1990 | 12,121 | 14.0% | |
2000 | 13,247 | 9.3% | |
2010 | 13,447 | 1.5% | |
2020 | 13,778 | 2.5% | |
2022 (est.) | 13,681 | [9] | −0.7% |
U.S. Decennial Census [10] 1790–1960, [11] 1900–1990, [12] 1990–2000, [13] 2010–2020 [1] |
As of the 2020 census, there were 13,778 people living in the county.[ citation needed ]
As of the 2010 census, there were 13,399 people, 4,361 households, and 3,088 families residing in the county. The population density was 4.5 inhabitants per square mile (1.7/km2). There were 5,348 housing units at an average density of 1.8 per square mile (0.69/km2). The racial makeup of the county was 65.6% Native American, 31.1% white, 0.2% Asian, 0.1% black or African American, 0.2% from other races, and 2.8% from two or more races. Those of Hispanic or Latino origin made up 1.8% of the population. In terms of ancestry, 13.6% were German, 7.2% were Irish, 5.6% were Norwegian, and 1.4% were American.
Of the 4,361 households, 44.0% had children under the age of 18 living with them, 42.8% were married couples living together, 19.1% had a female householder with no husband present, 29.2% were non-families, and 24.9% of all households were made up of individuals. The average household size was 2.91 and the average family size was 3.49. The median age was 31.7 years.
The median income for a household in the county was $38,075 and the median income for a family was $44,397. Males had a median income of $31,700 versus $30,594 for females. The per capita income for the county was $17,053. About 21.4% of families and 25.4% of the population were below the poverty line, including 35.0% of those under age 18 and 12.9% of those age 65 or over.
High school districts include: [26]
Elementary school districts include: [26]