2020 census
As of the 2020 census, Sells had a population of 2,121. The median age was 30.2 years. 31.5% of residents were under the age of 18 and 10.0% of residents were 65 years of age or older. For every 100 females there were 93.0 males, and for every 100 females age 18 and over there were 91.6 males age 18 and over.[5][6]
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.[7]
There were 591 households in Sells, of which 41.5% had children under the age of 18 living in them. Of all households, 18.3% were married-couple households, 24.2% were households with a male householder and no spouse or partner present, and 46.2% were households with a female householder and no spouse or partner present. About 25.9% of all households were made up of individuals and 9.8% had someone living alone who was 65 years of age or older.[5]
There were 675 housing units, of which 12.4% were vacant. The homeowner vacancy rate was 0.0% and the rental vacancy rate was 2.2%.[5]
2000 census
As of the 2000 census[8], there were 2,799 people, 690 households, and 565 families residing in the CDP. The population density was 298.9 inhabitants per square mile (115.4/km2). There were 810 housing units at an average density of 86.5 per square mile (33.4/km2). The racial makeup of the CDP was 96% Native American, 3% White, <1% Black or African American, <1% Asian, <1% from other races, and <1% from two or more races. 3% of the population were Hispanic or Latino of any race.
There were 690 households, out of which 42.3% had children under the age of 18 living with them, 26% were married couples living together, 44% had a female householder with no husband present, and 18% were non-families. 14% of all households were made up of individuals, and 2% had someone living alone who was 65 years of age or older. The average household size was 4.0 and the average family size was 4.3.
In the CDP, the population was spread out, with 42% under the age of 18, 11% from 18 to 24, 27% from 25 to 44, 16% from 45 to 64, and 5% who were 65 years of age or older. The median age was 23 years. For every 100 females, there were 93.3 males. For every 100 females age 18 and over, there were 82.2 males.
The median income for a household in the CDP was $20,610, and the median income for a family was $20,294. Males had a median income of $25,278 versus $22,396 for females. The per capita income for the CDP was $6,283. About 42% of families and 46% of the population were below the poverty line, including 51% of those under age 18 and 41% of those age 65 or over.
