2020 census As of the
2020 census, Blackburn had a population of 70. The median age was 44.5 years. 27.1% of residents were under the age of 18 and 20.0% of residents were 65 years of age or older. For every 100 females there were 100.0 males, and for every 100 females age 18 and over there were 112.5 males age 18 and over. There were 27 households in Blackburn, of which 48.1% had children under the age of 18 living in them. Of all households, 66.7% were married-couple households, 3.7% were households with a male householder and no spouse or partner present, and 18.5% were households with a female householder and no spouse or partner present. About 3.7% of all households were made up of individuals and 0.0% had someone living alone who was 65 years of age or older. There were 36 housing units, of which 25.0% were vacant. The homeowner vacancy rate was 0.0% and the rental vacancy rate was 0.0%.
2000 census As of the
census of 2000, there were 102 people, 41 households, and 25 families residing in the town. The population density was . There were 59 housing units at an average density of . The racial makeup of the town was 88.24%
White, 8.82%
Native American, and 2.94% from two or more races. There were 41 households, out of which 29.3% had children under the age of 18 living with them, 58.5% were
married couples living together, and 39.0% were non-families. 39.0% of all households were made up of individuals, and 24.4% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.44. In the town, the population was spread out, with 28.4% under the age of 18, 6.9% from 18 to 24, 26.5% from 25 to 44, 20.6% from 45 to 64, and 17.6% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 85.5 males. For every 100 females age 18 and over, there were 97.3 males. The median income for a household in the town was $12,000, and the median income for a family was $30,625. Males had a median income of $28,750 versus $5,000 for females. The
per capita income for the town was $8,668. There were 28.6% of families and 34.7% of the population living below the
poverty line, including 40.9% of under eighteens and 38.5% of those over 64. ==Historic Site==