Blairsden is located at . According to the United States Census Bureau, the CDP has a total area of, all of it land.
Demographics
2010
The 2010 United States Census reported that Blairsden had a population of 39. The population density was 72.0 people per square mile. The racial makeup of Blairsden was 38 White, 0 African American, 0 Native American, 0 Asian, 0 Pacific Islander, 1 from other races, and 0 from two or more races. Hispanic or Latino of any race were 2 persons. The Census reported that 39 people lived in households, 0 lived in non-institutionalized group quarters, and 0 were institutionalized. There were 22 households, out of which 2 had children under the age of 18 living in them, 9 were opposite-sex married couplesliving together, 2 had a female householder with no husband present, 0 had a male householder with no wife present. There were 1 unmarried opposite-sex partnerships, and 0 same-sex married couples or partnerships. 9 households were made up of individuals, and 3 had someone living alone who was 65 years of age or older. The average household size was 1.77. There were 11 families ; the average family size was 2.36. The population was spread out, with 3 people under the age of 18, 2 people aged 18 to 24, 7 people aged 25 to 44, 13 people aged 45 to 64, and 14 people who were 65 years of age or older. The median age was 55.8 years. For every 100 females, there were 77.3 males. For every 100 females age 18 and over, there were 80.0 males. There were 34 housing units at an average density of 62.8 per square mile, of which 9 were owner-occupied, and 13 were occupied by renters. The homeowner vacancy rate was 0%; the rental vacancy rate was 13.3%. 16 people lived in owner-occupied housing units and 23 people lived in rental housing units.
2000
As of the census of 2000, there were 50 people, 25 households, and 12 families residing in the CDP. The population density was 92.0 people per square mile. There were 33 housing units at an average density of 60.7 per square mile. The racial makeup of the CDP was 90.00% White, 2.00% Asian, 4.00% from other races, and 4.00% from two or more races. 4.00% of the population were Hispanic or Latino of any race. There were 25 households, out of which 24.0% had children under the age of 18 living with them, 36.0% were married couples living together, and 52.0% were non-families. 44.0% of all households were made up of individuals, and 12.0% had someone living alone who was 65 years of age or older. The average household size was 2.00 and the average family size was 2.67. In the CDP the population was spread out, with 22.0% under the age of 18, 10.0% from 18 to 24, 28.0% from 25 to 44, 22.0% from 45 to 64, and 18.0% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 108.3 males. For every 100 females age 18 and over, there were 116.7 males. The median income for a household in the CDP was $33,393, and the median income for a family was $26,250. Males had a median income of $41,250 versus $24,444 for females. The per capita income for the CDP was $15,004. There were no families and 11.5% of the population living below the poverty line, including no under eighteens and none of those over 64.
Politics
In the state legislature Blairsden is located in, and. Federally, Blairsden is in.