The Fairbanks North Star Borough is a borough located in the state of Alaska. As of the 2010 census, the population was 97,581. The borough seat is Fairbanks. The borough’s land area is slightly smaller than that of the state of New Jersey.
The borough has a total area of 7,444 square miles (19,280 km), of which 7,338 square miles (19,010 km) is land and 105 square miles (270 km) (1.4%) is water.
As of the 2000 census, 82,840 people, 29,777 households, and 20,516 families were residing in the borough. The population density was 11 people per square mile (4/km²). There were 33,291 housing units at an average density of 4 per square mile (2/km²). The racial makeup of the borough was 77.79% White, 5.6% Black or African American, 6.90% Native American, 2.08% Asian, 0.30% Pacific Islander, 1.71% from other races, and 5.39% from two or more races. 4.15% of the population were Hispanic or Latino of any race.
There were 29,777 households out of which 41.30% had children under the age of 18 living with them, 54.70% were married couples living together, 9.30% had a female householder with no husband present, and 31.10% were non-families. 23.60% of all households were made up of individuals and 3.60% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.20.
In the borough the population was spread out with 30.10% under the age of 18, 12.20% from 18 to 24, 33.30% from 25 to 44, 19.80% from 45 to 64, and 4.60% who were 65 years of age or older. The median age was 30 years. For every 100 females, there were 109.10 males. For every 100 females age 18 and over, there were 110.90 males.