Blair is located in Washington county Nebraska with a geographic area of 5.5 square miles. The total population in Blair is 7,830 with 47.8% male and 52.2% female. Children under age 5 represent 7.1% of the population, under age 18 equal 27.4% of the population and over age 65 is 17.5% of the population. The median household income is $57,274, per capita income is $30,153. There are a total of 3,157 housing units with 66.6% owner occupied. Education includes 24.3% of residents that are high school graduates and 32.2% with a bachelor's degree or higher. The average temperature in Blair in the summer is 73 degrees, and in the winter 26 degrees.