Blaine is located in Grainger county Tennessee with a geographic area of 9.5 square miles. The total population in Blaine is 1,987 with 48.0% male and 52.0% female. Children under age 5 represent 3.6% of the population, under age 18 equal 31.8% of the population and over age 65 is 16.4% of the population. The median household income is $54,125, per capita income is $23,288. There are a total of 735 housing units with 68.2% owner occupied. Education includes 44.2% of residents that are high school graduates and 18.1% with a bachelor's degree or higher. The average temperature in Blaine in the summer is 74 degrees, and in the winter 38 degrees.