Lineville is located in Clay county Alabama with a geographic area of 9.7 square miles. The total population in Lineville is 2,501 with 47.7% male and 52.3% female. Children under age 5 represent 7.1% of the population, under age 18 equal 21.4% of the population and over age 65 is 23.1% of the population. The median household income is $33,824, per capita income is $23,029. There are a total of 1,040 housing units with 62.0% owner occupied. Education includes 41.6% of residents that are high school graduates and 11.7% with a bachelor's degree or higher. The average temperature in Lineville in the summer is 77 degrees, and in the winter 43 degrees.