Louisa is located in Louisa county Virginia with a geographic area of 1.8 square miles. The total population in Louisa is 1,810 with 47.2% male and 52.8% female. Children under age 5 represent 5.0% of the population, under age 18 equal 20.4% of the population and over age 65 is 26.2% of the population. The median household income is $35,515, per capita income is $29,921. There are a total of 851 housing units with 31.3% owner occupied. Education includes 21.7% of residents that are high school graduates and 29.5% with a bachelor's degree or higher. The average temperature in Louisa in the summer is 71 degrees, and in the winter 35 degrees.