Kempner is located in Lampasas county Texas with a geographic area of 2.1 square miles. The total population in Kempner is 1,057 with 55.3% male and 44.7% female. Children under age 5 represent 4.7% of the population, under age 18 equal 21.4% of the population and over age 65 is 12.2% of the population. The median household income is $73,347, per capita income is $29,736. There are a total of 355 housing units with 72.7% owner occupied. Education includes 28.7% of residents that are high school graduates and 14.6% with a bachelor's degree or higher. The average temperature in Kempner in the summer is 83 degrees, and in the winter 49 degrees.