Kirklin is located in Clinton county Indiana with a geographic area of 0.4 square miles. The total population in Kirklin is 1,125 with 42.0% male and 58.0% female. Children under age 5 represent 11.7% of the population, under age 18 equal 27.5% of the population and over age 65 is 10.6% of the population. The median household income is $48,375, per capita income is $20,084. There are a total of 388 housing units with 64.4% owner occupied. Education includes 53.1% of residents that are high school graduates and 10.6% with a bachelor's degree or higher. The average temperature in Kirklin in the summer is 73 degrees, and in the winter 29 degrees.