Carlock is located in Mclean county Illinois with a geographic area of 0.4 square miles. The total population in Carlock is 623 with 53.6% male and 46.4% female. Children under age 5 represent 6.9% of the population, under age 18 equal 34.7% of the population and over age 65 is 7.2% of the population. The median household income is $69,167, per capita income is $30,245. There are a total of 212 housing units with 84.9% owner occupied. Education includes 36.3% of residents that are high school graduates and 30.2% with a bachelor's degree or higher. The average temperature in Carlock in the summer is 74 degrees, and in the winter 27 degrees.