Sterling is located in Logan county Colorado with a geographic area of 7.6 square miles. The total population in Sterling is 14,421 with 56.5% male and 43.5% female. Children under age 5 represent 5.3% of the population, under age 18 equal 16.0% of the population and over age 65 is 17.1% of the population. The median household income is $40,956, per capita income is $22,930. There are a total of 5,341 housing units with 55.5% owner occupied. Education includes 36.6% of residents that are high school graduates and 21.7% with a bachelor's degree or higher. The average temperature in Sterling in the summer is 73 degrees, and in the winter 29 degrees.