Hammond is located in Lake county Indiana with a geographic area of 22.7 square miles. The total population in Hammond is 76,141 with 48.4% male and 51.6% female. Children under age 5 represent 6.0% of the population, under age 18 equal 25.4% of the population and over age 65 is 11.9% of the population. The median household income is $46,974, per capita income is $22,901. There are a total of 28,836 housing units with 61.4% owner occupied. Education includes 38.2% of residents that are high school graduates and 16.5% with a bachelor's degree or higher. The average temperature in Hammond in the summer is 71 degrees, and in the winter 29 degrees.