Horsham is located in Montgomery county Pennsylvania with a geographic area of 5.5 square miles. The total population in Horsham is 15,864 with 51.2% male and 48.8% female. Children under age 5 represent 5.3% of the population, under age 18 equal 22.3% of the population and over age 65 is 21.7% of the population. The median household income is $85,684, per capita income is $38,093. There are a total of 5,569 housing units with 66.7% owner occupied. Education includes 24.5% of residents that are high school graduates and 44.2% with a bachelor's degree or higher. The average temperature in Horsham in the summer is 73 degrees, and in the winter 33 degrees.