Westfield is located in Hamilton county Indiana with a geographic area of 31.1 square miles. The total population in Westfield is 41,652 with 48.2% male and 51.8% female. Children under age 5 represent 7.0% of the population, under age 18 equal 29.1% of the population and over age 65 is 12.8% of the population. The median household income is $99,855, per capita income is $43,991. There are a total of 15,572 housing units with 79.0% owner occupied. Education includes 17.8% of residents that are high school graduates and 57.0% with a bachelor's degree or higher. The average temperature in Westfield in the summer is 73 degrees, and in the winter 29 degrees.
