New castle is located in Henry county Indiana with a geographic area of 7.3 square miles. The total population in New castle is 17,234 with 49.3% male and 50.7% female. Children under age 5 represent 5.8% of the population, under age 18 equal 23.9% of the population and over age 65 is 17.9% of the population. The median household income is $42,803, per capita income is $21,249. There are a total of 6,951 housing units with 63.2% owner occupied. Education includes 46.5% of residents that are high school graduates and 14.3% with a bachelor's degree or higher. The average temperature in New castle in the summer is 71 degrees, and in the winter 29 degrees.
