Peru is located in Miami county Indiana with a geographic area of 5.5 square miles. The total population in Peru is 11,369 with 47.8% male and 52.2% female. Children under age 5 represent 5.3% of the population, under age 18 equal 22.6% of the population and over age 65 is 19.0% of the population. The median household income is $40,065, per capita income is $21,603. There are a total of 4,891 housing units with 66.1% owner occupied. Education includes 40.1% of residents that are high school graduates and 15.4% with a bachelor's degree or higher. The average temperature in Peru in the summer is 70 degrees, and in the winter 29 degrees.