Petersburg is located in Pike county Indiana with a geographic area of 1.5 square miles. The total population in Petersburg is 2,315 with 48.9% male and 51.1% female. Children under age 5 represent 4.4% of the population, under age 18 equal 17.1% of the population and over age 65 is 22.0% of the population. The median household income is $53,241, per capita income is $25,809. There are a total of 1,014 housing units with 67.6% owner occupied. Education includes 39.5% of residents that are high school graduates and 19.3% with a bachelor's degree or higher. The average temperature in Petersburg in the summer is 75 degrees, and in the winter 29 degrees.
