Petersburg is located in Boone county Kentucky with a geographic area of 6.3 square miles. The total population in Petersburg is 368 with 46.5% male and 53.5% female. Children under age 5 represent 5.2% of the population, under age 18 equal 24.5% of the population and over age 65 is 23.1% of the population. The median household income is $88,611, per capita income is $27,019. There are a total of 114 housing units with 100.0% owner occupied. Education includes 33.3% of residents that are high school graduates and 36.0% with a bachelor's degree or higher. The average temperature in Petersburg in the summer is 76 degrees, and in the winter 36 degrees.
