Pickerington is a city in Fairfield and Franklin counties in the central region of the U.S. state of Ohio. It was founded in 1815 as Jacksonville. Pickerington was known as Jacksonville until 1827, when the citizens petitioned the state legislature to change the name to Pickerington in honor of its founder, Abraham Pickering. It is a suburb of Columbus. The population was 18,291 at the 2010 census.