London in Madison County is located 25 miles southwest of Columbus, Ohio. It was established in 1811 and has a population of almost 10,000 residents. London serves as the county seat for Madison County. Its population exploded in the 1900s when Columbus residents sought to move towards a more rural community. Many residents today work in Columbus. A note of fame: The London water tower, fire department and high school were featured in a Nike commercial (called Find Your Greatness) that promoted the 2012 Olympics.