London, Ohio

London, Ohio
Main Street downtown
Motto(s): 
A proud heritage, a promising future
Location of London in Madison County
London
London
Coordinates: 39°53′15″N 83°26′32″W / 39.88750°N 83.44222°W / 39.88750; -83.44222
CountryUnited States
StateOhio
CountyMadison
Government
  TypeMayor-council
  MayorPatrick J. Closser
Area
  Total
8.41 sq mi (21.77 km2)
  Land8.40 sq mi (21.75 km2)
  Water0.01 sq mi (0.03 km2)
Elevation
1,047 ft (319 m)
Population
 (2020)
  Total
10,279
  Density1,224.13/sq mi (472.65/km2)
Time zoneUTC−5 (Eastern (EST))
  Summer (DST)UTC−4 (EDT)
ZIP code
43140
Area code740
FIPS code39-44674
GNIS feature ID1086545
WebsiteCity website

London is a city in and the county seat of Madison County, Ohio, United States. Located about 25 miles (40 km) southwest of the Ohio capital of Columbus, London was established in 1811 to serve as the county seat. The population was 10,279 at the 2020 census. It is part of the Columbus metropolitan area.