About South Lyon, Michigan
South Lyon is a city in Oakland County in the U.S. state of Michigan. The population was 11,327 at the 2010 census. The city is part of the South Lyon-Howell-Brighton Urban Area, which had a population of 106,139 according to the 2000 census. South Lyon is located in the far southwest corner of Oakland County and shares a border with Livingston and Washtenaw counties.