Lexington is located in Lafayette County
, of which it is the county seat, 30 miles E of Kansas City
between Wellington and Dover along Highway 24 on the banks of the Missouri River near Battle of Lexington State Park. Site of Masonic College.
The population estimate for July 1, 1998 was 4,465, a decrease of 395 since 1990.
Lexington is part of the Kansas City, Missouri-Kansas metro area.