Leamington is a municipality in Essex County, Ontario, Canada. With a population of 27,595, it is the second largest municipality in the Windsor-Essex County area. It includes Point Pelee, the southernmost point of mainland Canada. Known as the "Tomato Capital of Canada", it is the location of a tomato processing factory owned by Highbury-Canco, previously owned until 2014 by the H. J. Heinz Company.