Known since the 20th century as the "Tomato Capital of Canada", it is the location of a tomato processing factory owned by Highbury-Canco; founded in 1908, the plant was owned until 2014 by the H. J. Heinz Company. Due to its location in the southernmost part of Canada, Leamington uses the motto "Sun Parlour of Canada".

Leamington was incorporated as a village in 1876. It was a crossroads hamlet with about 300 residents and was known for its lumber products rather than its tomatoes. There were several docks, and fish were plentiful in Lake Erie, so much so that sturgeon could be speared from the shore and fish was the cheapest food available. Leamington once had many tobacco farms but now they are virtually nonexistent. In 1908 the H. J. Heinz company came to Leamington, bringing many jobs to the area and contributing to Leamington's growth.

The majority of people from Leamington speak English. According to the 2006 census, 16,915 speak English only, 8460 male and 8460 female. Around 600 people speak French due to the French school, 10,840 speak other languages such as German, Spanish and Arabic, and 45 speak English and French.

Elementary

Leamington has six public elementary schools, Margaret D. Bennie, Mill Street, Queen Elizabeth, Gore Hill, Mount Carmel - Blytheswood Public School and East Mersea. Leamington has two Catholic elementary schools: Queen of Peace and Saint Louis. Leamington also has one French speaking Catholic School, St. Michel. South Shore Christian School is a private elementary school located in Leamington. Leamington has two main school boards the Greater Essex County District School Board and the Windsor-Essex Catholic School Board.

Secondary

Leamington has three secondary schools: Leamington District Secondary School (LDSS); Cardinal Carter Catholic High School (Leamington), and U.M.E.I (United Mennonite Education Institute).