Leamington is the second largest municipality in the Windsor-Essex County area (after Windsor, Ontario), and has a population of 28,403. It includes Point Pelee, the southernmost point of mainland Canada. It has a large H. J. Heinz Company factory and is known as the "Tomato Capital of Canada", with 4 km² of this crop in the vicinity. It also lays claim to being the "Sun Parlour" of Canada due to its southern location.

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.

In the early hours of Sunday, June 6, 2010, an F1 tornado ripped through portions of southern Essex County, stretching from Harrow, through Kingsville, to southern Leamington before dissipating near Point Pelee National Park, creating considerable damage, but no loss of life or any direct injuries.

Ontario /ɒnˈtɛərioʊ/ is one of the provinces of Canada, located in east-central Canada. It is Canada's most populous province or territory and fourth largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa.

Ontario is bordered by the province of Manitoba to the west, Hudson Bay to the north, Quebec to the east, and to the south by the U.S. states of Minnesota, Michigan (portions to the west), New York (portions to the east), Ohio and Pennsylvania. All but a small part of Ontario's 2,700 km (1,677 mi) border with the United States follow inland waterways: from the west at Lake of the Woods, eastward along the major rivers and lakes of the Great Lakes/St. Lawrence River drainage system. These are the Rainy River, the Pigeon River, Lake Superior, the St. Mary's River, Lake Huron, the St. Clair River, Lake St. Clair, the Detroit River, Lake Erie, the Niagara River, Lake Ontario, and along the St. Lawrence River from Kingston, Ontario to the Quebec boundary just east of Cornwall, Ontario.