Map of Western Ontario

Explore Western Ontario's southwestern peninsula including London, Windsor, Sarnia, Chatham-Kent, and the scenic Great Lakes shoreline. Free printable map with cities, towns, and major highways.

About Western Ontario

Western Ontario, often referred to as Southwestern Ontario, occupies the southwestern peninsula of the province bounded by Lake Huron to the north, Lake Erie to the south, and Lake St. Clair and the Detroit River to the west. This economically vital and agriculturally productive region is home to approximately 2.5 million people and features a diverse landscape of fertile farmland, Great Lakes beaches, industrial centers, and charming historic communities. Western Ontario's strategic location adjacent to the United States, particularly Michigan, has shaped its economy and cultural character for generations.

London serves as the region's largest city and cultural hub, offering world-class healthcare, post-secondary education at Western University, and diverse manufacturing. Windsor, directly across from Detroit, anchors the automotive industry and serves as Canada's busiest commercial border crossing. Sarnia, at the southern tip of Lake Huron, is the heart of Ontario's petrochemical industry and "Chemical Valley." Other significant communities include Chatham-Kent with its agricultural heritage, Stratford famous for its Shakespearean Festival, St. Thomas, Woodstock, and Leamington—known as Canada's tomato capital and greenhouse vegetable center.

Western Ontario's economy combines advanced manufacturing (especially automotive and petrochemical), agriculture (grains, vegetables, tobacco, orchards), food processing, tourism, and education. The region features some of Canada's most productive farmland, extensive Great Lakes shoreline, provincial parks, and heritage sites. Major transportation arteries include Highway 401, Highway 402 connecting to Sarnia, and numerous roads serving the agricultural interior. Western Ontario's blend of industrial strength, agricultural abundance, natural beauty, and proximity to major American markets makes it an economically significant and culturally distinct part of Ontario.

Major Cities in Western Ontario

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