Ontario Highway Map
Complete provincial highway network including the 400-series.
Map of Whitby, a town on Lake Ontario between Ajax and Oshawa, the seat of Durham Region.
Last reviewed on April 27, 2026
Whitby has a historic downtown around Brock and Dundas Streets and a Lake Ontario waterfront with marinas and beaches. Trafalgar Castle, a private school based in a 19th-century mansion, is a notable heritage landmark.
Highway 401 cuts through the town, and Highway 412 connects north to Highway 407. The Lakeshore East GO line stops at Whitby.
Downtown Whitby, Port Whitby on the lake, Brooklin (a former village to the north now part of Whitby), Pringle Creek, Williamsburg, and the Taunton corridor are the town's main areas.
Whitby is part of Greater Toronto Area / Durham Region, with a population of approximately 140,000. For broader context, see the Southern Ontario regional map and the Ontario map with cities.
Other useful maps for trips through this part of Ontario