This is page shows results of Canadian federal elections in Midwestern Ontario, which is roughly from Woodstock to Milton, and from Lake Erie to Goderich.
Before the late 1950s, Midwestern Ontario had not leaned towards either the Progressive Conservatives (Tories) or the Liberals (Grits) on a regular basis as there was wide variation in each party's results from election to election.
Vote splitting allowed the Liberals to win all of the seats in Midwestern Ontario from 1993 to 2000 in their province-wide sweeps, although the seat of Perth—Wellington was lost to the Progressive Conservatives in a 2003 by-election following the resignation of the outgoing Liberal MP.
The riding of the more suburban city of Cambridge has generally leaned Conservative dating back decades whereas the riding of Brant-Brantford has switched from being strongly NDP to Liberal to Conservative in the last three decades.
In 2019 the Greens were able to gain over 25 percent of the vote in two urban ridings, Guelph and Kitchener Centre.