The district includes the northwest part of the City of London.

In 2005, it was defined to consist of the part of the city lying north and west of a line drawn from the western limit of the city along Dingman Creek, Southdale Road West, Wharncliffe Road South, Commissioners Road East, the Canadian National Railway, the Thames River, Wharncliffe Road North, Oxford Street West and Wonderland Road North.

The long-time MPP Chris Bentley resigned his seat in the legislature effective on February 14, 2013.

This riding has elected the following members of the Legislative Assembly of Ontario: The 2013 by-election in London West was called when Chris Bentley resigned his seat in the wake of the scandal regarding the cancellation of the gas plants in the 2011 election.

2013 nomination contests ^ Change based on redistributed results [8]