Canada's electoral boundaries commissions oversaw a redrawing of Canada's electoral district (riding) map to accommodate 30 new federal ridings in Alberta, B.C., Ontario and Quebec and make adjustments to existing ridings.

This map tool from the commission allows you to find your current electoral district and compare it to boundaries considered by the commissions. Click "Existing" to see ridings as they have existed since 2004, and "New" to see boundaries for 2015 - and use the check boxes in the Legend to toggle the boundaries on and off.

Source: Electoral Boundaries Commissions