Boundaries - Federal Electoral District Boundaries

Representation in the House of Commons is readjusted after each decennial (10-year) census to reflect changes and movements in Canada's population, in accordance with the Constitution Act, 1867, and the Electoral Boundaries Readjustment Act.

Readjustment of federal electoral boundaries is carried out by independent commissions. Ten federal electoral boundaries commissions are established, one for each province, to consider and report on any changes required to the boundaries of the electoral districts.

Pursuant to section 17 of the Electoral Boundaries Readjustment Act, the Surveyor General provides technical advice and recommendations for unambiguously describing electoral district boundaries to each commission, in order to enable the commission to discharge its duties under the Act.
 
Find out more about the readjustment process on Elections Canada’s web site.