A riding (also called constituency or electoral district) is a geographic area that elects one representative to Parliament or a provincial legislature. Canada has 338 federal ridings, each electing one Member of Parliament (MP). Provincial ridings elect Members of the Legislative Assembly (MLAs) or equivalent. Electoral boundaries commissions periodically redraw riding boundaries to reflect population changes, aiming for roughly equal population per riding. Ridings provide geographic representation, ensuring all areas of the country have elected representatives. Municipal elections may use wards (similar concept) or at-large voting where council members represent the entire municipality rather than specific geographic areas.