Canada is divided into 308 electoral districts, also known as ridings or constituencies. An electoral district is a geographical area represented by a member of Parliament (MP). The citizens in each electoral district elect one MP who sits in the House of Commons to represent them, as well as all Canadians.
Canadian citizens who are 18 years old or older may run in a federal election. The people who run for office are called candidates. There can be many candidates in an electoral district.