Census data provides numerical information about a country's population, dwellings, families, immigration and ethnocultural diversity, Aboriginal peoples, education, labour, mobility and migration, languages spoken, income, housing and more.
Canada's Census of Population (and concurrent Census of Agriculture) is collected every five years, most recently in 2011. Census data are searchable by geography or by topic, and are available from several sources and in many formats.
The United States Census Bureau provides access to all census data from their decennial Census of Population (most recent=2010) and Economic Census (2012).
Countries may implement a census through their own central statistical agencies. A single source of global census data including those that do not is provided by the United Nations Statistics Division.