The Canada 1951 Census was a detailed enumeration of the Canadian population. The total population count was 14,009,429, representing a 21.8% increase over the 1941 Census population count of 11,506,655. The 1951 Census was the ninth comprehensive decennial census since Canadian Confederation on 1 July 1867. The following national census was the 1956 Census, the first mid-decade census to cover the entire country.
This was the first census to include Newfoundland, having joined Confederation only two years prior.
Ontario added the largest number of new residents since the 1941 census, while British Columbia saw the highest growth rate among the provinces, becoming the first western province to reach one million inhabitants. Saskatchewan experienced a second consecutive decade of population decline, falling behind both Alberta and British Columbia in size.