Census, 1940 (16th). Population. 16th decennial census of population, statement giving whole number of persons in each State as ascertained under 16th decennial census of population, and number of Representatives to which each State would be entitled under apportionment of existing number of Representatives by method known as method of major fractions, which was method used in last preceding apportionment, and also by method known as method of equal proportions.