Historical U.S. census and vital records

150.7 million persons

Publications: https://www.census.gov/prod/www/decennial.html

179.3 million persons

Geography: Add Alaska, Hawaii as states.

Note: This is the first census for which the questionnaire was mailed in advance to each household, and completed by the individual and not by the census-taker.

Publications: https://www.census.gov/prod/www/decennial.html

203.3 million persons

Publications: https://www.census.gov/prod/www/decennial.html

226.5 million persons

Publications: https://www.census.gov/prod/www/decennial.html