This report presents 1970 census preliminary counts of the population of each Congressional District. The figures relate to the Congressional District boundaries used for election to the 91st Congress in November 1968. For the election of the 92nd Congress on November 3, 1970, six states (Arizona, Hawaii, Louisiana, Missouri, New Hampshire, and New York) will use a revised set of Congressional Districts; population figures for the new districts will be available in about 3 months.
Census statistics date back to 1790 and reflect the growth and change of the United States. Past census reports contain some terms that today’s readers may consider obsolete and inappropriate. As part of our goal to be open and transparent with the public, we are improving access to all Census Bureau original publications and statistics, which serve as a guide to the nation's history.