<Tr> <Th> Most populous state </Th> <Td> California 19,953,134 </Td> </Tr> <Tr> <Th> Least populous state </Th> <Td> Alaska 302,173 </Td> </Tr> <P> The Nineteenth United States Census, conducted by the Census Bureau, determined the resident population of the United States to be 203,392,031, an increase of 13.4 percent over the 179,323,175 persons enumerated during the 1960 Census . </P> <P> Microdata from the 1970 census are freely available through the Integrated Public Use Microdata Series . Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System . These data were originally created and disseminated by DUALabs . Personally identifiable information will be available in 2042 . </P>

What was the population of the us in 1970