IPUMS-USA

The Integrated Public Use Microdata Series (IPUMS) consists of sixty high-precision samples of the American population drawn from fifteen federal censuses, from the American Community Surveys of 2000-2011, and from the Puerto Rican Community Surveys of 2005-2011. The IPUMS assigns uniform codes across all the samples and brings relevant documentation into a coherent form to facilitate analysis of social and economic change.