| American Community Survey: 3-Year Estimates: Comparison Profiles 3-Year | The American Community Survey (ACS) is an ongoing survey that provides data every year -- giving communities the current information they need to plan investments and services. The ACS covers a broad range of topics about social, economic, demographic, and housing characteristics of the U.S. population. The comparison profiles include the following geographies: nation, all states (including DC and Puerto Rico), all metropolitan areas, all congressional districts, all counties and all places with a population of 5,000 or more. Comparison profiles are similar to data profiles but also include comparisons with past-year data. The current year data are compared with prior 5-Year data and include statistical significance testing. There are over 3,000 variables in this dataset. | 2013 | acs› acs3› cprofile | Aggregate | geographies | variables | groups | sorts | examples | documentation | http://api.census.gov/data/2013/acs/acs3/cprofile |