We currently use 2017 American Community Survey (ACS), based on a 5 year period from 2013 - 2017. For more information about our data layers, check out our data layers blog post. We bring in the latest and greatest ACS data as soon as the U.S. Census Bureau releases the national dataset we use. Updated U.S. demographic layers, statistics and Title VI can be expected every year in February/March. 

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