​The 2014 Supplemental Tables provide high-level estimates based on 1-year data for geographies with populations of 20,000 or more. In this way they supplement the regular ACS 1-year data products, which adhere to a population threshold requirement of 65,000. The lower threshold of 20,000, however, has posed challenges for data reliability. Users can look to the reliability analysis documentation to learn more about how the 2014 Supplemental Tables adhere to the data reliability standards of the U.S. Census Bureau.