States and Metropolitan Areas
For TRI purposes, ”states” includes all U.S. territories. For 2017, all 56 states and territories had facilities that reported releases to the TRI Program. Texas, Ohio, and California had the most facilities that reported to TRI, and together accounted for 20% of total TRI-reporting facilities in 2017.
More than 80% of the United States’ population and many of the industrial facilities that report to the TRI Program are located in urban areas. "Metropolitan statistical areas" and "micropolitan statistical areas" in the United States are defined by the Office of Management and Budget (OMB) and consist of one or more socially and economically integrated adjacent counties, cities, or towns.
This page was published in March 2019 and uses the 2017 TRI National Analysis dataset made public in TRI Explorer in October 2018.