Illinois was estimated to have the most lead service lines (LSL) in the United States as of 2021, at more than 679,000 units. Ohio was also estimated to have more than 600,000 LSLs at the time. Drinking water from lead pipes can have harmful health effects to humans, and a high enough exposure to this metal can result in death. New lead pipes were banned at a federal level in the United States in 1986, but as many as 12 million are estimated to still be in use across the country.
States with the most lead service lines (LSL) in the United States as of July 2021
(in 1,000s)
* States that have submitted updated lead service line (LSL). Figures for states that did not provide estimates were estimated based on a water industry self survey in 2016.
Figures are high estimates.
Values have been rounded.
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Natural Resources Defense Council. (August 21, 2021). States with the most lead service lines (LSL) in the United States as of July 2021 (in 1,000s) [Graph]. In Statista. Retrieved November 23, 2024, from https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/
Natural Resources Defense Council. "States with the most lead service lines (LSL) in the United States as of July 2021 (in 1,000s)." Chart. August 21, 2021. Statista. Accessed November 23, 2024. https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/
Natural Resources Defense Council. (2021). States with the most lead service lines (LSL) in the United States as of July 2021 (in 1,000s). Statista. Statista Inc.. Accessed: November 23, 2024. https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/
Natural Resources Defense Council. "States with The Most Lead Service Lines (Lsl) in The United States as of July 2021 (in 1,000s)." Statista, Statista Inc., 21 Aug 2021, https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/
Natural Resources Defense Council, States with the most lead service lines (LSL) in the United States as of July 2021 (in 1,000s) Statista, https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/ (last visited November 23, 2024)
States with the most lead service lines (LSL) in the United States as of July 2021 (in 1,000s) [Graph], Natural Resources Defense Council, August 21, 2021. [Online]. Available: https://www.statista.com/statistics/1361003/lead-water-service-lines-united-states-by-state/
