Our Subsidiaries

We are the largest, investor-owned water and wastewater utility company in the United States.

Our regulated businesses currently provide water and wastewater services in 20 U.S. states. Our regulated subsidiaries are subject to economic regulation by state PUCs in Arizona, California, Hawaii, Illinois, Indiana, Iowa, Kentucky, Maryland, Missouri, New Jersey, New Mexico, New York, Ohio, Pennsylvania, Tennessee, Texas, Virginia and West Virginia.That means that in each state we operate, water quality and service rates are subject to extensive regulation by state PUCs, as well as environmental, health and safety and water quality regulations by federal, state and local governments. Our vast network of treatment plants, pumping stations, storage facilities, and approximately 45,000 miles of main and collection pipe, are all put to work each day to provide our customers with the highest-quality service.

Our 19 states subsidiaries are:  Arizona American Water  California American Water  Hawaii American Water  Illinois American Water  Indiana American Water  Iowa American Water  Kentucky American Water  Long Island American Water  Maryland American Water  Michigan American Water  Missouri American Water  New Jersey American Water  New Mexico American Water  Ohio American Water  Pennsylvania American Water  Tennessee American Water  Texas American Water  Virginia American Water  West Virginia American Water