Welcome to Missouri American Water! We look forward to serving you. As your water and/or wastewater provider, we recognize the trust you – and approximately one in four Missourians – place in us to provide high-quality water and reliable wastewater service. Serving you is a responsibility we take very seriously.

We continuously monitor, maintain and upgrade our facilities to support efficient operations and meet regulatory standards. This requires investing in treatment plants, storage tanks, pipes, pump stations, fire hydrants, metering equipment and more.

We are invested in Missouri communities because we’re providing service to our neighbors, friends, and own families – something we’ve been doing for over 140 years.

Click here to view our Customer Rights and Responsibilities information.


Manage your account online, any time, day or night, with MyWater. Sign up today and from the comfort of your home:

mouse View and pay your bill

tools Turn water service on and off

caution Sign up for emergency alerts

drops Track water usage history

paper Manage your account

person Update your contact information

Sign up for paperless billing and enroll in automatic payments.

Payment Assistance

We know your Missouri American Water bill is not your only expense and understand that some customers may need financial assistance to keep service flowing. Click here for more information.

Water Quality

Missouri American Water provides water that meets or surpasses federal and state safety standards. We continuously monitor, maintain and upgrade our facilities to support efficient operations and meet regulatory standards. To view your community’s Annual Water Quality Report and learn more about various water quality topics, click here.

Wise Water Use

We are constantly looking for ways to make sure water is available for future generations. Part of that commitment includes helping our customers understand what they can do to help. Click here to learn how you can save water and money.

Contact Us

Customer service representatives can be reached at 1-866-430-0820. We are available Monday through Friday, 7 a.m. – 7 p.m. Our voice-activated phone system is available around the clock and can handle most frequently asked requests. In case of EMERGENCY, we are available 24 hours a day. Click here for more information.

For Developers

Are you a developer or property owner that’s looking to extend water service to a newly constructed home or business? If you are and would like to extend water and/or wastewater infrastructure to a new project either within or near an existing Missouri American Water service area, please visit our Developer Services Resource Page for more information. We look forward to working with you!