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Business Hours: 7 a.m. - 7 p.m. M-F
Self service options 24/7
Report an Emergency – 24/7

TDD: 711
Reference 1-866-430-0820

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Experience shorter wait times from Tuesday to Friday between 11:00 a.m and 4:00 p.m.
Longer wait times can be expected on Monday's, the first business day of the month, and the first business day after a holiday

Prefer to manage your account online without talking to a customer service representative? With MyWater and Our Advanced Voice Activated System, you can do just that!

  • Online: Sign up for MyWater (, our self-service tool that allows you to manage your account online (be sure to have your account number handy if you're logging on for the first time).
  • Advanced Voice Activated System: Call us, but no need to wait for a live customer service rep. Our advanced voice activated system can handle our most frequently asked customer service requests.

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Missouri American Water
P.O. Box 6029
Carol Stream, IL 60197-6029

Please send written correspondence to PO Box 2798, Camden, NJ 08101. Be sure to include your name, account number, service address, mailing address and phone number including area code. Please do not send correspondence with your payment, as it may delay processing your payment and correspondence.

Career Opportunities
Browse our available openings.

Investor Relations
Visit our Investor Relations website

Economic Development
For more information, please contact:

Government Relations
For more information, please contact:
Ken Franklin
Government Relations Manager
Office: (314) 996-2320

Media and Press Inquiries

Email the President
Providing you with the best customer service is our priority. If you have a question or concern that needs immediate attention, please call our Customer Service Center at 1-866-430-0820. If you have an issue that could not be resolved through our online self-service tools or by contacting our Customer Service Center, feel free to e-mail our company President at Be sure to include as much information as you can (name, address, account number, type of issue, best contact method, etc.). Please allow 1-2 business days for a response.