Alternative channels
Mail, text, and in-person payment instructions
Pay by text
A dedicated this detail was not publicly posted. The reviewed Missouri American Water Joplin pages advertise MyWater alerts and paperless billing but do not publish a text-to-pay keyword or SMS enrollment sequence.
Mail-in address
Missouri American Water, P.O. Box 6029, Carol Stream, IL 60197-6029. The company requests that payment be sent with the payment stub and that customers send no cash, staples, or paper clips.
Counters, drop boxes, and office hours
Missouri American Water permits payment at authorized barcode-enabled payment locations; the customer must bring the bill or know the amount due. The reviewed Joplin pages do not expose a complete location-and-hours list. Customer service is 1-866-430-0820 Monday through Friday 7:00 a.m. to 7:00 p.m.; voice self-service and emergency response operate 24/7.