Alternative channels
Mail, text, and in-person payment instructions
Pay by text
Illinois American Water uses MyWater for account management and emergency-alert preferences; the bill-payment page can text a bill barcode for authorized in-person payment. The reviewed official materials do not publish a text-to-pay keyword or SMS payment enrollment sequence.
Mail-in address
Illinois American Water, P.O. Box 6029, Carol Stream, IL 60197-6029. Include the payment stub and do not send cash, staples, or paper clips.
Counters, drop boxes, and office hours
The Illinois American Water Belleville office at 100 N. Water Works Drive, Belleville, IL 62223 accepts check, money order, credit card, and debit card payments Monday-Friday, 7:00 a.m.-3:00 p.m., excluding holidays. Authorized barcode payment locations are also available across the service territory; store hours and same-day posting vary by location.