Sister Bay Utilities currently bills for water and sewer services quarterly. Billing cards are mailed out by the tenth day of the month following the end of each calendar quarter. Example: Customer usage for the first quarter is calculated from January 1st through March 31st, and billing cards will be mailed by April 10th.

The Utilities Clerk is available to answer billing questions by phone Monday through Friday between 8:00 A.M. and 4:00 P.M. at 920-854-4118. Questions can also be sent to [email protected] at any time.


If you are interested in paperless billing or any of the online payment options available please click the following logo to be directed to the Xpress Bill Pay website.




If you are interested in our Direct Pay option, please complete, sign, and return the Direct Authorization Form (link below) with a voided check to the Utilities. Once your information has been verified, the reminder “DO NOT PAY, DEDUCTED ON DUE DATE” will appear on your billing card and the total will automatically be deducted from your checking account on the due date.

Click Here to Access The Direct Pay Authorization Form