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.

Paperless billing and several online payment options are available at no additional cost; all customers are encouraged to sign-up for any of these time-saving services. Please go to the Forms section for more information.

The Utilities Clerk is available to answer billing questions by phone Monday through Friday between 7:00 A.M. and 3:00 P.M. at 920-854-4118. Questions can also be sent to at any time.