Water bills are sent out monthly and are due within 20 days of the billing date. 
Payment Media Release 01/09/17 regarding DOXO payment service - Click Here 

Payments can be made in any of the following ways:

Automatic Payment Plan - electronic payment information is set up on the utility account and will automatically take the payment from either your checking or savings account on the due date.  To sign up for electronic payments complete the application and return it with a “Voided” check.  There is no charge for this service.

Online Payments - under "RESIDENTS" tab click on "Pay City Utility Bill Online" which will take you to the Payment Service Network (PSN) site or go directly to  From there you can make a payment, opt to receive e-mailed bills, and view your bill.  Credit cards are accepted for on-line payments, however, you will be charged a nominal fee. 

 PSN hints:  

  • When setting up your account, enter the utility account number without the dashes;
  • Make sure to enter the name(s) exactly as it appears on your bill;
  • You can set up an account through PSN just to view your bills online!  You can  continue to make payments in any method you want to and you can continue to receive a copy of the bill through the mail too!
  • If you need any help setting up your online account, please contact PSN at their toll-free phone number 1-866-917-7368.
  • We accept Visa, Mastercard, Discover or e-Check online or by phone through  PSN.
  •  Address changes cannot be made through PSN, you do need to contact our office directly at (920)262-4075.
Payments by Phone - Call Payment Service Network toll free at 1-877-885-7968 to pay by phoneCredit cards are accepted for payments made by phone, however, you will be charged a nominal fee.

In person or By Mail -
 make payments by cash, check or money order at City Hall from 8:00 a.m. to 4:30 p.m., Monday-Friday or mail payments to the Water Department at P.O. Box 477, Watertown, WI 53094-0477.  Make checks payable to "Watertown Water Department"

City Hall has a drop box built into the west wall of the front entrance, for payments being made after hours.

A late payment charge of 1 percent per month will be added to bills not paid within 20 days of issuance.  This late payment charge will be applied to the total unpaid balance for utility service, including unpaid late payment charges.  The utility customer or property owner may be given a written notice that the bill is overdue no sooner than 20 days after the bill is issued.  Unless payment or satisfactory arrangement for payments is made within the next eight days, service may be disconnected pursuant to Chapter PSC 185, Wisconsin Administration Code.  Any bills not paid by the September due date will begin the process to be placed on the property owners taxes.