Payment Options

Due to continued escalation of the federal and state emergency related to the Coronavirus (COVID-19) Pandemic and the recent extension of the Shelter In Place order by the Health Officer of Sonoma County (Order No. C19-03), Town offices will remain closed to the public through December 2020, possibly longer.

The following options are to make it as convenient as possible to manage your utility account during this time. 

Administrative Services Department will be OPEN to accept utility billing payments on the following dates from 9:00 a.m. to 3:00 p.m.

Thursday, October 8
Friday, October 9
Monday, October 12
Wednesday, December 9
Thursday, December 10
Friday, December 11


Email or visit to view virtual forms

Start or Stop Water Service

Visit or Email

To Make a Payment - 4 Convenient Methods


  1. Online by visiting First time logging in: enter your utility account number as it appears on your statement (xx-xx-xxxxxxx-xx) not the customer number. 
  2. In Person at the Town's utility billing payment drop box located at 9291 Old Redwood Highway, Building 300 in front of the Windsor Police Department. 
  3. AutoPay via WaterSmart by visiting townofwindsor, First time logging in: enter your utility account number as it appears on your statement (xx-xx-xxxxxxx-xx) not the customer number. 
  4. Mail to P.O. Box 100, Windsor, CA 95492.

Delinquent Accounts

  • No penalties or late fees will be assessed to delinquent accounts.
  • No water service will be disconnected for non-payment.
  • Should you need assistance in making a payment, Payment Plans will be made available.


There are several ways to pay your utility bill.

  • Pay Your Bill Online
    • From the link above you will be redirected to the Town's WaterSmart portal. Once you have established a user account and are connected to your utility account, you have the following payment options:
      • Pay Online - we accept American Express, Visa or MasterCard (debit or credit card), and eCheck
      • AutoPay (AP) - you may elect to use your checking or savings account, and debit or credit card to automatically debit with the option to update or modify your credit card information anytime 
    • Go PAPERLESS by having your bi-monthly statement sent to your email address.
  • Other payment options:
    • Mail - send your payment and stub in the return envelope enclosed with your statement
    • Phone - contact us at 838-1004 to pay over the phone
    • In Person - visit us at 9291 Old Redwood Highway, Building 300A, Monday - Thursday 7:00 am to 6:00 pm
    • Drop Box - located at 9291 Old Redwood Highway, left of the Police Department main entrance