Department of Water Supply

  1. SOURCE WATER PROTECTION VIDEO CONTEST

    DEADLINE EXTENDED TO April 7, 2017
    The Department of Water Supply is currently holding a Source Water Protection Video Contest. This contest is open to all Maui County public, private and home-schooled high school students from grades 9 to 12 Read on...
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Our Mission


The Department of Water Supply is an agency of the County of Maui. Our mission is to provide clean water efficiently. We provide water to approximately 35,700 services on Maui and Molokai. The water we provide meets all state and federal water quality standards. Take a look around our site to learn more. The Department needs your help! Please conserve water. For easy ways to use less water (and save money), see our tips on Water Conservation.

What's New:


View your Water Bill Information
Customers can view their water bills, access account information and request electronic bill presentment online by creating an account here:
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Telephone & Online Payment


You may pay your water bill on-line by using the links below or by telephone at the toll free number posted below.
* Please have available your 10 digit water account number to make a payment.

Residential Commercial Payment by Phone
Online Bill Pay Commercial Online Bill Payment Pay by Phone 855-385-4836
855-385-4836

Commercial Payments Residential Payment