Skip to Main Content

Kauaʻi Department of Water Home Page

Safe and Affordable Water Services for Kauaʻi

The Kauaʻi County Department of Water is dedicated to managing our water resources and providing excellent customer service to the people of Kauaʻi.

Learn More About Us Sign Up For Service

Meter and Transponder Replacement Project

The Department of Water is replacing meter transponder units as part of a multi-year project to upgrade its metering infrastructure. Find out how this may impact you and your billing statements.

Setting Up and Understanding Your Residential or Commercial Water Services

Do You Want to Set up or Transfer New Water Service for Your Home or Office?

Understand the process required, service rates and charges, and learn how to sign up for a new water service with ease.

Set Up a New Water Service

Do You Have Questions About Your Water Bill?

Learn how to read your water bill and understand how your service is being charged.

How to Read Your Bill

What Are My Payment Options?

Learn about all the ways you can pay for your bill.

Payment Options

News

DOW Celebrates the EPAʻs Fix A Leak Week March 17-23

March 12, 2025

The Department of Water (DOW) joins Mayor Derek S.K. Kawakami in proclaiming Kauaiʻs 14th Annual Fix a Leak Week from...

DOW Earns 4th WaterSense Award

September 26, 2024

The Department of Water, County of Kauaʻi earned their fourth WaterSense Award for Excellence in Education and Outreach. New in...

DOW Teaches Students Water Sustainability With Make a Splash

September 20, 2024

The Department of Water (DOW) hosted its 19th Make a Splash with Project WET festival for fifth grade students on...

Providing Water for Kauaʻi Residents

Explore some key statistics that reflect the services we provide across the island of Kauaʻi.

24,468
Water service connections
419.9 miles
Length of mainline pipes
13.69 mgd
Average daily water demand (in millions of gallons)
2.2
Average number of hydrants hit by cars per month