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

REMINDER: DOW invites the public to attend a discussion on the Kapaʻa Homesteads Tanks Project on July 1

June 24, 2025

LĪHUʻE – The Department of Water (DOW) reminds the community to attend an upcoming event to discuss the Kapaʻa Homesteads...

REMINDER: Water service shutdown scheduled for customers in Hanalei on June 25 

June 24, 2025

HANALEI – The Department of Water (DOW) reminds customers that a water service shutdown has been scheduled to take place...

Resurfacing scheduled on Poʻohiwi Road for June 23 to 27

June 23, 2025

KALĀHEO – The Department of Water (DOW) announces resurfacing work will occur along portions of Po’ohiwi Road beginning Monday, June...

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