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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.

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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

Water conservation request continues for residents in Hanalei and ʻAnini

April 23, 2025

HANALEI AND ʻANINI – Water conservation measures remain in place for residents on Kauaiʻs north shore.  Department of Water (DOW)...

REMINDER:  Enter to win a 50-gallon rain barrel from DOW

April 21, 2025

LĪHUE – The Department of Water (DOW) reminds residents that thereʻs still time to enter the April grand prize drawing...

Water conservation request continues for Hanalei and ‘Anini areas until further notice

April 9, 2025

HANALEI AND ʻANINI – The Department of Water (DOW) reminds customers in the Hanalei community and ʻAnini Beach areas to...

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