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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

4 PM, June 17, UPDATE: Changes to intersection closures on Kūhiō Highway in Hanalei for June 18  

June 17, 2025

HANALEI – The Department of Water (DOW) announces that the planned intersection closure at Kūhiō Highway with ʻAnae Road, is...

4 PM, June 17, UPDATE: Changes to the areas for the water service shutdown in Hanalei on June 18 

June 17, 2025

HANALEI – The Department of Water (DOW) announces a change to the water service shutdown areas scheduled for June 18,...

Water service shutdown scheduled for customers in Hanalei on June 18

June 10, 2025

HANALEI – The Department of Water (DOW) has scheduled a water service shutdown on Wednesday, June 18, from 9 a.m....

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