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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.

Learn More About Us DOW Public Meetings

Public Hearings

September 1, 2026

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 offices will be closed on Tuesday, September 8

September 7, 2026

In compliance with Governor Josh Green’s directive, due to the continuing impact of Hurricane Lowell, DOW offices will be closed...

Water conservation in effect for Kauaʻi 

September 7, 2026

LĪHUʻE – Effective immediately, the Department of Water (DOW) has issued a water conservation notice for the island of Kauaʻi due to...

Water conservation notice issued for Princeville, Kalihiwai Bay Estates, and Anini Road

September 6, 2026

*This notice will remain active until the conservation notice is lifted.PRINCEVILLE – Princeville Utilities Co., Inc. (PUCI) has issued a...

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