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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

Meter and Transponder Replacement Project

The Department of Water is actively replacing meter transponder units as part of the Meter and Transponder Replacement Project. We’re taking steps to ensure accurate readings of your actual water consumption.

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

Department of Water's lobby and offices will be closed on Monday, August 17

August 16, 2026

Governor Green has declared that – Monday, August 17th – All state-wide School and County offices will be closed due...

Water conservation notice issued for Kekaha

August 16, 2026

KEKAHA - The Department of Water (DOW) has issued an immediate water conservation notice for the Kekaha service area due...

UPDATE: Water service outage for the Hāʻena-Wainiha service areas

August 16, 2026

9:30 p.m. UPDATE: Water service is being restored. DOW crews have restored power using a generator, and the system is...

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