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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

Water service shutdown and lane closure scheduled for portions of Wailua Homesteads on Jan. 15

January 9, 2026

KAPAʻA – The Department of Water (DOW) announces a scheduled water service shutdown on a portion of Opaekaa Road, a...

LĪHUʻE - Lalei Place, Palai Street, and Kaana Street

January 8, 2026

LĪHU‘E – The Department of Water (DOW) announces a scheduled water service shutdown on Wednesday, January 14, from 9 a.m....

Kawaihau Road utility work and one-lane closures extended through Feb. 28

January 2, 2026

Kawaihau Road utility work and one-lane closures extended through Feb. 28 KAPAʻA – Hawaiian Dredging Construction Company Inc., under contract...

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