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Zip+4 and 10-digit account number, as printed on your bill, is required to pay bill using portal. Click here to pay.

Customer Service

We’re here to help with new accounts, billing inquiries, or if you need any additional assistance.

Water Emergencies

(808) 961-8790 – Call 24 hours a day, all districts. Broken mains, low water pressure, leaks.  

Lead and Copper Rule Revision

DWS to inspect selected Kona customers’ water service laterals

The Department of Water Supply (DWS), County of Hawai‘i, will begin inspecting selected Kona customers’ water service laterals on Monday,...
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DWS announces results of 6th Annual Keiki Water Conservation Poster Contest

May 30, 2024NEWS RELEASE FOR IMMEDIATE RELEASEWinners, Runners-Up Announced for Water Supply’s 6th Annual Keiki Water Conservation Poster ContestHAWAIʻI ISLAND...
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DWS to inspect selected Ka’ū customers’ water service laterals

May 13, 2024NEWS RELEASEFOR IMMEDIATE RELEASEDepartment of Water Supply to Inspect Selected Ka‘ū Customers’ Water Service LateralsThe Department of Water...
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The Department of Water Supply is a semi-autonomous agency of the County of Hawai‘i that is governed by the Water Board. Founded in 1949, its primary function is to provide domestic water service through its 23 water systems scattered throughout the Big Island. The Department continually strives to provide safe, dependable, high quality, potable water at a reasonable cost.