Hawaii County, Hawaii Water Systems

Hawaii County, Hawaii

49 community water systems on record — 37 active, 12 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Hawaii’s official records. Always confirm current status with Hawaii before making decisions based on this information.

Community water systems in Hawaii County, Hawaii

System name	City	Population served	Status
DAVIES-HAMAKUA SUGAR CO	—	200	Inactive
DAVIES-HAMAKUA SUGAR CO	—	25	Inactive
HAINA	HILO	4,563	Active
HAKALAU	—	45	Inactive
HAKALAU-WAILEA	HILO	402	Active
HALAULA	—	606	Inactive
HAWAII VOLCANOES NAT.PARK	HAWAII NATIONAL PARK	4,201	Active
HAWAIIAN BEACHES	PAHOA	3,546	Active
HAWAIIAN OCEAN VIEW ESTATES	HILO	1,000	Active
HAWAIIAN SHORES	PAHOA	1,360	Active
HILO	HILO	39,477	Active
HONOMU	HILO	645	Active
KALAPANA	HILO	275	Active
KAPOHO	HILO	340	Inactive
KAUPULEHU	KAILUA-KONA	1,945	Active
KAWAIHAE UNIT #1	KAMUELA	193	Active
KEOPU WATER ASSOCIATION	HOLUALOA	250	Active
KOHALA RANCH WATER CO.	KAMUELA	850	Active
KONA WATER SERVICE COMPANY	WAIKOLOA	260	Active
KUKUIHAELE	HILO	483	Active
KULANI CORRECTIONAL FACILITY	HILO	250	Inactive
LALAMILO	HILO	1,895	Active
LAUPAHOEHOE-KAPEHU	HILO	1,169	Active
MATSUMOTO	—	502	Inactive
MAUNA KEA SUGAR	—	83	Inactive
NAPUU WATER INC.	KAILUA KONA	468	Active
NINOLE	HILO	151	Active
NIULII	HILO	254	Active
NORTH KOHALA	HILO	4,933	Active
NORTH KONA	HILO	29,581	Active
OLAA-MOUNTAIN VIEW	HILO	6,467	Active
OOKALA (DWS)	HILO	264	Active
OOKALA HAMAKUA	—	200	Inactive
PAAUHAU HAMAKUA SGR	—	300	Inactive
PAAUILO	—	468	Inactive
PAAUILO	HILO	716	Active
PAHALA	HILO	1,226	Active
PAHOA	HILO	1,885	Active
PAPAALOA	—	260	Inactive
PAPAIKOU	HILO	2,203	Active
PEPEEKEO	HILO	1,450	Active
PEPEEKEO WATER ASSOCIATION	HILO	60	Active
PUNALU'U	HONOLULU	200	Active
SOUTH KOHALA	HILO	9,612	Active
SOUTH KONA	HILO	6,512	Active
WAIKI'I RANCH	KAMUELA	102	Active
WAIKOLOA	WAIKOLOA	12,100	Active
WAIOHINU-NAALEHU	HILO	2,948	Active
WOOD VALLEY	PAHALA	75	Active