Grays Harbor County, Washington — public water systems

88 active public water systems serve Grays Harbor County, reporting 88.9K people served.

Dataset updated July 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

88.9K

Community systems

Groundwater share

96.6%

Water systems in Grays Harbor County

Active public water systems in Grays Harbor County, Washington
#	Water system	County	Population served	Type	Source
1	Aberdeen City of	Grays Harbor	22,867	Community	Surface water
2	Hoquiam Water Department	Grays Harbor	11,456	Community	Surface water
3	Ocean Shores Water Dept	Grays Harbor	9,347	Community	Groundwater
4	Elma City of	Grays Harbor	6,638	Community	Groundwater
5	Montesano City of	Grays Harbor	6,204	Community	Groundwater
6	Westport Water Department	Grays Harbor	5,346	Community	Groundwater
7	Grays Harbor Co Water Dist 2	Grays Harbor	5,112	Community	Groundwater
8	Mccleary City of	Grays Harbor	2,753	Community	Groundwater
9	Pacific Beach/Moclips	Grays Harbor	2,372	Community	Groundwater
10	Cosmopolis Water Department	Grays Harbor	1,812	Community	Purchased surface water
11	Hogans Corner	Grays Harbor	1,458	Community	Groundwater
12	Oakville City of	Grays Harbor	1,325	Community	Groundwater
13	Grays Harbor Co Water Dist 1	Grays Harbor	1,302	Community	Groundwater
14	Elma Rest Area	Grays Harbor	1,122	Transient non-community	Groundwater
15	Lake Quinault	Grays Harbor	1,003	Community	Groundwater
16	Illahee Oyehut	Grays Harbor	971	Community	Purchased groundwater
17	Ocean Breeze Resort	Grays Harbor	687	Transient non-community	Groundwater
18	Satsop Business Park	Grays Harbor	544	Non-transient non-community	Groundwater under influence of surface water
19	Wynoochee Wildwood Park	Grays Harbor	471	Transient non-community	Groundwater
20	Ocean Shores Outdoor Club	Grays Harbor	309	Transient non-community	Groundwater
21	Griffith Priday State Park	Grays Harbor	280	Transient non-community	Groundwater
22	Surfcrest Properties LLC	Grays Harbor	256	Transient non-community	Groundwater
23	Greenwood Mobile Home Park	Grays Harbor	240	Community	Groundwater
24	Ocean City	Grays Harbor	237	Community	Groundwater
25	Neilton Meadowland Wd 8 A	Grays Harbor	222	Community	Groundwater
26	Meadowood Development	Grays Harbor	220	Community	Groundwater
27	Monte View Estates	Grays Harbor	200	Community	Groundwater
28	Malone	Grays Harbor	181	Community	Groundwater
29	Green Lantern Pub	Grays Harbor	175	Transient non-community	Groundwater
30	Sea View	Grays Harbor	170	Community	Groundwater
31	Coho Campground	Grays Harbor	152	Transient non-community	Groundwater
32	Briggs Nursery	Grays Harbor	150	Non-transient non-community	Groundwater
33	Country Estates	Grays Harbor	150	Community	Groundwater
34	Haven By the Sea	Grays Harbor	145	Community	Groundwater
35	Gold Beach Aviation	Grays Harbor	134	Transient non-community	Groundwater
36	Iron Springs Resort	Grays Harbor	120	Transient non-community	Groundwater
37	Clarks Restaurant	Grays Harbor	109	Transient non-community	Groundwater
38	Humptulips Grocery	Grays Harbor	105	Transient non-community	Groundwater
39	Bay City Sausage	Grays Harbor	104	Transient non-community	Groundwater
40	South Arbor	Grays Harbor	101	Transient non-community	Groundwater
41	Humptulips Grange #730	Grays Harbor	100	Transient non-community	Groundwater
42	Forestview Senior Community LLC	Grays Harbor	92	Community	Groundwater
43	Ocean Spray Cranberries	Grays Harbor	90	Non-transient non-community	Groundwater
44	Bay City Properties	Grays Harbor	90	Community	Groundwater
45	Screamin Eagle Campground	Grays Harbor	86	Transient non-community	Groundwater
46	Vaughan Pumps	Grays Harbor	85	Non-transient non-community	Groundwater
47	Murphy Elma Veneer	Grays Harbor	80	Non-transient non-community	Groundwater
48	Oceana Ii East	Grays Harbor	80	Transient non-community	Groundwater
49	Paradise Water Assoc	Grays Harbor	74	Community	Groundwater
50	Harbor Mobile Estates	Grays Harbor	72	Community	Groundwater