Spokane County, Washington — public water systems

163 active public water systems serve Spokane County, reporting 627.4K people served.

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

Active systems

163

Population served

627.4K

Community systems

Groundwater share

98.8%

Water systems in Spokane County

Active public water systems in Spokane County, Washington
#	Water system	County	Population served	Type	Source
1	Spokane City of	Spokane	343,167	Community	Groundwater
2	Whitworth Water District 2	Spokane	26,883	Community	Groundwater
3	Vera Water & Power	Spokane	24,692	Community	Groundwater
4	Consolidated Irrig Dist 19 System 2	Spokane	21,220	Community	Groundwater
5	Spo Co Water Dist 3 Sys 1	Spokane	18,983	Community	Groundwater
6	Modern Electric Water Co	Spokane	18,487	Community	Groundwater
7	Eastern Washington University	Spokane	17,108	Community	Groundwater
8	Cheney City of	Spokane	16,954	Community	Groundwater
9	Liberty Lake Sewer & Water District	Spokane	14,500	Community	Groundwater
10	Fairchild Air Force Base	Spokane	9,544	Community	Groundwater
11	Airway Heights City of	Spokane	9,489	Community	Groundwater
12	Consolidated Irrig Dist 19 System 1	Spokane	9,434	Community	Groundwater
13	Model Irrigation Dist #18	Spokane	7,903	Community	Groundwater
14	Pasadena Park Irr Dist 17	Spokane	6,269	Community	Groundwater
15	Spo Co Water Dist 3 Sys 4	Spokane	6,155	Community	Groundwater
16	Deer Park City of	Spokane	5,255	Community	Groundwater
17	Spokane Business & Industrial Park	Spokane	5,000	Non-transient non-community	Groundwater
18	Medical Lake City of	Spokane	4,982	Community	Groundwater
19	Orchard Avenue Irrigation Dist 6	Spokane	4,330	Community	Groundwater
20	East Spokane Water Dist 1	Spokane	4,285	Community	Groundwater
21	Trentwood Irrigation District 3	Spokane	4,228	Community	Groundwater
22	Irvin Water District #6	Spokane	4,150	Community	Groundwater
23	Spo Co Water Dist 3 Sys 3	Spokane	3,765	Community	Groundwater
24	Providence Shmc	Spokane	2,838	Non-transient non-community	Purchased groundwater
25	North Spokane Irrigation District 8	Spokane	2,214	Community	Groundwater
26	Hutchinson Irrigation Dist #16	Spokane	2,209	Community	Groundwater
27	Millwood City of	Spokane	1,925	Community	Groundwater
28	Moab Irrigation Dist #20	Spokane	1,790	Community	Groundwater
29	Carnhope Irrigation District 7	Spokane	1,602	Community	Groundwater
30	Riverside Sd Central Site Schools	Spokane	1,320	Non-transient non-community	Groundwater
31	Mount Spokane Ski #2	Spokane	1,301	Transient non-community	Groundwater
32	Whitworth University	Spokane	1,200	Community	Groundwater
33	Kaiser Alum - Trentwood Works	Spokane	954	Non-transient non-community	Groundwater
34	Freeman School Dist #358	Spokane	900	Non-transient non-community	Groundwater
35	Hangman Hills Water Dist 15	Spokane	827	Community	Groundwater
36	Wsdp Mt Spokane St Park #3	Spokane	679	Transient non-community	Groundwater
37	Wsdp Riverside Sp Orv Area	Spokane	651	Transient non-community	Groundwater
38	Fairfield Town of	Spokane	643	Community	Groundwater
39	Clear Lake Rec Area	Spokane	637	Transient non-community	Groundwater
40	Ridge Water Association	Spokane	615	Community	Groundwater
41	Rockford Town of	Spokane	570	Community	Groundwater
42	Consolidated Support Services	Spokane	569	Community	Groundwater
43	Stevens Co PUD - Spokane Lake Park	Spokane	532	Community	Groundwater
44	Stevens Co PUD - West Shore	Spokane	505	Community	Groundwater
45	Liberty School District #362	Spokane	486	Non-transient non-community	Groundwater
46	Spo Co Water Dist 3 Sys 5	Spokane	485	Community	Groundwater
47	Pioneer Water Company	Spokane	443	Community	Groundwater
48	Four Lakes Water District 10	Spokane	433	Community	Groundwater
49	Wsdp Mt Spokane State Park #6	Spokane	403	Transient non-community	Groundwater
50	Upper Columbia Academy	Spokane	380	Community	Groundwater