Twin Falls County, Idaho — public water systems

53 active public water systems serve Twin Falls County, reporting 75.9K people served.

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

Active systems

Population served

75.9K

Community systems

Groundwater share

100%

Water systems in Twin Falls County

Active public water systems in Twin Falls County, Idaho
#	Water system	County	Population served	Type	Source
1	Twin Falls City of	Twin Falls	56,121	Community	Groundwater
2	Kimberly City of	Twin Falls	5,359	Community	Groundwater
3	Buhl City of	Twin Falls	4,518	Community	Groundwater
4	Filer Water Works	Twin Falls	2,858	Community	Groundwater
5	Hansen City of	Twin Falls	1,200	Community	Groundwater
6	Lds Church Kimberly Sc	Twin Falls	659	Transient non-community	Groundwater
7	Amalgamated Sugar Twin Falls	Twin Falls	460	Non-transient non-community	Groundwater
8	Lds Church Murtaugh	Twin Falls	451	Transient non-community	Groundwater
9	Twin Falls City County Airport	Twin Falls	410	Non-transient non-community	Groundwater
10	Chobani	Twin Falls	390	Non-transient non-community	Purchased groundwater
11	Valley View Country School	Twin Falls	295	Non-transient non-community	Groundwater
12	Castleford City of	Twin Falls	275	Community	Groundwater
13	Hollister City of	Twin Falls	220	Community	Groundwater
14	Kanaka Rapids Ranch Water System Inc.	Twin Falls	220	Community	Groundwater
15	Shoshone Falls Park Twin Falls	Twin Falls	200	Transient non-community	Groundwater
16	Community Christian Church	Twin Falls	150	Transient non-community	Groundwater
17	Twin Falls Gun Club	Twin Falls	150	Transient non-community	Groundwater
18	Rock Ledge Estates	Twin Falls	150	Community	Groundwater
19	Meander Point Subd	Twin Falls	140	Community	Groundwater
20	Murtaugh City of	Twin Falls	130	Community	Groundwater
21	Dierkes	Twin Falls	100	Transient non-community	Groundwater
22	Thousand Springs Resort	Twin Falls	100	Transient non-community	Groundwater
23	Rock Creek General Store	Twin Falls	100	Transient non-community	Groundwater
24	Hilltop Adventist Church	Twin Falls	90	Transient non-community	Groundwater
25	Deep Creek Mennonite School	Twin Falls	75	Non-transient non-community	Groundwater
26	Curry Junction	Twin Falls	75	Transient non-community	Groundwater
27	S&S	Twin Falls	75	Transient non-community	Groundwater
28	Rogerson Water Dist	Twin Falls	75	Community	Groundwater
29	Legacy Fields	Twin Falls	51	Transient non-community	Groundwater
30	Centennial Waterfront Park	Twin Falls	50	Transient non-community	Groundwater
31	Murtaugh Lake Park	Twin Falls	50	Transient non-community	Groundwater
32	Rock Creek Park Twin Falls County	Twin Falls	50	Transient non-community	Groundwater
33	Oasis Stop N Go	Twin Falls	50	Transient non-community	Groundwater
34	Sportsmans River Resort	Twin Falls	50	Community	Groundwater
35	Clover Trinity Lutheran School	Twin Falls	50	Non-transient non-community	Groundwater
36	Balanced Rock Park	Twin Falls	50	Transient non-community	Groundwater
37	Usda Ars	Twin Falls	46	Non-transient non-community	Groundwater
38	Miracle Hot Springs	Twin Falls	35	Transient non-community	Groundwater
39	Kws Seeds LLC	Twin Falls	30	Non-transient non-community	Groundwater
40	Banburys Hot Springs	Twin Falls	25	Transient non-community	Groundwater
41	Calvary Chapel of Twin Falls	Twin Falls	25	Transient non-community	Groundwater
42	Idaho Heritage Museum	Twin Falls	25	Transient non-community	Groundwater
43	Pebble Ponds Golf Course	Twin Falls	25	Transient non-community	Groundwater
44	Camp Tawakani	Twin Falls	25	Transient non-community	Groundwater
45	Kum Ba Yah Church Camp	Twin Falls	25	Transient non-community	Groundwater
46	Blm Salmon Dam Recreation Site	Twin Falls	25	Transient non-community	Groundwater
47	Pleasant Valley Golf Course	Twin Falls	25	Transient non-community	Groundwater
48	Good 2 Go Star Stop	Twin Falls	25	Transient non-community	Groundwater
49	Magic Valley Speedway	Twin Falls	25	Transient non-community	Groundwater
50	Train Station Pizza	Twin Falls	25	Transient non-community	Groundwater