Sacramento County, California — public water systems

166 active public water systems serve Sacramento County, reporting 1.7M people served.

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

Active systems

166

Population served

1.7M

Community systems

Groundwater share

86.1%

Water systems in Sacramento County

Active public water systems in Sacramento County, California
#	Water system	County	Population served	Type	Source
1	City of Sacramento Main	Sacramento	527,979	Community	Surface water
2	Sacramento Suburban Water District	Sacramento	194,444	Community	Purchased surface water
3	Scwa - Laguna/Vineyard	Sacramento	184,896	Community	Surface water
4	Folsom, City of - Main	Sacramento	80,969	Community	Surface water
5	Citrus Heights Water District	Sacramento	67,818	Community	Purchased surface water
6	Cal Am - Suburban Rosemont	Sacramento	54,793	Community	Purchased surface water
7	Cal Am - Parkway	Sacramento	50,573	Community	Purchased surface water
8	Cal Am - Lincoln Oaks	Sacramento	48,094	Community	Purchased surface water
9	Golden State Water Co. - Cordova	Sacramento	47,161	Community	Surface water
10	Elk Grove Water District	Sacramento	43,813	Community	Purchased surface water
11	Sacramento International Airport [Sws]	Sacramento	41,717	Non-transient non-community	Purchased surface water
12	Carmichael Water District	Sacramento	41,193	Community	Groundwater under influence of surface water
13	Fair Oaks Water District	Sacramento	36,226	Community	Purchased surface water
14	Cal Am - Antelope	Sacramento	35,534	Community	Purchased surface water
15	Scwa Mather-Sunrise	Sacramento	30,825	Community	Purchased surface water
16	San Juan Water District	Sacramento	29,598	Community	Surface water
17	Galt, City of	Sacramento	26,536	Community	Groundwater
18	Orange Vale Water Company	Sacramento	16,861	Community	Purchased surface water
19	Cal Am - Fruitridge Vista	Sacramento	15,652	Community	Purchased surface water
20	Rio Linda/Elverta Community Water Dist	Sacramento	15,460	Community	Groundwater
21	Scwa - Arden Park Vista	Sacramento	10,101	Community	Groundwater
22	California State Fair	Sacramento	9,280	Community	Groundwater
23	Florin County Water District	Sacramento	7,831	Community	Groundwater
24	Folsom State Prison	Sacramento	7,502	Community	Surface water
25	Rancho Murieta Community Servi	Sacramento	5,728	Community	Surface water
26	Golden State Water Co - Arden Water Serv	Sacramento	5,658	Community	Groundwater
27	Sswd - Del Paso Manor Service Area	Sacramento	4,854	Community	Groundwater
28	Cal Am - Arden	Sacramento	4,191	Community	Purchased surface water
29	Folsom, City of - Ashland	Sacramento	3,317	Community	Purchased surface water
30	Gibson Ranch County Park	Sacramento	3,300	Transient non-community	Groundwater
31	Northgate 880 [Sws]	Sacramento	2,926	Non-transient non-community	Groundwater
32	Rio Cosumnes Correctional Center [Sws]	Sacramento	2,800	Community	Groundwater
33	Metro Air Park Water System	Sacramento	2,500	Non-transient non-community	Purchased surface water
34	American River College	Sacramento	2,000	Non-transient non-community	Groundwater
35	Slavic Missionary Church Inc.	Sacramento	1,800	Transient non-community	Groundwater
36	Branch Center [Sws]	Sacramento	1,700	Non-transient non-community	Groundwater
37	Cal Am - Isleton	Sacramento	1,693	Community	Groundwater
38	Brannan Island State Rec. Area	Sacramento	1,622	Transient non-community	Groundwater
39	Elkhorn I-5 Rest Area	Sacramento	1,000	Transient non-community	Groundwater
40	Richard A. Mcgee Training Center	Sacramento	975	Non-transient non-community	Groundwater
41	Church of Jesus Christ of Lds (Sws)	Sacramento	800	Transient non-community	Groundwater
42	Mc Clellan MHP	Sacramento	700	Community	Groundwater
43	Cal Am - Walnut Grove	Sacramento	667	Community	Groundwater
44	Tokay Park Water Co	Sacramento	653	Community	Groundwater
45	Franklin Elementary School	Sacramento	650	Non-transient non-community	Groundwater
46	Grand Island Mansion	Sacramento	600	Transient non-community	Groundwater
47	St Maria Goretti Parish (Sws)	Sacramento	600	Transient non-community	Groundwater
48	Cosumnes River Elementary School	Sacramento	560	Non-transient non-community	Groundwater
49	Rancho Seco Park	Sacramento	558	Transient non-community	Groundwater
50	Arcohe Elem School - Main Campus	Sacramento	465	Non-transient non-community	Groundwater