Madison County, Illinois — public water systems

54 active public water systems serve Madison County, reporting 268.5K people served.

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

Active systems

Population served

268.5K

Community systems

Groundwater share

42.6%

Water systems in Madison County

Active public water systems in Madison County, Illinois
#	Water system	County	Population served	Type	Source
1	Il American-Alton	Madison	46,127	Community	Surface water
2	Collinsville	Madison	29,500	Community	Groundwater
3	Il American-Granite City	Madison	27,549	Community	Surface water
4	Edwardsville	Madison	26,808	Community	Groundwater
5	Troy	Madison	16,962	Community	Groundwater
6	Bethalto	Madison	15,210	Community	Groundwater
7	Glen Carbon	Madison	12,618	Community	Purchased surface water
8	Highland	Madison	10,674	Community	Surface water
9	Wood River	Madison	10,464	Community	Groundwater
10	Maryville	Madison	10,150	Community	Groundwater
11	Fosterburg PWD	Madison	7,940	Community	Purchased surface water
12	East Alton	Madison	5,786	Community	Groundwater
13	Mitchell PWD	Madison	5,253	Community	Purchased surface water
14	North East Central PWD	Madison	3,975	Community	Purchased groundwater
15	Three County PWD	Madison	3,575	Community	Purchased surface water
16	Tritownship Water District	Madison	3,470	Community	Purchased surface water
17	Pontoon Beach PWD	Madison	3,325	Community	Purchased surface water
18	Olin Winchester LLC	Madison	3,250	Non-transient non-community	Purchased surface water
19	Holiday Shores Sd	Madison	2,840	Community	Surface water
20	Southern Il University-Edwardsville	Madison	2,817	Community	Purchased groundwater
21	South Roxana	Madison	1,891	Community	Purchased groundwater
22	St Jacob	Madison	1,835	Community	Purchased surface water
23	Meadowbrook PWD	Madison	1,778	Community	Purchased groundwater
24	Grantfork	Madison	1,766	Community	Purchased surface water
25	Pierron	Madison	1,709	Community	Purchased surface water
26	Roxana	Madison	1,509	Community	Groundwater
27	Hartford	Madison	1,260	Community	Groundwater
28	Worden	Madison	1,096	Community	Purchased surface water
29	Hamel	Madison	1,087	Community	Purchased surface water
30	Marine	Madison	1,037	Community	Purchased surface water
31	Il American-Livingston	Madison	825	Community	Purchased surface water
32	Alhambra	Madison	755	Community	Purchased surface water
33	Moro PWD	Madison	723	Community	Purchased groundwater
34	Enchanted Village	Madison	720	Community	Purchased surface water
35	Forge at the Lake	Madison	387	Community	Purchased surface water
36	Meridian Village	Madison	339	Community	Purchased surface water
37	Village Green Mobile Home Park	Madison	220	Community	Purchased surface water
38	East 30 MHP	Madison	218	Community	Purchased surface water
39	University Flats MHP	Madison	203	Community	Purchased groundwater
40	Quail Run Mobile Home Park	Madison	168	Community	Purchased groundwater
41	Country Hills Wtr, Inc..	Madison	166	Community	Purchased surface water
42	Oak Grove MHP - Madison County	Madison	138	Community	Purchased surface water
43	Twice the Ice Hamel	Madison	50	Transient non-community	Purchased surface water
44	I-55 Rv Park	Madison	30	Transient non-community	Groundwater
45	Bk Ice Wood River	Madison	25	Transient non-community	Purchased groundwater
46	Twice the Ice Collinsville	Madison	25	Transient non-community	Purchased groundwater
47	Twice the Ice Madison	Madison	25	Transient non-community	Purchased surface water
48	Troy'S Finest Car Wash Water and Ice Ven	Madison	25	Transient non-community	Purchased groundwater
49	Twice the Ice Vandalia Collinsville	Madison	25	Transient non-community	Purchased groundwater
50	Weiss Ice LLC	Madison	25	Transient non-community	Purchased surface water