Will County, Illinois — public water systems

236 active public water systems serve Will County, reporting 615.2K people served.

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

Active systems

236

Population served

615.2K

Community systems

Groundwater share

96.2%

Water systems in Will County

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Active public water systems in Will County, Illinois
#	Water system	County	Population served	Type	Source
1	Joliet	Will	160,000	Community	Groundwater
2	Il American-West Suburban	Will	73,978	Community	Purchased surface water
3	Romeoville	Will	50,458	Community	Groundwater
4	Plainfield	Will	50,000	Community	Purchased surface water
5	New Lenox	Will	27,690	Community	Purchased surface water
6	Il American-Homer Township	Will	24,543	Community	Purchased surface water
7	Frankfort	Will	24,000	Community	Groundwater
8	Lockport	Will	23,100	Community	Groundwater
9	Crest Hill	Will	21,169	Community	Groundwater
10	Mokena	Will	19,887	Community	Purchased surface water
11	Shorewood	Will	18,645	Community	Groundwater
12	Channahon	Will	13,380	Community	Groundwater
13	Manhattan	Will	10,340	Community	Groundwater
14	Crete	Will	8,275	Community	Groundwater
15	Aqua Illinois-University Park	Will	7,002	Community	Purchased surface water
16	Braidwood	Will	6,194	Community	Groundwater
17	Wilmington	Will	5,700	Community	Surface water
18	Monee	Will	5,148	Community	Groundwater
19	Aqua Illinois-Willowbrook	Will	5,100	Community	Groundwater
20	Beecher	Will	4,713	Community	Groundwater
21	Aqua Illinois-Peotone	Will	4,182	Community	Purchased surface water
22	Elwood	Will	2,229	Community	Groundwater
23	Rockdale	Will	2,012	Community	Groundwater
24	Southeast Joliet Sd	Will	2,000	Community	Groundwater
25	Pheasant Lake Estates MHP	Will	1,528	Community	Groundwater
26	Exxon Mobil Oil Refinery	Will	1,450	Non-transient non-community	Groundwater
27	Crystal Lawns Addition Improvement Assoc	Will	1,435	Community	Groundwater
28	Bonnie Brae Forest Manor Sndst	Will	1,338	Community	Purchased groundwater
29	East Moreland Wtr Service Assn	Will	1,320	Community	Groundwater
30	Il American-Arbury	Will	1,225	Community	Groundwater
31	Stateville Correctional Center	Will	992	Community	Purchased groundwater
32	Lockport Heights Sd	Will	984	Community	Purchased groundwater
33	Gateway MHP	Will	884	Community	Groundwater
34	Lakewood Shores Improvement Association	Will	868	Community	Purchased surface water
35	Prairie Path Water Company-Cherry Hill	Will	833	Community	Groundwater
36	Braidwood Generating Station	Will	800	Non-transient non-community	Groundwater
37	Aqua Illinois-Village Woods	Will	800	Community	Groundwater
38	Prairie Path Water Company-Camelot	Will	777	Community	Groundwater
39	Ingalls Park Subdivision	Will	744	Community	Groundwater
40	Christian Life Church	Will	730	Transient non-community	Groundwater
41	Lmd Liquors LLC Dba Highland Liquors	Will	725	Transient non-community	Groundwater
42	Merichkas	Will	700	Non-transient non-community	Groundwater
43	Gas City 143rd Street	Will	700	Transient non-community	Groundwater
44	Lakepoint Club C/O George Kappos	Will	650	Transient non-community	Groundwater
45	Balmoral Elem	Will	645	Non-transient non-community	Groundwater
46	Channahon East	Will	630	Community	Purchased groundwater
47	Baker Koren Round Barn	Will	600	Transient non-community	Groundwater
48	Three Rivers Church	Will	600	Transient non-community	Groundwater
49	Isle A La Cache Museum	Will	600	Transient non-community	Groundwater
50	College View Subdivision	Will	570	Community	Groundwater