St. Croix County, Wisconsin — public water systems

164 active public water systems serve St. Croix County, reporting 57.5K people served.

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

Active systems

164

Population served

57.5K

Community systems

Groundwater share

100%

Water systems in St. Croix County

Active public water systems in St. Croix County, Wisconsin
#	Water system	County	Population served	Type	Source
1	Hudson Waterworks	St. Croix	18,558	Community	Groundwater
2	New Richmond Waterworks	St. Croix	10,824	Community	Groundwater
3	Baldwin Waterworks	St. Croix	4,440	Community	Groundwater
4	Somerset Waterworks	St. Croix	3,334	Community	Groundwater
5	Hammond Waterworks	St. Croix	1,884	Community	Groundwater
6	Roberts Waterworks	St. Croix	1,872	Community	Groundwater
7	Woodville Waterworks	St. Croix	1,386	Community	Groundwater
8	Glenwood City Waterworks	St. Croix	1,102	Community	Groundwater
9	Cedar Lake Speedway-East Well	St. Croix	919	Transient non-community	Groundwater
10	Cedar Lake Speedway-West Well	St. Croix	919	Transient non-community	Groundwater
11	Wi Dnr Willow River Cmpgd - 300	St. Croix	800	Transient non-community	Groundwater
12	Star Prairie Waterworks	St. Croix	553	Community	Groundwater
13	St Croix Natl Golf Course	St. Croix	520	Transient non-community	Groundwater
14	Ymca Camp St Croix - Dining Hall	St. Croix	400	Transient non-community	Groundwater
15	Wi Dnr Willow River Srvc Bldg	St. Croix	350	Transient non-community	Groundwater
16	Wi Dnr Willow River Pic	St. Croix	300	Transient non-community	Groundwater
17	Houlton Elementary School	St. Croix	250	Non-transient non-community	Groundwater
18	Nor Lake	St. Croix	250	Non-transient non-community	Groundwater
19	Eau Galle Recreation Area	St. Croix	250	Transient non-community	Groundwater
20	Rivers Edge Cmpgd	St. Croix	210	Transient non-community	Groundwater
21	Wall Street Village	St. Croix	191	Community	Groundwater
22	Houlton MHP LLC	St. Croix	170	Community	Groundwater
23	Wilson Waterworks	St. Croix	170	Community	Groundwater
24	St Croix Co Glen Hills Pk Cmpgd	St. Croix	150	Transient non-community	Groundwater
25	Peace Lutheran Church	St. Croix	150	Transient non-community	Groundwater
26	St Croix Co Glen Hills Pk Picnic Area	St. Croix	150	Transient non-community	Groundwater
27	St Croix Co Glen Hills Pk Group Area	St. Croix	150	Transient non-community	Groundwater
28	New Richmond Golf Club	St. Croix	150	Transient non-community	Groundwater
29	Country Cove Court LLC	St. Croix	150	Community	Groundwater
30	Kingdom Hall Jehovahs Witnesses	St. Croix	145	Transient non-community	Groundwater
31	Baldwin Christian School	St. Croix	137	Non-transient non-community	Groundwater
32	Trinity Family Center	St. Croix	136	Non-transient non-community	Groundwater
33	Hudson Town Hall	St. Croix	135	Transient non-community	Groundwater
34	Wi Dnr Willow River Grp Cmpgd	St. Croix	130	Transient non-community	Groundwater
35	Ymca Camp St Croix - Bath House	St. Croix	125	Transient non-community	Groundwater
36	Travel Centers of America	St. Croix	125	Non-transient non-community	Groundwater
37	Rivers Edge Restaurant	St. Croix	120	Transient non-community	Groundwater
38	Bethel Highlands Lutheran Church	St. Croix	120	Non-transient non-community	Groundwater
39	Abundant Life Church	St. Croix	110	Non-transient non-community	Groundwater
40	Andersen Scout Camp House	St. Croix	100	Transient non-community	Groundwater
41	Kilkarney Hills Golf Course	St. Croix	100	Transient non-community	Groundwater
42	Andersen Scout Camp Shelter 2	St. Croix	100	Transient non-community	Groundwater
43	Andersen Scout Camp Adirondack 123	St. Croix	100	Transient non-community	Groundwater
44	Badlands Recreation Inc.	St. Croix	100	Transient non-community	Groundwater
45	St Croix Co Glen Hills Park Playground	St. Croix	100	Transient non-community	Groundwater
46	St Johns Lutheran Church	St. Croix	100	Transient non-community	Groundwater
47	Circle K #474	St. Croix	100	Transient non-community	Groundwater
48	Immanuel Evangelical Lutheran Church	St. Croix	100	Transient non-community	Groundwater
49	Rooster'S Roadhouse	St. Croix	100	Transient non-community	Groundwater
50	Big Guys Bbq Roadhouse	St. Croix	100	Transient non-community	Groundwater