Juneau County, Wisconsin — public water systems
At a glance
146 active public water systems are filed under Juneau County, Wisconsin in EPA's SDWIS records, together reporting 26,525 people served. The largest is Mauston Waterworks, which reports serving 4,456 people. 15 are community water systems serving people where they live; the other 131 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
146
Population served
26.5K
Community systems
15
Groundwater share
100%
How does Juneau County compare with other Wisconsin counties?
Juneau County has the 35th-most active public water systems among the 90 counties listed for active Wisconsin systems in EPA records; among the 74 with 3 or more systems, the median has 140. Its systems report 26,525 people served in total, the 38th-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 182 people, about 61% below the Wisconsin average of 469. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Juneau County's drinking water come from?
By primary water source, Juneau County's active systems draw on groundwater (146, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 99% and 0.6% across Wisconsin. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Mauston Waterworks, draws primarily on groundwater.
What kinds of water systems operate in Juneau County?
Juneau County's active systems break down as 15 community systems (10%), 3 non-transient non-community systems (2.1%) and 128 transient non-community systems (88%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (73%), local government (16%), state government (8.9%) and federal government (1.4%).
The 50 largest water systems in Juneau County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Mauston Waterworks | Juneau | 4,456 | Community | Groundwater |
| 2 | Woodside Sports Complex | Juneau | 3,008 | Transient non-community | Groundwater |
| 3 | New Lisbon Waterworks | Juneau | 2,526 | Community | Groundwater |
| 4 | Wi Dot Rest Area 10 Kildare | Juneau | 2,000 | Transient non-community | Groundwater |
| 5 | Wi Dot Rest Area 9 Lemonweir | Juneau | 2,000 | Transient non-community | Groundwater |
| 6 | Elroy Waterworks | Juneau | 1,333 | Community | Groundwater |
| 7 | Necedah Waterworks | Juneau | 844 | Community | Groundwater |
| 8 | Wonewoc Waterworks | Juneau | 758 | Community | Groundwater |
| 9 | Camp Douglas Waterworks | Juneau | 640 | Community | Groundwater |
| 10 | Wi Dot Wayside 2 Orange Camp Douglas | Juneau | 500 | Transient non-community | Groundwater |
| 11 | Lyndon Station Waterworks | Juneau | 474 | Community | Groundwater |
| 12 | Wi Air National Guard Volk Field | Juneau | 400 | Community | Groundwater |
| 13 | Shipwreck Bay Bar and Resort | Juneau | 300 | Transient non-community | Groundwater |
| 14 | Union Center Waterworks | Juneau | 225 | Community | Groundwater |
| 15 | Kountry Aire Est MHP Iii | Juneau | 210 | Community | Groundwater |
| 16 | Shangri-La Campground 1 | Juneau | 200 | Transient non-community | Groundwater |
| 17 | Shangri-La Campground 2 | Juneau | 200 | Transient non-community | Groundwater |
| 18 | Hustler Waterworks | Juneau | 170 | Community | Groundwater |
| 19 | Woodside Ranch LLC - West | Juneau | 150 | Transient non-community | Groundwater |
| 20 | Woodside Ranch LLC - East | Juneau | 150 | Transient non-community | Groundwater |
| 21 | Howling Hills Cmpgd | Juneau | 103 | Transient non-community | Groundwater |
| 22 | Holy Cow Bar & Grill | Juneau | 103 | Transient non-community | Groundwater |
| 23 | Arrowhead Campground | Juneau | 100 | Transient non-community | Groundwater |
| 24 | Wells Lakeside Cottages South End | Juneau | 100 | Transient non-community | Groundwater |
| 25 | Wells Lakeside Cottages North End | Juneau | 100 | Transient non-community | Groundwater |
| 26 | Castle Rock Lake Cmpgrd | Juneau | 100 | Transient non-community | Groundwater |
| 27 | In the Pines Cmpgd Well 3 | Juneau | 100 | Transient non-community | Groundwater |
| 28 | Shangri-La Cmpgd | Juneau | 100 | Transient non-community | Groundwater |
| 29 | Stand Rock Consessions Boat Tours | Juneau | 100 | Transient non-community | Groundwater |
| 30 | Wi Dnr Buckhorn Group Camp | Juneau | 100 | Transient non-community | Groundwater |
| 31 | Woodbine Inn | Juneau | 100 | Transient non-community | Groundwater |
| 32 | Winding River Cmpgd | Juneau | 100 | Transient non-community | Groundwater |
| 33 | Camp Upham Campground | Juneau | 100 | Transient non-community | Groundwater |
| 34 | Edge O Dells Resort - Campground | Juneau | 100 | Transient non-community | Groundwater |
| 35 | Edge O Dells Resort - Cmpgd Expansion & Pool | Juneau | 100 | Transient non-community | Groundwater |
| 36 | Wi Dnr Buckhorn Showers | Juneau | 100 | Transient non-community | Groundwater |
| 37 | Wi Dnr Buckhorn Beach | Juneau | 100 | Transient non-community | Groundwater |
| 38 | Castle Rock Park 8 High Cap | Juneau | 100 | Transient non-community | Groundwater |
| 39 | Castle Rock Park Bathhouse | Juneau | 100 | Transient non-community | Groundwater |
| 40 | Wi Dnr Buckhorn S Pic | Juneau | 100 | Transient non-community | Groundwater |
| 41 | Castle Rock Park 5 | Juneau | 100 | Transient non-community | Groundwater |
| 42 | Castle Rock Park 6 | Juneau | 100 | Transient non-community | Groundwater |
| 43 | Kountry Aire Est MHP I | Juneau | 90 | Community | Groundwater |
| 44 | Yukon Trails Cmpgd-West Side Well | Juneau | 85 | Transient non-community | Groundwater |
| 45 | River Bay Marina 2 Pool Area | Juneau | 75 | Transient non-community | Groundwater |
| 46 | Wi Dnr Dells of the Wi River - Overlook | Juneau | 75 | Transient non-community | Groundwater |
| 47 | River Bay Marina 1 | Juneau | 75 | Transient non-community | Groundwater |
| 48 | Wilderness Inn | Juneau | 75 | Transient non-community | Groundwater |
| 49 | In the Pines Low Cap Well | Juneau | 70 | Transient non-community | Groundwater |
| 50 | In the Pines High Cap Well | Juneau | 64 | Transient non-community | Groundwater |
All other water systems in Juneau County (96)
The remaining active systems filed under Juneau County, largest first, with the population each reports serving.
- Yukon Trails Cmpgd-Office60
- Edge O Dells Resort - Bar60
- Days End Motel54
- Wilderness Co Park-Site 1750
- Phoenix Necedah Industrial Investors LLC50
- Way Station Bar50
- Boondocks50
- Germantown Cmpgd & Store50
- Cruisin Chubbys50
- Rock Camping Resort - Bar & Shower Bldg, the50
- Wilderness Co Park-Office50
- Eagles Nest Resort 150
- Buckhorn Store-Kwik Mart50
- Wilderness Co Park-Shower Bldg50
- Bethel Baptist Church50
- Castle Rock Golf Course & Club50
- Lgc Stnd Rock Rv West Well50
- Lgc Stand Rock Rv East Well50
- Buckhorn Resort 5 W Bath50
- Buckhorn Resort Bathroom Laundry Gameroom50
- Buckhorn Resort East Bathhouse50
- Castle Rock Hideaway Bait Shop50
- Big Os Bar and Grill50
- Wabash National Trailer Centers Inc.48
- Necedah National Wildlife Refuge Visitor Center47
- 3bs Little Summit45
- Mauston Green Acres40
- Reel Inn40
- St Joseph Motel & Resort40
- Western Woods Cmpgd40
- Pearces Mobile Home Estates37
- Land O Lakes- Animal Milk Solutions36
- Summit Ridge Ii LLC31
- Buckhorn Bar & Grill30
- Rock Camping Resort - Campground, the30
- Yukon Trails Cmpgd-Bathhouse26
- Pine Cove Resort - Campground26
- St Joseph Campground26
- Frankos Boners Again25
- Wi Dnr Buckhorn Office25
- Wi Dnr Buckhorn N Shltr25
- Sandy Shores Resort25
- Big Franks25
- Refuel Pantry - Dells25
- Ho-Chunk Rv Resort & Cmpgd Pool Area25
- Ho-Chunk Rv Resort & Cmpgd Trading Post Area25
- Dollar General #2397025
- Bavarian Cmpgd 425
- Sandstone Park 2 Clubhouse25
- Castle Rock Hideaway Shower Bldg25
- Castle Rock Hideaway Cabins25
- Roadhouse Pub & Grill25
- Country Pines25
- Reel Inn Cmpgd25
- Bass Lake Campground 1-North25
- Bass Lake Campground 225
- Burr Oak Winery25
- Kountry Aire Est MHP Ii25
- Scouting America Bryant Scout Reservation - Fellowship Hall25
- Scouting America Bryant Scout Reservation - Ybr25
- Angels Hideaway25
- Jackson Clinic25
- Pine Cove Restaurant Tavern25
- Edge O Dells Resort - Office25
- Edge O Dells Resort - West Cmpgd25
- River Bay Marina 3 Hi Cap25
- Moonlite Trails Cmpgd25
- Wi Dnr Buckhorn Rv Dump25
- Wi Dnr Buckhorn Cmpgd25
- Our Lady of the Lake Cath Ch25
- Cedar Creek Rustic Village25
- Kennedy County Park 1-Gate25
- Wilderness Co Park Site 8025
- Castle Rock Co Park 1025
- Castle Rock Co Park 1125
- Wilderness Co Park-South Well25
- Bass Hollow Rec Area25
- Riverview Trails Rec Area25
- Omaha Trail Wayside25
- Kozy Pizza25
- Wonderlys Bar25
- Landing, the25
- Collin'S Coffee25
- Babes Country Club25
- Cedar Springs Campground-Shower House25
- Cedar Springs Bp25
- Mickis Body Shop Bar & Grill25
- Dirty Turtle the25
- Summer Hideaway 125
- Summer Hideaway Rv Arcade25
- Summer Hideaway Rv Cmpgd25
- Summer Hideaway 225
- Riverside Great Northern Rail25
- Old Finley Tavern25
- Edge O Dells Resort Lodge25
- Sandstone Recr Park 1 Racoon Loop25
Juneau County water systems: frequently asked questions
How many public water systems are in Juneau County, Wisconsin?
EPA's SDWIS records file 146 active public water systems under Juneau County, Wisconsin: 15 community systems (10%), 3 non-transient non-community systems (2.1%) and 128 transient non-community systems (88%).
Who supplies drinking water in Juneau County, WI?
The largest community water systems filed under Juneau County are Mauston Waterworks (4,456 people served), New Lisbon Waterworks (2,526 people served) and Elroy Waterworks (1,333 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Juneau County's drinking water come from groundwater or surface water?
Of the 146 active public water systems in Juneau County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Mauston Waterworks, uses groundwater.
Where can I find a water quality report for Juneau County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 15 community systems are filed under Juneau County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Juneau County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Wisconsin water systems
- All Wisconsin public water systems· 11,056 active
- Rock County· 156 systems
- Brown County· 148 systems
- Portage County· 148 systems
- Wood County· 148 systems
- Winnebago County· 145 systems
- Columbia County· 140 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Juneau County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/juneau (data as of October 1, 2026).