Pierce County, Wisconsin — public water systems
At a glance
95 active public water systems are filed under Pierce County, Wisconsin in EPA's SDWIS records, together reporting 32,378 people served. The largest is River Falls Waterworks, which reports serving 16,000 people. 11 are community water systems serving people where they live; the other 84 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
95
Population served
32.4K
Community systems
11
Groundwater share
100%
How does Pierce County compare with other Wisconsin counties?
Pierce County has the 48th-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 32,378 people served in total, the 34th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 341 people, about 27% 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 Pierce County's drinking water come from?
By primary water source, Pierce County's active systems draw on groundwater (95, 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, River Falls Waterworks, draws primarily on groundwater.
What kinds of water systems operate in Pierce County?
Pierce County's active systems break down as 11 community systems (12%), 10 non-transient non-community systems (11%) and 74 transient non-community systems (78%). 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 (87%), local government (11%) and state government (2.1%).
The 50 largest water systems in Pierce County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | River Falls Waterworks | Pierce | 16,000 | Community | Groundwater |
| 2 | Prescott Waterworks | Pierce | 4,258 | Community | Groundwater |
| 3 | Ellsworth Waterworks | Pierce | 3,304 | Community | Groundwater |
| 4 | Spring Valley Waterworks | Pierce | 1,409 | Community | Groundwater |
| 5 | Elmwood Waterworks | Pierce | 798 | Community | Groundwater |
| 6 | Belle Ame Vineyard | Pierce | 500 | Transient non-community | Groundwater |
| 7 | Bay City Waterworks | Pierce | 499 | Community | Groundwater |
| 8 | Ave Maria Academy | Pierce | 226 | Non-transient non-community | Groundwater |
| 9 | Meyer Utility Structures LLC | Pierce | 225 | Non-transient non-community | Groundwater |
| 10 | Plum Petroleum LLC | Pierce | 202 | Transient non-community | Groundwater |
| 11 | Captain Jacks Saloon | Pierce | 200 | Transient non-community | Groundwater |
| 12 | Plum City Perk | Pierce | 200 | Transient non-community | Groundwater |
| 13 | Exile Bar | Pierce | 200 | Transient non-community | Groundwater |
| 14 | St Croix Improvements | Pierce | 175 | Community | Groundwater |
| 15 | Plum City High School | Pierce | 160 | Non-transient non-community | Groundwater |
| 16 | Ellsworth Coop Creamery | Pierce | 150 | Non-transient non-community | Groundwater |
| 17 | Hager Heights Drive in | Pierce | 150 | Transient non-community | Groundwater |
| 18 | Our Saviors Lutheran Church | Pierce | 140 | Transient non-community | Groundwater |
| 19 | C3 Church | Pierce | 127 | Transient non-community | Groundwater |
| 20 | Plum City Elementary School | Pierce | 125 | Non-transient non-community | Groundwater |
| 21 | Plum City Care Center Nursing Home | Pierce | 120 | Community | Groundwater |
| 22 | Last Resort Campground | Pierce | 120 | Transient non-community | Groundwater |
| 23 | Maiden Rock Water Utility | Pierce | 118 | Community | Groundwater |
| 24 | Freedom Island Cmpgd | Pierce | 110 | Transient non-community | Groundwater |
| 25 | Clifton Highlands Golf | Pierce | 100 | Transient non-community | Groundwater |
| 26 | Freedom Island Cmpgd - North | Pierce | 100 | Transient non-community | Groundwater |
| 27 | Forestville Winery and Event Center | Pierce | 100 | Transient non-community | Groundwater |
| 28 | Nugget Lake County Park - Cmpgd | Pierce | 100 | Transient non-community | Groundwater |
| 29 | Nugget Lake County Park - Picnic Area | Pierce | 100 | Transient non-community | Groundwater |
| 30 | St Pauls United Ch of Christ | Pierce | 100 | Transient non-community | Groundwater |
| 31 | Netties Volta | Pierce | 90 | Transient non-community | Groundwater |
| 32 | Vino in the Valley | Pierce | 75 | Transient non-community | Groundwater |
| 33 | Heartland Montessori School | Pierce | 64 | Non-transient non-community | Groundwater |
| 34 | Honey Hole Tavern the | Pierce | 60 | Transient non-community | Groundwater |
| 35 | Svea Lutheran Church | Pierce | 60 | Transient non-community | Groundwater |
| 36 | Harbor Bar | Pierce | 60 | Transient non-community | Groundwater |
| 37 | 29 Express | Pierce | 60 | Transient non-community | Groundwater |
| 38 | Nestle Purina Pet Care Co | Pierce | 55 | Non-transient non-community | Groundwater |
| 39 | Valley Bar & Grill, the | Pierce | 50 | Transient non-community | Groundwater |
| 40 | Clifton Hollow Golf Course | Pierce | 50 | Transient non-community | Groundwater |
| 41 | Spring Valley Golf Course | Pierce | 50 | Transient non-community | Groundwater |
| 42 | Shady Grove | Pierce | 50 | Transient non-community | Groundwater |
| 43 | Ridgetop | Pierce | 50 | Transient non-community | Groundwater |
| 44 | Rush River Lutheran Church | Pierce | 50 | Transient non-community | Groundwater |
| 45 | Gas Lite | Pierce | 50 | Transient non-community | Groundwater |
| 46 | Country Manor Apts | Pierce | 50 | Community | Groundwater |
| 47 | Plummer Concrete & Associates Inc. | Pierce | 45 | Non-transient non-community | Groundwater |
| 48 | Wieser Concrete Products Inc. | Pierce | 45 | Non-transient non-community | Groundwater |
| 49 | Pierce-Pepin Cooperative Services | Pierce | 40 | Non-transient non-community | Groundwater |
| 50 | Kingdom Hall Jehovah Wt Ch | Pierce | 40 | Transient non-community | Groundwater |
All other water systems in Pierce County (45)
The remaining active systems filed under Pierce County, largest first, with the population each reports serving.
- Dollar General #2307032
- Prairie View Senior Living31
- David Motel30
- Bluffs Hager City30
- Eidsvold Lutheran Church30
- 715 Steer and Beer30
- Tabor Lutheran Church30
- Dollar General #2156827
- Everts Resort Bait Shop26
- St Marys Catholic Church26
- Everts Resort - Resort Well26
- Lost Creek Ranch25
- Unitarian Universalist Society25
- Mr Sippis25
- Evangelical Free Church25
- Immanuel Lutheran Church25
- Haglunds Corner Bar25
- Nauti Hawg Bar & Grill the25
- Ellsworth Country Club25
- Langers Bar25
- Big Dog Daddys Roadhouse25
- Bible Center Church25
- Rock Elm United Methodist Church25
- St Johns United Church of Christ25
- Sixty Three Express Hager City LLC25
- Kennys Lawton Bar & Grill25
- Sugars25
- Young Acres LLC25
- Vieths Bar25
- Woodshed Pizza25
- Plum City School - Concession Stand25
- Trenton Island Yacht Club25
- Waverlys Full Throttle Saloon25
- Gilman Lutheran Church25
- American Legion Park - Park Rd25
- Elmwood Rod & Gun Club25
- Ellsworth Rod & Gun Club25
- Wi Dnr Kinnickinnic Pk St Croix Picnic25
- El Paso Bar25
- Wi Dnr Kinnickinnic Pk Office25
- Ono United Methodist Church25
- Clydes Corner25
- Bethel Covenant Church25
- Crystal Cave25
- Mollys on Main25
Pierce County water systems: frequently asked questions
How many public water systems are in Pierce County, Wisconsin?
EPA's SDWIS records file 95 active public water systems under Pierce County, Wisconsin: 11 community systems (12%), 10 non-transient non-community systems (11%) and 74 transient non-community systems (78%).
Who supplies drinking water in Pierce County, WI?
The largest community water systems filed under Pierce County are River Falls Waterworks (16,000 people served), Prescott Waterworks (4,258 people served) and Ellsworth Waterworks (3,304 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 Pierce County's drinking water come from groundwater or surface water?
Of the 95 active public water systems in Pierce County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, River Falls Waterworks, uses groundwater.
Where can I find a water quality report for Pierce 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. 11 community systems are filed under Pierce 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 Pierce 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
- Outagamie County· 107 systems
- Jackson County· 106 systems
- Monroe County· 102 systems
- Lincoln County· 97 systems
- Clark County· 94 systems
- Grant County· 90 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 Pierce County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/pierce (data as of October 1, 2026).