Winona County, Minnesota — public water systems
At a glance
77 active public water systems are filed under Winona County, Minnesota in EPA's SDWIS records, together reporting 51,279 people served. The largest is Winona, which reports serving 27,782 people. 12 are community water systems serving people where they live; the other 65 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
77
Population served
51.3K
Community systems
12
Groundwater share
100%
How does Winona County compare with other Minnesota counties?
Winona County has the 27th-most active public water systems among the 94 counties listed for active Minnesota systems in EPA records; among the 87 with 3 or more systems, the median has 49. Its systems report 51,279 people served in total, the 17th-largest county figure in the state and 1% of the statewide total. The average system here reports serving 666 people, about 19% below the Minnesota average of 820. 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 Winona County's drinking water come from?
By primary water source, Winona County's active systems draw on groundwater (77, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 98% and 1.5% across Minnesota. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Winona, draws primarily on groundwater.
What kinds of water systems operate in Winona County?
Winona County's active systems break down as 12 community systems (16%), 6 non-transient non-community systems (7.8%) and 59 transient non-community systems (77%). 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 (71%), local government (17%), state government (9.1%) and federal government (2.6%).
The 50 largest water systems in Winona County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Winona | Winona | 27,782 | Community | Groundwater |
| 2 | Goodview | Winona | 4,158 | Community | Groundwater |
| 3 | Saint Charles | Winona | 3,825 | Community | Groundwater |
| 4 | Kwik Trip No. 497 | Winona | 1,600 | Transient non-community | Groundwater |
| 5 | Lewiston | Winona | 1,512 | Community | Groundwater |
| 6 | Enterprise Rest Area Mndot | Winona | 1,220 | Transient non-community | Groundwater |
| 7 | Dresbach Information Center Mndot | Winona | 1,058 | Transient non-community | Groundwater |
| 8 | Stockton | Winona | 697 | Community | Groundwater |
| 9 | Rollingstone | Winona | 664 | Community | Groundwater |
| 10 | Whitewater State Park | Winona | 600 | Transient non-community | Groundwater |
| 11 | Whitewater Travel Plaza, Inc.. | Winona | 600 | Transient non-community | Groundwater |
| 12 | Lock and Dam No. 7 | Winona | 600 | Transient non-community | Groundwater |
| 13 | Witoka Tavern | Winona | 500 | Transient non-community | Groundwater |
| 14 | Altura | Winona | 493 | Community | Groundwater |
| 15 | Hidden Valley Mobile Home Park | Winona | 464 | Community | Groundwater |
| 16 | Grace Lutheran Church - Ridgeway | Winona | 400 | Transient non-community | Groundwater |
| 17 | St. John'S Lutheran Church and School | Winona | 360 | Non-transient non-community | Groundwater |
| 18 | St. John'S Lutheran Church | Winona | 300 | Transient non-community | Groundwater |
| 19 | Utica | Winona | 293 | Community | Groundwater |
| 20 | Grace Lutheran Church | Winona | 270 | Transient non-community | Groundwater |
| 21 | Trinity Evangelical Lutheran Church | Winona | 200 | Transient non-community | Groundwater |
| 22 | St. Luke'S Evangelical Lutheran Church | Winona | 200 | Transient non-community | Groundwater |
| 23 | Lazy D Campground | Winona | 150 | Transient non-community | Groundwater |
| 24 | Berea Moravian Church | Winona | 150 | Transient non-community | Groundwater |
| 25 | Lock and Dam No. 5, Corps of Engineers | Winona | 150 | Transient non-community | Groundwater |
| 26 | Cedar Valley Golf Course | Winona | 150 | Transient non-community | Groundwater |
| 27 | Elba | Winona | 146 | Community | Groundwater |
| 28 | Bass Camp Resort | Winona | 135 | Transient non-community | Groundwater |
| 29 | Immanuel Lutheran Church and School | Winona | 130 | Non-transient non-community | Groundwater |
| 30 | Prairie Island Campground | Winona | 120 | Transient non-community | Groundwater |
| 31 | St. Paul'S Catholic Church | Winona | 120 | Transient non-community | Groundwater |
| 32 | Technical Die-Casting, Inc.. | Winona | 120 | Non-transient non-community | Groundwater |
| 33 | Lewiston Church of the Brethren | Winona | 105 | Transient non-community | Groundwater |
| 34 | Buck'S Bar - Minneiska Meats | Winona | 100 | Transient non-community | Groundwater |
| 35 | Ridgeway Water Association | Winona | 100 | Transient non-community | Groundwater |
| 36 | First Evangelical Lutheran Church | Winona | 100 | Transient non-community | Groundwater |
| 37 | Green Terrace Mobile Estates | Winona | 86 | Community | Groundwater |
| 38 | Ridgeway Community School | Winona | 85 | Non-transient non-community | Groundwater |
| 39 | Camp Everyday | Winona | 80 | Transient non-community | Groundwater |
| 40 | Twin Bluffs Bar | Winona | 75 | Transient non-community | Groundwater |
| 41 | Riverside United Methodist Church | Winona | 70 | Transient non-community | Groundwater |
| 42 | Consolidated Energy Company | Winona | 60 | Transient non-community | Groundwater |
| 43 | Bethany Water Company | Winona | 60 | Community | Groundwater |
| 44 | Z&A Country Market | Winona | 59 | Transient non-community | Groundwater |
| 45 | Black Horse Bar & Grill | Winona | 50 | Transient non-community | Groundwater |
| 46 | Forest River Campground and Marina | Winona | 50 | Transient non-community | Groundwater |
| 47 | Chs, St. Charles | Winona | 50 | Transient non-community | Groundwater |
| 48 | Pete'S Inn | Winona | 50 | Transient non-community | Groundwater |
| 49 | Eagle View Bar & Grill | Winona | 50 | Transient non-community | Groundwater |
| 50 | Whitewater Valley Campground | Winona | 45 | Transient non-community | Groundwater |
All other water systems in Winona County (27)
The remaining active systems filed under Winona County, largest first, with the population each reports serving.
- Bill Grant Community Center45
- Cedar Valley Lutheran Church40
- Camp Wenonah40
- Crystal Springs Hatchery40
- Lost Arrow Campground40
- Jim'S Truck and Trailer40
- Trails End Bar & Grill40
- Minnesota City Boat Club39
- Mosher Veterans Home34
- Daley Farm of Lewiston LLC34
- Heart & Soil Ridge30
- Minnesota Equestrian Center30
- Express-A-Button30
- B&B'S Fremont Store30
- Truck Station-Dresbach Mndot25
- Jll Pumphouse25
- Whitewater Wildlife Management Area25
- Southwind Apple Orchard25
- Wilson Fire Department25
- Farmer'S Community Park25
- Winona Sportsmen'S Club25
- Trout Valley Trail25
- Aefintyr25
- Whitewater Wines25
- Tower View Campground LLC25
- Midwest Machinery Co. - St. Charles25
- Pickwick Volunteer Fire Department25
Winona County water systems: frequently asked questions
How many public water systems are in Winona County, Minnesota?
EPA's SDWIS records file 77 active public water systems under Winona County, Minnesota: 12 community systems (16%), 6 non-transient non-community systems (7.8%) and 59 transient non-community systems (77%).
Who supplies drinking water in Winona County, MN?
The largest community water systems filed under Winona County are Winona (27,782 people served), Goodview (4,158 people served) and Saint Charles (3,825 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 Winona County's drinking water come from groundwater or surface water?
Of the 77 active public water systems in Winona County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Winona, uses groundwater.
Where can I find a water quality report for Winona 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. 12 community systems are filed under Winona 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 Winona 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 Minnesota water systems
- All Minnesota public water systems· 6,465 active
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- Goodhue County· 90 systems
- Olmsted County· 81 systems
- Sherburne County· 78 systems
- Carlton County· 75 systems
- Kandiyohi County· 73 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 Winona County, Minnesota”, https://aquacensus.com/water-systems/minnesota/winona (data as of October 1, 2026).