Carlton County, Minnesota — public water systems
At a glance
75 active public water systems are filed under Carlton County, Minnesota in EPA's SDWIS records, together reporting 23,773 people served. The largest is Cloquet, which reports serving 12,864 people. 10 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
75
Population served
23.8K
Community systems
10
Groundwater share
100%
How does Carlton County compare with other Minnesota counties?
Carlton County has the 28th-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 23,773 people served in total, the 37th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 317 people, about 61% 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 Carlton County's drinking water come from?
By primary water source, Carlton County's active systems draw on groundwater (72, 96%), groundwater under influence of surface water (2, 2.7%) and purchased groundwater (1, 1.3%). 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, Cloquet, draws primarily on groundwater.
What kinds of water systems operate in Carlton County?
Carlton County's active systems break down as 10 community systems (13%), 10 non-transient non-community systems (13%) and 55 transient non-community systems (73%). 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 (83%), local government (15%) and state government (2.7%).
The 50 largest water systems in Carlton County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Cloquet | Carlton | 12,864 | Community | Groundwater |
| 2 | Moose Lake | Carlton | 1,782 | Community | Groundwater |
| 3 | Esko Public School, Isd #99 | Carlton | 1,200 | Non-transient non-community | Groundwater |
| 4 | Carlton | Carlton | 1,146 | Community | Groundwater |
| 5 | Scanlon | Carlton | 1,003 | Community | Purchased groundwater |
| 6 | Mn Correctional Facility - Moose Lake | Carlton | 975 | Community | Groundwater |
| 7 | Barnum | Carlton | 621 | Community | Groundwater |
| 8 | Wrenshall | Carlton | 399 | Community | Groundwater |
| 9 | Cromwell | Carlton | 250 | Community | Groundwater |
| 10 | Kettle River | Carlton | 168 | Community | Groundwater |
| 11 | Apostolic Lutheran Church | Carlton | 150 | Transient non-community | Groundwater |
| 12 | The Lounge on Big Lake | Carlton | 150 | Transient non-community | Groundwater |
| 13 | Farmer'S Co-Op Company | Carlton | 120 | Transient non-community | Groundwater |
| 14 | Covenant Park Bible Camp | Carlton | 120 | Transient non-community | Groundwater |
| 15 | Esko Sports Complex | Carlton | 100 | Transient non-community | Groundwater |
| 16 | Sweetly Kismet Candy Store | Carlton | 100 | Transient non-community | Groundwater |
| 17 | Knife Island Campground | Carlton | 100 | Transient non-community | Groundwater under influence of surface water |
| 18 | Big Lake Golf Resort | Carlton | 100 | Transient non-community | Groundwater |
| 19 | Caywood Country Store Esko | Carlton | 100 | Transient non-community | Groundwater |
| 20 | St. Matthew'S Lutheran Church | Carlton | 100 | Non-transient non-community | Groundwater |
| 21 | Rugged Spruce Golf Course | Carlton | 75 | Transient non-community | Groundwater |
| 22 | Elim Lutheran Church | Carlton | 75 | Transient non-community | Groundwater |
| 23 | Tequi Town | Carlton | 75 | Transient non-community | Groundwater |
| 24 | West Side Church | Carlton | 75 | Transient non-community | Groundwater |
| 25 | Cloquet/Duluth Koa | Carlton | 75 | Transient non-community | Groundwater |
| 26 | Elmwood Inn | Carlton | 70 | Transient non-community | Groundwater |
| 27 | Salem Lutheran Church | Carlton | 70 | Transient non-community | Groundwater |
| 28 | Bent Trout Lake Campground | Carlton | 60 | Transient non-community | Groundwater |
| 29 | Ram Mutual Insurance Company | Carlton | 60 | Non-transient non-community | Groundwater |
| 30 | Evangelical Free Church | Carlton | 60 | Transient non-community | Groundwater |
| 31 | Family Worship Church | Carlton | 60 | Transient non-community | Groundwater |
| 32 | Big Lake Shores Campground | Carlton | 50 | Transient non-community | Groundwater |
| 33 | Park Lake Restaurant and Saloon | Carlton | 50 | Transient non-community | Groundwater |
| 34 | Route 61 Lounge and Bowling | Carlton | 50 | Transient non-community | Groundwater |
| 35 | Bethany Lutheran Church | Carlton | 50 | Transient non-community | Groundwater |
| 36 | Island Lake Campground | Carlton | 50 | Transient non-community | Groundwater |
| 37 | Moose Lake State Park | Carlton | 50 | Transient non-community | Groundwater |
| 38 | Mini Mos Child Care | Carlton | 50 | Non-transient non-community | Groundwater |
| 39 | Mash-Ka-Wisen Treatment Center | Carlton | 50 | Non-transient non-community | Groundwater |
| 40 | Mahtowa Tavern | Carlton | 50 | Transient non-community | Groundwater |
| 41 | Lake Venoah Community | Carlton | 45 | Transient non-community | Groundwater |
| 42 | Kalli'S Place | Carlton | 45 | Transient non-community | Groundwater |
| 43 | Sonlife Community Church | Carlton | 40 | Transient non-community | Groundwater |
| 44 | Mahtowa Covenant Church | Carlton | 40 | Transient non-community | Groundwater |
| 45 | Esko Public School - Community Ed Bldg | Carlton | 40 | Non-transient non-community | Groundwater |
| 46 | Utopia Borealis | Carlton | 35 | Transient non-community | Groundwater |
| 47 | Thomson Town Hall | Carlton | 35 | Transient non-community | Groundwater |
| 48 | Northwood United Methodist Church | Carlton | 35 | Non-transient non-community | Groundwater |
| 49 | Red Fox Campground and Rv Park | Carlton | 30 | Transient non-community | Groundwater |
| 50 | U of M Cloquet Forestry Center | Carlton | 30 | Non-transient non-community | Groundwater |
All other water systems in Carlton County (25)
The remaining active systems filed under Carlton County, largest first, with the population each reports serving.
- Sawyer Store30
- Hanging Horn Lakeside Resort30
- Essentia Health Esko Distribution Center30
- Park Lake Campground30
- Chub Lake Park25
- Church of Jesus Christ Latter-Day Saints25
- Northridge Park25
- Pioneer Park25
- Sts. Mary & Joseph Catholic Church25
- County Seat Theater25
- Green Hill Camp25
- Holy Family Catholic Church25
- Bear Lake Park25
- Grace Church25
- Immaculate Conception Catholic Church25
- Perch Lake Town Hall25
- Arrowhead Springs, Inc..25
- Knife Island Campground - Showerhouse25
- Spring Oaks Campground25
- St. John'S Lutheran Church25
- T.J.'S Country Corner25
- Sawyer Chapel25
- River Inn25
- Wright Senior Citizens Center25
- Moose Lake/Carlton County Airport25
Carlton County water systems: frequently asked questions
How many public water systems are in Carlton County, Minnesota?
EPA's SDWIS records file 75 active public water systems under Carlton County, Minnesota: 10 community systems (13%), 10 non-transient non-community systems (13%) and 55 transient non-community systems (73%).
Who supplies drinking water in Carlton County, MN?
The largest community water systems filed under Carlton County are Cloquet (12,864 people served), Moose Lake (1,782 people served) and Carlton (1,146 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 Carlton County's drinking water come from groundwater or surface water?
Of the 75 active public water systems in Carlton County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Cloquet, uses groundwater.
Where can I find a water quality report for Carlton 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. 10 community systems are filed under Carlton 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 Carlton 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
- Goodhue County· 90 systems
- Olmsted County· 81 systems
- Sherburne County· 78 systems
- Winona County· 77 systems
- Kandiyohi County· 73 systems
- Todd County· 72 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 Carlton County, Minnesota”, https://aquacensus.com/water-systems/minnesota/carlton (data as of October 1, 2026).