Nicollet County, Minnesota — public water systems
At a glance
26 active public water systems are filed under Nicollet County, Minnesota in EPA's SDWIS records, together reporting 31,366 people served. The largest is North Mankato, which reports serving 14,448 people. 6 are community water systems serving people where they live; the other 20 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
26
Population served
31.4K
Community systems
6
Groundwater share
100%
How does Nicollet County compare with other Minnesota counties?
Nicollet County has the 62nd-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 31,366 people served in total, the 25th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 1,206 people, about 47% above 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 Nicollet County's drinking water come from?
By primary water source, Nicollet County's active systems draw on groundwater (26, 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, North Mankato, draws primarily on groundwater.
What kinds of water systems operate in Nicollet County?
Nicollet County's active systems break down as 6 community systems (23%), 7 non-transient non-community systems (27%) and 13 transient non-community systems (50%). 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 (69%), local government (23%) and state government (7.7%).
Water systems in Nicollet County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | North Mankato | Nicollet | 14,448 | Community | Groundwater |
| 2 | Saint Peter | Nicollet | 12,198 | Community | Groundwater |
| 3 | Nicollet | Nicollet | 1,117 | Community | Groundwater |
| 4 | Courtland | Nicollet | 635 | Community | Groundwater |
| 5 | Lafayette | Nicollet | 504 | Community | Groundwater |
| 6 | Scandian Grove Lutheran Church | Nicollet | 400 | Transient non-community | Groundwater |
| 7 | Minnesota Valley Lutheran High School | Nicollet | 300 | Non-transient non-community | Groundwater |
| 8 | Norseland Lutheran Church | Nicollet | 275 | Transient non-community | Groundwater |
| 9 | Immanuel Lutheran School and Church | Nicollet | 255 | Non-transient non-community | Groundwater |
| 10 | Fort Ridgely State Park | Nicollet | 200 | Transient non-community | Groundwater |
| 11 | St. George Catholic Church | Nicollet | 150 | Transient non-community | Groundwater |
| 12 | Irene E. Gluek Memorial Camp Building | Nicollet | 100 | Transient non-community | Groundwater |
| 13 | Seven Mile Creek Park | Nicollet | 100 | Transient non-community | Groundwater |
| 14 | Bernadotte Lutheran Church | Nicollet | 80 | Transient non-community | Groundwater |
| 15 | Oakhaven Campgrounds | Nicollet | 80 | Transient non-community | Groundwater |
| 16 | Zion Evangelical Lutheran Church | Nicollet | 75 | Transient non-community | Groundwater |
| 17 | Peaceful Valley Campsites | Nicollet | 70 | Transient non-community | Groundwater |
| 18 | Michael Foods Egg Products Co. | Nicollet | 60 | Non-transient non-community | Groundwater |
| 19 | Klossner Water Association | Nicollet | 54 | Community | Groundwater |
| 20 | Norseland Scout Camp | Nicollet | 50 | Transient non-community | Groundwater |
| 21 | N.U.Q.Q. | Nicollet | 50 | Transient non-community | Groundwater |
| 22 | New Sweden Dairy | Nicollet | 50 | Non-transient non-community | Groundwater |
| 23 | Northern Plains Dairy | Nicollet | 30 | Non-transient non-community | Groundwater |
| 24 | Nicollet Conservation Club | Nicollet | 30 | Transient non-community | Groundwater |
| 25 | High Island Dairy | Nicollet | 30 | Non-transient non-community | Groundwater |
| 26 | Wis-Pak, Inc.. | Nicollet | 25 | Non-transient non-community | Groundwater |
Nicollet County water systems: frequently asked questions
How many public water systems are in Nicollet County, Minnesota?
EPA's SDWIS records file 26 active public water systems under Nicollet County, Minnesota: 6 community systems (23%), 7 non-transient non-community systems (27%) and 13 transient non-community systems (50%).
Who supplies drinking water in Nicollet County, MN?
The largest community water systems filed under Nicollet County are North Mankato (14,448 people served), Saint Peter (12,198 people served) and Nicollet (1,117 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 Nicollet County's drinking water come from groundwater or surface water?
Of the 26 active public water systems in Nicollet County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, North Mankato, uses groundwater.
Where can I find a water quality report for Nicollet 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. 6 community systems are filed under Nicollet 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 Nicollet 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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- Murray County· 27 systems
- Lac qui Parle County· 23 systems
- Chippewa County· 22 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 Nicollet County, Minnesota”, https://aquacensus.com/water-systems/minnesota/nicollet (data as of October 1, 2026).