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Martin County, Minnesota — public water systems

At a glance

22 active public water systems are filed under Martin County, Minnesota in EPA's SDWIS records, together reporting 17,101 people served. The largest is Fairmont, which reports serving 10,328 people. 9 are community water systems serving people where they live; the other 13 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

22

Population served

17.1K

Community systems

9

Groundwater share

90.9%

How does Martin County compare with other Minnesota counties?

Martin County has the 65th-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 17,101 people served in total, the 46th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 777 people, roughly in line with 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 Martin County's drinking water come from?

By primary water source, Martin County's active systems draw on groundwater (20, 91%), surface water (1, 4.5%) and purchased surface water (1, 4.5%). Overall, 91% rely mainly on groundwater (including purchased groundwater) and 9.1% 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, Fairmont, draws primarily on surface water.

What kinds of water systems operate in Martin County?

Martin County's active systems break down as 9 community systems (41%), 1 non-transient non-community systems (4.5%) and 12 transient non-community systems (55%). 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 (59%) and local government (41%).

Water systems in Martin County

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Active public water systems in Martin County, Minnesota
#Water systemCountyPopulation servedTypeSource
1FairmontMartin10,328CommunitySurface water
2TrumanMartin1,115CommunityGroundwater
3SherburnMartin1,058CommunityGroundwater
4TrimontMartin734CommunityGroundwater
5WelcomeMartin653CommunityGroundwater
6Fox Lake Event CenterMartin390Transient non-communityGroundwater
7CeylonMartin369CommunityGroundwater
8Fairmont FoodsMartin325Non-transient non-communityPurchased surface water
9East Chain Evangelical Free ChurchMartin325Transient non-communityGroundwater
10GranadaMartin297CommunityGroundwater
11NorthropMartin211CommunityGroundwater
12Zion Lutheran ChurchMartin200Transient non-communityGroundwater
13Rj'S Lakeside Campground and Rv ParkMartin200Transient non-communityGroundwater
14Flying Goose CampgroundMartin200Transient non-communityGroundwater
15DunnellMartin167CommunityGroundwater
16East Chain Lutheran ChurchMartin165Transient non-communityGroundwater
17St. Paul Lutheran ChurchMartin129Transient non-communityGroundwater
18Fox Lake Golf Club, Inc..Martin60Transient non-communityGroundwater
19Rose Lake Golf Club, Inc..Martin60Transient non-communityGroundwater
20East Chain United Methodist ChurchMartin50Transient non-communityGroundwater
21Caven'S Landing, LLCMartin40Transient non-communityGroundwater
22Everett ParkMartin25Transient non-communityGroundwater

Martin County water systems: frequently asked questions

How many public water systems are in Martin County, Minnesota?

EPA's SDWIS records file 22 active public water systems under Martin County, Minnesota: 9 community systems (41%), 1 non-transient non-community systems (4.5%) and 12 transient non-community systems (55%).

Who supplies drinking water in Martin County, MN?

The largest community water systems filed under Martin County are Fairmont (10,328 people served), Truman (1,115 people served) and Sherburn (1,058 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 Martin County's drinking water come from groundwater or surface water?

Of the 22 active public water systems in Martin County, 91% draw mainly on groundwater and 9.1% on surface water, counting purchased supplies. The largest system, Fairmont, uses surface water.

Where can I find a water quality report for Martin 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. 9 community systems are filed under Martin 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 Martin 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

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 Martin County, Minnesota”, https://aquacensus.com/water-systems/minnesota/martin (data as of October 1, 2026).