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Alger County, Michigan — public water systems

At a glance

85 active public water systems are filed under Alger County, Michigan in EPA's SDWIS records, together reporting 9,767 people served. The largest is Munising, which reports serving 2,783 people. 5 are community water systems serving people where they live; the other 80 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

85

Population served

9.8K

Community systems

5

Groundwater share

100%

How does Alger County compare with other Michigan counties?

Alger County has the 51st-most active public water systems among the 131 counties listed for active Michigan systems in EPA records; among the 88 with 3 or more systems, the median has 92. Its systems report 9,767 people served in total, the 71st-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 115 people, well below the Michigan average of 847. 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 Alger County's drinking water come from?

By primary water source, Alger County's active systems draw on groundwater (85, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 97% and 3.1% across Michigan. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Munising, draws primarily on groundwater.

What kinds of water systems operate in Alger County?

Alger County's active systems break down as 5 community systems (5.9%), 5 non-transient non-community systems (5.9%) and 75 transient non-community systems (88%). 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 (79%), local government (8.2%), state government (8.2%) and federal government (4.7%).

The 50 largest water systems in Alger County

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Active public water systems in Alger County, Michigan
#Water systemCountyPopulation servedTypeSource
1MunisingAlger2,783CommunityGroundwater
2Munising Industrial ParkAlger465CommunityGroundwater
3Burt TownshipAlger411CommunityGroundwater
4ChathamAlger300CommunityGroundwater
5Pictured Rocks Rv Park & CampgroundAlger288Transient non-communityGroundwater
6Autrain Beach CampgroundAlger200Transient non-communityGroundwater
7Mdot - Grand Island Overlook, P238Alger200Transient non-communityGroundwater
8Tractor Supply - WetmoreAlger200Transient non-communityGroundwater
9Mdot - Scott Falls, P232Alger200Transient non-communityGroundwater
10Bear DenAlger200Transient non-communityGroundwater
11Mdot - Deer Lake R.P., P230Alger200Transient non-communityGroundwater
12Mdot - Kiva R.P., P206Alger200Transient non-communityGroundwater
13Mathias TownshipAlger175CommunityGroundwater
14Quality Inn - (Rm130-147/230-247/Pool)Alger160Transient non-communityGroundwater
15Quality Inn - (Rm114-127/214-226)Alger150Transient non-communityGroundwater
16Quality Inn - (Rm101-112/201-212/Food)Alger150Transient non-communityGroundwater
17White Pine LodgeAlger150Transient non-communityGroundwater
18Koa Munsing CampgroundAlger145Transient non-communityGroundwater
19Buckhorn Management Group, LLCAlger144Transient non-communityGroundwater
20Americinn - MunisingAlger125Transient non-communityGroundwater
21Holiday Inn Express - MunisingAlger110Transient non-communityGroundwater
22Munising Baptist SchoolAlger100Non-transient non-communityGroundwater
23Usnps - Grand Sable Visitor CenterAlger100Transient non-communityGroundwater
24Circle K - Wetmore #2746416Alger100Transient non-communityGroundwater
25Pictured Rocks Golf CourseAlger80Transient non-communityGroundwater
26Dnr-Kingston Lake CgAlger75Transient non-communityGroundwater
27Duck PondAlger75Transient non-communityGroundwater
28Usnps - Lower HurricaneAlger75Transient non-communityGroundwater
29Usnps - Upper HurricaneAlger75Transient non-communityGroundwater
30Usnps - Sable FallsAlger75Transient non-communityGroundwater
31Usfs - Autrain Lake CampgroundAlger75Transient non-communityGroundwater
32Usnps - 12 Mile EastAlger75Transient non-communityGroundwater
33Bear Trap InnAlger75Transient non-communityGroundwater
34Usnps - Miners CastleAlger75Transient non-communityGroundwater
35Usnps - Little BeaverAlger75Transient non-communityGroundwater
36Autrain-Onota Public SchoolAlger63Non-transient non-communityGroundwater
37Foggy'S BarAlger50Transient non-communityGroundwater
38Joeida CampgroundAlger50Transient non-communityGroundwater
39Midway General StoreAlger50Transient non-communityGroundwater
40Usnps - 12 Mile WestAlger50Transient non-communityGroundwater
41Usfs - Bay Furnace CampgroundAlger50Transient non-communityGroundwater
42Usfs - Widewaters Campground Well HouseAlger50Transient non-communityGroundwater
43Miners Falls Mini GolfAlger50Transient non-communityGroundwater
44Boarders Inn & SuitesAlger50Transient non-communityGroundwater
45Pictured Rocks Trading CompanyAlger50Transient non-communityGroundwater
46Dnr-Forest Lake CgAlger50Transient non-communityGroundwater
47Hillcrest MotelAlger45Transient non-communityGroundwater
48Munising Seventh-Day Adventist ChurchAlger40Transient non-communityGroundwater
49Dana`S Lakeside ResortAlger40Transient non-communityGroundwater
50Yule Log ResortAlger38Transient non-communityGroundwater

All other water systems in Alger County (35)

The remaining active systems filed under Alger County, largest first, with the population each reports serving.

Alger County water systems: frequently asked questions

How many public water systems are in Alger County, Michigan?

EPA's SDWIS records file 85 active public water systems under Alger County, Michigan: 5 community systems (5.9%), 5 non-transient non-community systems (5.9%) and 75 transient non-community systems (88%).

Who supplies drinking water in Alger County, MI?

The largest community water systems filed under Alger County are Munising (2,783 people served), Munising Industrial Park (465 people served) and Burt Township (411 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 Alger County's drinking water come from groundwater or surface water?

Of the 85 active public water systems in Alger County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Munising, uses groundwater.

Where can I find a water quality report for Alger 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. 5 community systems are filed under Alger 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 Alger 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 Michigan 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 Alger County, Michigan”, https://aquacensus.com/water-systems/michigan/alger (data as of October 1, 2026).