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Mason County, Michigan — public water systems

At a glance

83 active public water systems are filed under Mason County, Michigan in EPA's SDWIS records, together reporting 24,180 people served. The largest is Ludington, which reports serving 8,184 people. 8 are community water systems serving people where they live; the other 75 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

83

Population served

24.2K

Community systems

8

Groundwater share

95.2%

How does Mason County compare with other Michigan counties?

Mason County has the 55th-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 24,180 people served in total, the 54th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 291 people, about 66% 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 Mason County's drinking water come from?

By primary water source, Mason County's active systems draw on groundwater (79, 95%), purchased surface water (3, 3.6%) and surface water (1, 1.2%). Overall, 95% rely mainly on groundwater (including purchased groundwater) and 4.8% 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, Ludington, draws primarily on surface water.

What kinds of water systems operate in Mason County?

Mason County's active systems break down as 8 community systems (9.6%), 9 non-transient non-community systems (11%) and 66 transient non-community systems (80%). 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 (89%), local government (4.8%), state government (3.6%) and federal government (2.4%).

The 50 largest water systems in Mason County

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Active public water systems in Mason County, Michigan
#Water systemCountyPopulation servedTypeSource
1LudingtonMason8,184CommunitySurface water
2Ludington State Park CgMason1,700Transient non-communityGroundwater
3Scottville, City ofMason1,536CommunityPurchased surface water
4Tamarac VillageMason873CommunityGroundwater
5Mdot - Ludington Rest AreaMason700Transient non-communityGroundwater
6Lamans LandingMason500Transient non-communityGroundwater
7Mason Co Eastern HsMason480Non-transient non-communityGroundwater
8Pere Marquette Twp - WellsMason455CommunityGroundwater
9Forest Trail Ez MartMason450Transient non-communityGroundwater
10Days Inn - PentwaterMason400Transient non-communityGroundwater
11Kibby Creek Family EnterprisesMason400Transient non-communityGroundwater
12Kibby Creek Travel ParkMason400Transient non-communityGroundwater
13Pere Marquette Twp - CustomerMason339CommunityPurchased surface water
14Fountain MarketMason300Transient non-communityGroundwater
15St. Mary'S ChurchMason300Transient non-communityGroundwater
16Kibby Creek Travel Park (Seasonal)Mason300Transient non-communityGroundwater
17Cox Ranch VenueMason291Transient non-communityGroundwater
18Indian Summer Co-OpMason260Non-transient non-communityGroundwater
19Orchard MarketMason250Transient non-communityGroundwater
20Ludington State Park Contact StationMason250Transient non-communityGroundwater
21Buttersville ParkMason246Transient non-communityGroundwater
22Barnharts MarinaMason200Transient non-communityGroundwater
23Cardinal RestaurantMason200Transient non-communityGroundwater
24Whispering Surf at Bass Lk CgMason200Transient non-communityGroundwater
25Michigan Food Processors Co-OpMason187Non-transient non-communityGroundwater
26Holiday Village Mobile Home ParkMason185CommunityGroundwater
27Custer Vfw Gold Bar Post 5096Mason175Transient non-communityGroundwater
28Jolly PlateMason175Transient non-communityGroundwater
29Hemlock Golf ClubMason175Transient non-communityGroundwater
30Manistee Forest Pines EstatesMason174CommunityGroundwater
31Lighthouse Baptist ChurchMason155Transient non-communityGroundwater
32Pioneer Party StoreMason150Transient non-communityGroundwater
33Mason County CampgroundMason150Transient non-communityGroundwater
34Henry'S Landing LLCMason150Transient non-communityGroundwater
35Riverside Park CampgroundMason150Transient non-communityGroundwater
36Oaktree AcademyMason143Non-transient non-communityGroundwater
37Our Saviour'S Lutheran Church-ScottvilleMason142Transient non-communityGroundwater
38StixMason140Transient non-communityGroundwater
39Crossroads Church - 2384Mason120Transient non-communityGroundwater
40Ludington Pumped Storage PlantMason120Non-transient non-communityGroundwater
41Sauble ResortMason120Transient non-communityGroundwater
42Whiskey Creek Campground (Bathhouse)Mason102Transient non-communityGroundwater
43Whiskey Creek Campground (Lodge)Mason100Transient non-communityGroundwater
44Usfs - Lmra Picnic Area Hand PumpMason100Transient non-communityGroundwater
45Crystal Lake CampgroundMason100Transient non-communityGroundwater
46Beacon MinistriesMason100Transient non-communityGroundwater
47Peaceful Acres ResortMason100Transient non-communityGroundwater
48Ludington Area St Paul ChurchMason85Transient non-communityGroundwater
49Camp Douglas SmithMason80Transient non-communityGroundwater
50Doc'S on the RiverMason75Transient non-communityGroundwater

All other water systems in Mason County (33)

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

Mason County water systems: frequently asked questions

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

EPA's SDWIS records file 83 active public water systems under Mason County, Michigan: 8 community systems (9.6%), 9 non-transient non-community systems (11%) and 66 transient non-community systems (80%).

Who supplies drinking water in Mason County, MI?

The largest community water systems filed under Mason County are Ludington (8,184 people served), City of Scottville (1,536 people served) and Tamarac Village (873 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 Mason County's drinking water come from groundwater or surface water?

Of the 83 active public water systems in Mason County, 95% draw mainly on groundwater and 4.8% on surface water, counting purchased supplies. The largest system, Ludington, uses surface water.

Where can I find a water quality report for Mason 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. 8 community systems are filed under Mason 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 Mason 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 Mason County, Michigan”, https://aquacensus.com/water-systems/michigan/mason (data as of October 1, 2026).