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Oceana County, Michigan — public water systems

At a glance

129 active public water systems are filed under Oceana County, Michigan in EPA's SDWIS records, together reporting 30,487 people served. The largest is Hart, which reports serving 2,126 people. 5 are community water systems serving people where they live; the other 124 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

129

Population served

30.5K

Community systems

5

Groundwater share

100%

How does Oceana County compare with other Michigan counties?

Oceana County has the 28th-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 30,487 people served in total, the 44th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 236 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 Oceana County's drinking water come from?

By primary water source, Oceana County's active systems draw on groundwater (129, 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, Hart, draws primarily on groundwater.

What kinds of water systems operate in Oceana County?

Oceana County's active systems break down as 5 community systems (3.9%), 16 non-transient non-community systems (12%) and 108 transient non-community systems (84%). 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 (95%), local government (2.3%), state government (2.3%) and federal government (0.8%).

The 50 largest water systems in Oceana County

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Active public water systems in Oceana County, Michigan
#Water systemCountyPopulation servedTypeSource
1HartOceana2,126CommunityGroundwater
2ShelbyOceana1,964CommunityGroundwater
3Gateway Plaza HartOceana1,103Non-transient non-communityGroundwater
4Rothbury Wesco - Store #51Oceana900Transient non-communityGroundwater
5PentwaterOceana857CommunityGroundwater
6Wishing Well Ez Mart #899Oceana850Transient non-communityGroundwater
7Silver Lake Resort & CampgroundOceana800Transient non-communityGroundwater
8Dnr - Silver Lk Sp-Orv BldgOceana800Transient non-communityGroundwater
9Peterson FarmsOceana795Non-transient non-communityGroundwater
10Mac Woods Dune RidesOceana750Transient non-communityGroundwater
11Woodland Shores CampsitesOceana650Transient non-communityGroundwater
12Mdot - Rothbury, R529Oceana650Transient non-communityGroundwater
13Dunes Harbor Family CampOceana550Transient non-communityGroundwater
14Shelby Road Baptist ChurchOceana550Transient non-communityGroundwater
15Silver Lake Jellystone Pool LowerOceana500Transient non-communityGroundwater
16Pentwater Convenience StoreOceana500Transient non-communityGroundwater
17Hill and Hollow CampgroundOceana500Transient non-communityGroundwater
18Mdot - Hart Rest Area, R530Oceana500Transient non-communityGroundwater
19Silver Lake Jellystone Office/DunetownOceana500Transient non-communityGroundwater
20Lewis Adventure FarmOceana500Transient non-communityGroundwater
21Mccormick New EraOceana500Transient non-communityGroundwater
22Shelby Corner MarketOceana450Transient non-communityGroundwater
23Val-Du-Lakes Bar & GrillOceana450Transient non-communityGroundwater
24Sandy Shores Campground-MearsOceana375Transient non-communityGroundwater
25Walkerville Public Schools - West WellOceana360Non-transient non-communityGroundwater
26Walkerville Pub Schls - South Well #2Oceana360Non-transient non-communityGroundwater
27Holiday Camping ResortOceana340Transient non-communityGroundwater
28Rothbury Community ChurchOceana340Transient non-communityGroundwater
29Opc Arbre Farms - West CampOceana304Non-transient non-communityGroundwater
30Woodland Shores ClubhouseOceana300Transient non-communityGroundwater
31Silver ScoopsOceana300Transient non-communityGroundwater
32Silver Lake State ParkOceana300Transient non-communityGroundwater
33Grace AdventuresOceana300Transient non-communityGroundwater
34Wesco New Era - #17Oceana300Transient non-communityGroundwater
35Silver Lake Shores Gas and GoOceana300Transient non-communityGroundwater
36Opc Arbre Farms - North CampOceana262Non-transient non-communityGroundwater
37Antler Bar AmusementOceana259Non-transient non-communityGroundwater
38Silver Hills CampgroundOceana250Transient non-communityGroundwater
39Farmhouse Kitchen and MarketOceana240Transient non-communityGroundwater
40Silver Lake Jellystone Upper BhOceana200Transient non-communityGroundwater
41Tasty CreationzOceana200Transient non-communityGroundwater
42Hideaway CampgroundOceana200Transient non-communityGroundwater
43Back Forty ResortOceana200Transient non-communityGroundwater
44Benona Shores GcOceana200Transient non-communityGroundwater
45Golden Sands Golf CourseOceana200Transient non-communityGroundwater
46Opc Arbre Farms-Willow Cold StorageOceana195Non-transient non-communityGroundwater
47New Era ElementaryOceana188Non-transient non-communityGroundwater
48Stony Haven Campground & CabinsOceana180Transient non-communityGroundwater
49Camp Tall TurfOceana180Transient non-communityGroundwater
50Burnette Foods Inc.Oceana175Non-transient non-communityGroundwater

All other water systems in Oceana County (79)

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

Oceana County water systems: frequently asked questions

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

EPA's SDWIS records file 129 active public water systems under Oceana County, Michigan: 5 community systems (3.9%), 16 non-transient non-community systems (12%) and 108 transient non-community systems (84%).

Who supplies drinking water in Oceana County, MI?

The largest community water systems filed under Oceana County are Hart (2,126 people served), Shelby (1,964 people served) and Pentwater (857 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 Oceana County's drinking water come from groundwater or surface water?

Of the 129 active public water systems in Oceana County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Hart, uses groundwater.

Where can I find a water quality report for Oceana 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 Oceana 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 Oceana 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 Oceana County, Michigan”, https://aquacensus.com/water-systems/michigan/oceana (data as of October 1, 2026).