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AquaCensus

Michigan public water systems

10,597 active systems regulated under the Safe Drinking Water Act, serving a reported 9M people across 128 counties.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

10,597

Population served

9M

Community systems

1,331

Groundwater share

96.9%

System types in Michigan

1,331

Community water system

1,402

Non-transient non-community water system

7,864

Transient non-community water system

Largest water systems in Michigan

The largest active public water systems in Michigan by population served
#Water systemCountyPopulation servedTypeSource
1Detroit City ofWayne633,218CommunityPurchased surface water
2Grand RapidsKent306,901CommunitySurface water
3KalamazooKalamazoo192,992CommunityGroundwater
4Lansing Board of Water & LightIngham166,000CommunityGroundwater
5Warren, City ofMacomb134,056CommunityPurchased surface water
6Sterling Heights, City ofMacomb127,000CommunityPurchased surface water
7Ann ArborWashtenaw123,851CommunitySurface water
8DearbornWayne109,976CommunityPurchased surface water
9Clinton TownshipMacomb100,513CommunityPurchased surface water
10Canton TownshipWayne99,627CommunitySurface water
11LivoniaWayne96,942CommunityPurchased surface water
12Macomb TownshipMacomb90,000CommunityPurchased surface water
13TroyOakland85,854CommunityPurchased surface water
14WestlandWayne85,420CommunityPurchased surface water
15Flint, City ofGenesee81,252CommunityPurchased surface water
16Rochester HillsOakland74,000CommunityPurchased surface water
17Genesee County Water SystemGenesee73,726CommunityPurchased surface water
18Waterford TownshipOakland73,441CommunityGroundwater
19WyomingKent72,125CommunitySurface water
20Shelby TownshipMacomb72,000CommunityPurchased surface water
21SouthfieldOakland71,739CommunityPurchased surface water
22PontiacOakland63,776CommunityPurchased surface water
23TaylorWayne63,409CommunityPurchased surface water
24St. Clair Shores, City ofMacomb59,715CommunityPurchased surface water
25Dearborn HeightsWayne57,774CommunityPurchased surface water

By county

Oakland733 systemsLivingston425 systemsKent397 systemsGenesee378 systemsAllegan303 systemsWashtenaw262 systemsLapeer235 systemsOttawa225 systemsRoscommon222 systemsJackson219 systemsMuskegon210 systemsEmmet198 systemsBerrien196 systemsKalamazoo187 systemsBarry183 systemsLenawee182 systemsCheboygan179 systemsGrand Traverse173 systemsVan Buren161 systemsMontcalm159 systemsMecosta152 systemsCalhoun142 systemsNewaygo137 systemsLeelanau137 systemsCass135 systemsChippewa134 systemsClare130 systemsOceana129 systemsShiawassee126 systemsSt. Joseph125 systemsIonia122 systemsOtsego119 systemsOgemaw117 systemsCharlevoix114 systemsMackinac113 systemsAntrim111 systemsWexford109 systemsIngham108 systemsBenzie107 systemsEaton103 systemsHuron101 systemsSt. Clair96 systemsOsceola92 systemsMacomb92 systemsTuscola91 systemsCrawford91 systemsHillsdale90 systemsManistee89 systemsMarquette88 systemsClinton87 systemsAlger85 systemsGladwin84 systemsMonroe83 systemsIsabella83 systemsMason83 systemsIosco81 systemsSanilac74 systemsLake73 systemsGratiot73 systemsBranch71 systemsOscoda70 systemsKalkaska69 systemsAlcona68 systemsSchoolcraft66 systemsArenac65 systemsDelta64 systemsSaginaw60 systemsWayne55 systemsMontmorency54 systemsMissaukee51 systemsLuce50 systemsPresque Isle50 systemsAlpena48 systemsHoughton46 systemsMenominee45 systemsGogebic40 systemsDickinson33 systemsMidland33 systemsBay29 systemsIron29 systemsOntonagon25 systemsBaraga23 systemsKeweenaw19 systemsWashington5 systemsWorcester4 systemsAdams3 systemsYork3 systems
Geauga2 systems
Harris2 systems
Montgomery2 systems
Allegheny2 systems
Kankakee2 systems
Wicomico2 systems
Lancaster2 systems
Summit2 systems
Williams2 systems
Mercer2 systems
Portage2 systems
Brazoria2 systems
Laclede1 systems
Gwinnett1 systems
Goodhue1 systems
Wood1 systems
Van Zandt1 systems
Waller1 systems
Knox1 systems
Fauquier1 systems
Gaines1 systems
Ector1 systems
Carroll1 systems
Grand1 systems
Dauphin1 systems
Northampton1 systems
Marion1 systems
Cook1 systems
St. Mary's1 systems
Anne Arundel1 systems
Denton1 systems
Harford1 systems
Marshall1 systems
McLean1 systems
Coshocton1 systems
Butler1 systems
Coles1 systems
Lucas1 systems
Beltrami1 systems
Randall1 systems
Hidalgo1 systems