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Kent County, Michigan — public water systems

At a glance

397 active public water systems are filed under Kent County, Michigan in EPA's SDWIS records, together reporting 648,694 people served. The largest is Grand Rapids, which reports serving 306,901 people. 43 are community water systems serving people where they live; the other 354 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

397

Population served

648.7K

Community systems

43

Groundwater share

97.7%

How does Kent County compare with other Michigan counties?

Kent County has the 3rd-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 648,694 people served in total, the 4th-largest county figure in the state and 7.2% of the statewide total. The average system here reports serving 1,634 people, about twice 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 Kent County's drinking water come from?

By primary water source, Kent County's active systems draw on groundwater (386, 97%), purchased surface water (7, 1.8%), surface water (2, 0.5%) and purchased groundwater (1, 0.3%). Overall, 98% rely mainly on groundwater (including purchased groundwater) and 2.3% 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, Grand Rapids, draws primarily on surface water.

What kinds of water systems operate in Kent County?

Kent County's active systems break down as 43 community systems (11%), 57 non-transient non-community systems (14%) and 297 transient non-community systems (75%). 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 (94%), local government (4.3%) and state government (1.5%).

The 50 largest water systems in Kent County

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Active public water systems in Kent County, Michigan
#Water systemCountyPopulation servedTypeSource
1Grand RapidsKent306,901CommunitySurface water
2WyomingKent72,125CommunitySurface water
3Plainfield TownshipKent42,271CommunityGroundwater under influence of surface water
4Byron-Gaines Utility AuthorityKent37,464CommunityPurchased surface water
5KentwoodKent36,072CommunityPurchased surface water
6GrandvilleKent15,948CommunityPurchased surface water
7East Grand RapidsKent11,637CommunityPurchased surface water
8Ada TownshipKent7,584CommunityPurchased surface water
9RockfordKent7,160CommunityGroundwater
10Caledonia TownshipKent4,573CommunityGroundwater
11LowellKent4,150CommunityGroundwater
12SpartaKent4,140CommunityGroundwater
13Lake Bella VistaKent3,584CommunityGroundwater
14Cedar SpringsKent3,520CommunityGroundwater
15Meijer #248 Solon TwpKent3,250Non-transient non-communityGroundwater
16Schwallier'S Country BasketKent2,400Transient non-communityGroundwater
17Speedway 6272 / Emro MarketingKent2,126Transient non-communityGroundwater
18Lowell TownshipKent1,958CommunityPurchased groundwater
19Mdot - Rockford, R525Kent1,814Transient non-communityGroundwater
20Campau CornerKent1,500Transient non-communityGroundwater
21Lowell Mobil MartKent1,450Transient non-communityGroundwater
22Ada Bible ChurchKent1,410Transient non-communityGroundwater
23Caledonia D&W Fresh MarketKent1,300Non-transient non-communityGroundwater
24Ago - Tow'S Country Store #43Kent1,110Transient non-communityGroundwater
25Vergennes J&H Family StoreKent1,067Transient non-communityGroundwater
26Ago - Cottage Market #33Kent1,000Transient non-communityGroundwater
27Log Cabin GroceryKent900Transient non-communityGroundwater
28Cannonsburg Ski Area -Main LodgeKent900Transient non-communityGroundwater
29East Rockford Middle SchoolKent884Non-transient non-communityGroundwater
30Oaks of RockfordKent860CommunityGroundwater
31Corewell Health Blodgett HospitalKent810Non-transient non-communityPurchased surface water
32Cedar Rock Mobil MartKent800Transient non-communityGroundwater
33Bella Vista ChurchKent800Transient non-communityGroundwater
34Alto MarathonKent800Transient non-communityGroundwater
35Nuvu Fuels #2Kent800Transient non-communityGroundwater
36Kent City Elementary ComplexKent788Non-transient non-communityGroundwater
37Kent City High & Middle SchoolKent740Non-transient non-communityGroundwater
38Key Heights Mobile VillageKent715CommunityGroundwater
39Aldi #102Kent712Transient non-communityGroundwater
40Kent City Baptist ChurchKent708Transient non-communityGroundwater
41Northern Springs MobilKent700Transient non-communityGroundwater
42Caledonia BpKent650Transient non-communityGroundwater
43Saskatoon Golf Club Inc.Kent620Transient non-communityGroundwater
44Bostwick Lake InnKent612Transient non-communityGroundwater
45Calvary Baptist Church-GreenvilleKent600Transient non-communityGroundwater
46Boulder Ridge Wild Animal ParkKent600Transient non-communityGroundwater
47Caledonia Center MallKent600Non-transient non-communityGroundwater
48Calvary Baptist Church-Greenvl ClassrmsKent600Transient non-communityGroundwater
49Cannonsburg Grist MillKent600Transient non-communityGroundwater
50Brinks Ice Cream ExpressKent600Transient non-communityGroundwater

All other water systems in Kent County (347)

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

Kent County water systems: frequently asked questions

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

EPA's SDWIS records file 397 active public water systems under Kent County, Michigan: 43 community systems (11%), 57 non-transient non-community systems (14%) and 297 transient non-community systems (75%).

Who supplies drinking water in Kent County, MI?

The largest community water systems filed under Kent County are Grand Rapids (306,901 people served), Wyoming (72,125 people served) and Plainfield Township (42,271 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 Kent County's drinking water come from groundwater or surface water?

Of the 397 active public water systems in Kent County, 98% draw mainly on groundwater and 2.3% on surface water, counting purchased supplies. The largest system, Grand Rapids, uses surface water.

Where can I find a water quality report for Kent 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. 43 community systems are filed under Kent 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 Kent 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 Kent County, Michigan”, https://aquacensus.com/water-systems/michigan/kent (data as of October 1, 2026).