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Kalamazoo County, Michigan — public water systems

At a glance

188 active public water systems are filed under Kalamazoo County, Michigan in EPA's SDWIS records, together reporting 284,488 people served. The largest is Kalamazoo, which reports serving 192,992 people. 19 are community water systems serving people where they live; the other 169 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

188

Population served

284.5K

Community systems

19

Groundwater share

100%

How does Kalamazoo County compare with other Michigan counties?

Kalamazoo County has the 14th-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 284,488 people served in total, the 7th-largest county figure in the state and 3.2% of the statewide total. The average system here reports serving 1,513 people, about 79% above 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 Kalamazoo County's drinking water come from?

By primary water source, Kalamazoo County's active systems draw on groundwater (188, 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, Kalamazoo, draws primarily on groundwater.

What kinds of water systems operate in Kalamazoo County?

Kalamazoo County's active systems break down as 19 community systems (10%), 30 non-transient non-community systems (16%) and 139 transient non-community systems (74%). 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 (91%), local government (4.8%) and state government (3.7%).

The 50 largest water systems in Kalamazoo County

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Active public water systems in Kalamazoo County, Michigan
#Water systemCountyPopulation servedTypeSource
1KalamazooKalamazoo192,992CommunityGroundwater
2PortageKalamazoo46,292CommunityGroundwater
3PfizerKalamazoo4,000Non-transient non-communityGroundwater
4VicksburgKalamazoo2,906CommunityGroundwater
5GalesburgKalamazoo2,377CommunityGroundwater
6Mdot - Galesburg Rest AreaKalamazoo1,932Transient non-communityGroundwater
7SchoolcraftKalamazoo + 1 more1,405CommunityGroundwater
8Mdot - Plainwell Rest AreaKalamazoo1,087Transient non-communityGroundwater
9Kalamazoo Speedway - Main WellKalamazoo905Transient non-communityGroundwater
10AugustaKalamazoo885CommunityGroundwater
11Dnr-Fort Custer Main CampgroundKalamazoo880Transient non-communityGroundwater
12Foundation for Behavioral ResourcesKalamazoo800Transient non-communityGroundwater
13ClimaxKalamazoo767CommunityGroundwater
14South Portage Little League NorthKalamazoo700Transient non-communityGroundwater
15Ago - D Avenue Citgo #38Kalamazoo700Transient non-communityGroundwater
16South Portage Little League SouthKalamazoo700Transient non-communityGroundwater
17Nazarene CampKalamazoo648CommunityGroundwater
18Galesburg SpeedwayKalamazoo500Transient non-communityGroundwater
19Kalamazoo Co Prks Cold Brook Modern CampKalamazoo500Transient non-communityGroundwater
20Kalamazoo County Parks Cold Brook BeachKalamazoo500Transient non-communityGroundwater
21D Avenue Fuel PlazaKalamazoo500Transient non-communityGroundwater
22Richland 23 Inc.Kalamazoo500Transient non-communityGroundwater
23St. Ann Catholic ChurchKalamazoo400Transient non-communityGroundwater
24Haven ChurchKalamazoo400Transient non-communityGroundwater
25Royal EstatesKalamazoo380CommunityGroundwater
26Vcs/Tobey ElementaryKalamazoo378Non-transient non-communityGroundwater
27Connections ChurchKalamazoo350Transient non-communityGroundwater
28Kalamazoo Speedway - Pit Area WellKalamazoo350Transient non-communityGroundwater
29Eastwood Little LeagueKalamazoo320Transient non-communityGroundwater
30Olde Mill Golf CourseKalamazoo316Transient non-communityGroundwater
31Alamo Elementary SchoolKalamazoo310Non-transient non-communityGroundwater
32Outdoor Adventures Kalamazoo Resort - MaKalamazoo300Transient non-communityGroundwater
33Vcs - Indian Lake ElementaryKalamazoo300Non-transient non-communityGroundwater
34Rector Community ParkKalamazoo300Transient non-communityGroundwater
35Outdoor Adventures, Kalamazoo, Park ModeKalamazoo300Transient non-communityGroundwater
36Hickory Ridge Golf CourseKalamazoo300Transient non-communityGroundwater
37Cooper MarketKalamazoo300Transient non-communityGroundwater
38J & H Oil Co - KalamazooKalamazoo300Transient non-communityGroundwater
39Gull Lk View Stonehedge N Halfway HouseKalamazoo300Transient non-communityGroundwater
40Pretty Lake Vacation CampKalamazoo300Transient non-communityGroundwater
41Gull Lake View Villa HousingKalamazoo286Transient non-communityGroundwater
42The Dock at BayviewKalamazoo270Transient non-communityGroundwater
43Glcs - Kellogg ElementaryKalamazoo268Non-transient non-communityGroundwater
44Oak Shores Resort Campground 1Kalamazoo260Transient non-communityGroundwater
45Outdoor Adventures Kalamazoo Resort - PoKalamazoo250Transient non-communityGroundwater
46Northbridge ChurchKalamazoo250Transient non-communityGroundwater
47Kalamazoo Co Parks Prairie View BeachKalamazoo250Transient non-communityGroundwater
48Pretty Lake Vacation CampKalamazoo250Transient non-communityGroundwater
49Schoolcraft Township ParkKalamazoo250Transient non-communityGroundwater
50Barn Theater Rehearsal ShedKalamazoo250Transient non-communityGroundwater

All other water systems in Kalamazoo County (138)

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

Kalamazoo County water systems: frequently asked questions

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

EPA's SDWIS records file 188 active public water systems under Kalamazoo County, Michigan: 19 community systems (10%), 30 non-transient non-community systems (16%) and 139 transient non-community systems (74%).

Who supplies drinking water in Kalamazoo County, MI?

The largest community water systems filed under Kalamazoo County are Kalamazoo (192,992 people served), Portage (46,292 people served) and Vicksburg (2,906 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 Kalamazoo County's drinking water come from groundwater or surface water?

Of the 188 active public water systems in Kalamazoo County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Kalamazoo, uses groundwater.

Where can I find a water quality report for Kalamazoo 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. 19 community systems are filed under Kalamazoo 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 Kalamazoo 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 Kalamazoo County, Michigan”, https://aquacensus.com/water-systems/michigan/kalamazoo (data as of October 1, 2026).