Cass County, Michigan — public water systems
At a glance
135 active public water systems are filed under Cass County, Michigan in EPA's SDWIS records, together reporting 33,840 people served. The largest is Dowagiac, which reports serving 6,350 people. 16 are community water systems serving people where they live; the other 119 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
135
Population served
33.8K
Community systems
16
Groundwater share
100%
How does Cass County compare with other Michigan counties?
Cass County has the 25th-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 33,840 people served in total, the 39th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 251 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 Cass County's drinking water come from?
By primary water source, Cass County's active systems draw on groundwater (134, 99%) and purchased groundwater (1, 0.7%). 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, Dowagiac, draws primarily on groundwater.
What kinds of water systems operate in Cass County?
Cass County's active systems break down as 16 community systems (12%), 15 non-transient non-community systems (11%) and 104 transient non-community systems (77%). 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 (96%) and local government (3.7%).
The 50 largest water systems in Cass County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Dowagiac | Cass | 6,350 | Community | Groundwater |
| 2 | Cassopolis | Cass | 1,815 | Community | Groundwater |
| 3 | Cass County Water System | Cass | 1,350 | Community | Groundwater |
| 4 | Edwardsburg | Cass | 1,260 | Community | Groundwater |
| 5 | Marcellus | Cass | 1,198 | Community | Groundwater |
| 6 | Howard-Ellis Elementary | Cass | 780 | Non-transient non-community | Groundwater |
| 7 | Shady Point Campground West Well | Cass | 640 | Transient non-community | Groundwater |
| 8 | Willow Shores Campground 2 | Cass | 600 | Transient non-community | Groundwater |
| 9 | Willow Shores Campground 1 | Cass | 600 | Transient non-community | Groundwater |
| 10 | Willow Shores Campground 3 | Cass | 600 | Transient non-community | Groundwater |
| 11 | Loyal Order of Moose 933 | Cass | 575 | Transient non-community | Groundwater |
| 12 | Camelot Campground East Well | Cass | 560 | Transient non-community | Groundwater |
| 13 | Camelot Campground | Cass | 560 | Transient non-community | Groundwater |
| 14 | Spaulding Lake Campground | Cass | 484 | Transient non-community | Groundwater |
| 15 | Melville'S 7 Lakes Family Campground LLC | Cass | 400 | Transient non-community | Groundwater |
| 16 | Edwardsburg Conservation Club | Cass | 400 | Transient non-community | Groundwater |
| 17 | Melville'S 7 Lakes Family Campground Off | Cass | 400 | Transient non-community | Groundwater |
| 18 | Melville'S 7 Lakes Fmly Cg San Station | Cass | 400 | Transient non-community | Groundwater |
| 19 | Cranberry Lake Campground | Cass | 396 | Transient non-community | Groundwater |
| 20 | Cranberry Lake Campground 3 | Cass | 396 | Transient non-community | Groundwater |
| 21 | Eagle Lake Elem School East Well | Cass | 388 | Non-transient non-community | Groundwater |
| 22 | Eagle Lake Elem School West Well | Cass | 388 | Non-transient non-community | Groundwater |
| 23 | Bair Lake Bible Camp | Cass | 372 | Community | Groundwater |
| 24 | Goff Lake Campground | Cass | 360 | Transient non-community | Groundwater |
| 25 | Camp Tamarack | Cass | 350 | Transient non-community | Groundwater |
| 26 | Hemlock Lake Campground, Inc.. | Cass | 332 | Transient non-community | Groundwater |
| 27 | Shady Point Campground House Well | Cass | 320 | Transient non-community | Groundwater |
| 28 | Kincheloe Elementary | Cass | 300 | Non-transient non-community | Groundwater |
| 29 | Hope Community Church-Niles | Cass | 300 | Transient non-community | Groundwater |
| 30 | American Legion #365 | Cass | 300 | Transient non-community | Groundwater |
| 31 | Our Lady of the Lake Catholic Parish | Cass | 300 | Transient non-community | Groundwater |
| 32 | Mill'S Meat and Grocery | Cass | 300 | Transient non-community | Groundwater |
| 33 | Colonial Acres | Cass | 265 | Community | Groundwater |
| 34 | Summit Life | Cass | 250 | Transient non-community | Groundwater |
| 35 | Edwardsburg Sports Complex | Cass | 250 | Transient non-community | Groundwater |
| 36 | Sacred Heart of Mary-Dowagiac | Cass | 250 | Transient non-community | Groundwater |
| 37 | Camp Friedenswald-Dining | Cass | 240 | Transient non-community | Groundwater |
| 38 | Camp Friedenswald-North Cabins | Cass | 240 | Transient non-community | Groundwater |
| 39 | Camp Friedenswald-South Cabins | Cass | 240 | Transient non-community | Groundwater |
| 40 | Eagle Lake Estates MHP | Cass | 230 | Community | Groundwater |
| 41 | Pitcher Lake Campground | Cass | 228 | Transient non-community | Groundwater |
| 42 | Revival Wedding Barn | Cass | 200 | Transient non-community | Groundwater |
| 43 | Porter Baptist Church | Cass | 200 | Transient non-community | Groundwater |
| 44 | Swiss Valley Ski and Snowboard Area | Cass | 200 | Transient non-community | Groundwater |
| 45 | Four Lakes Country Club | Cass | 200 | Transient non-community | Groundwater |
| 46 | Lakeside Campground | Cass | 200 | Transient non-community | Groundwater |
| 47 | Edwardsburg Crossing-Biggby | Cass | 200 | Transient non-community | Groundwater |
| 48 | Stacy'S Food & Spirits | Cass | 175 | Transient non-community | Groundwater |
| 49 | Lyons Industries Inc. | Cass | 155 | Non-transient non-community | Groundwater |
| 50 | D Bar and Burger | Cass | 150 | Transient non-community | Groundwater |
All other water systems in Cass County (85)
The remaining active systems filed under Cass County, largest first, with the population each reports serving.
- Hampshire Country Club150
- Cass County Conservation Club150
- Volinia Baptist Church150
- Community Church of Edwardsburg150
- Timberline Hospitality Holdings150
- Lindys Restaurant145
- First Baptist Church - Newberg130
- Hope of Edwardsburg120
- Jehovah'S Witnesses120
- Hope of Edwardsburg Well 2120
- Eq United115
- Rise-N-Shine Cafe114
- Shady Shores Resort112
- Zimmy'S Tavern106
- Michigan Die Casting103
- George'S Bar and Grill102
- Tri Star Molding100
- Apostolic Lighthouse100
- First Church of God - Niles100
- Divine Dough100
- Brookside Learning Center100
- Mega Liquor & Smoke #104100
- Happy Jake'S100
- Edwardsburg Fitness Company100
- Fat Cams at Garver Lake94
- Linden Mobile Home Park92
- Wakey Jakes90
- White Pines Mobile Home Park90
- Volinia Outcomes School80
- Arnie'S Drive in80
- Around the Corner Cafe80
- Bethel Tabernacle75
- Camp Friedenswald-Lakeview75
- Old Tavern Inn75
- The Friendly75
- Indian Lake Hills Golf Course75
- Colony Bay Condominiums75
- Lifestyle Nutrition75
- Lightning Quick Gas & Go #1075
- Rogers Resort, Inc.75
- Mantke'S Mini Mart75
- Edwardsburg Educational Center (Eec)75
- Indian Lake Pub75
- Sumnerville Bible Baptist Church70
- Glenwood Seventh Day Adventist Church70
- C & M Mobile Home Court70
- Edwardsburg Seventh Day Adventist Church70
- Rockys Hideaway Campground LLC61
- Mason Baptist Church60
- Bt'S Pub Inc..60
- Coulter'S Chapel Church of God 260
- Coulter'S Chapel Church of God 160
- Robert Hull Camp 14-000660
- Bartley Camp 14-002559
- Francoy'S Resort56
- Country View Mobile Home Community55
- The Rock at Big Fish Lake50
- Diamond Cove Missionary Church50
- Barn Swallow Apartments50
- Mercury Displacement Industries50
- Ami Marathon50
- Corey Church of the Nazarene50
- Rosco'S Pizza50
- Wakelee Bible Church50
- Pigs-N-Pizza50
- Autumn Hills50
- Mercury Displacement Ind - Warehouse42
- Wolverine Mutual Insurance41
- The Wild Patch30
- Ontwa Baptist Church30
- Vfw Post 228430
- Rocky'S Hideaway30
- Dowagiac Conservation Club30
- Hibshman Screw Machine30
- Eagle Lake Condominiums26
- Boot Hill Ranch Campground25
- Spirit Springs Campground 125
- Russ Forest= R-125
- Castle Inn & Suites of Dowagiac25
- Judge Convenience25
- Heritage Southwest Isd25
- Arthur Dodd Park25
- Owens Landing25
- Speed Mart Shell25
- Lawless Park25
Cass County water systems: frequently asked questions
How many public water systems are in Cass County, Michigan?
EPA's SDWIS records file 135 active public water systems under Cass County, Michigan: 16 community systems (12%), 15 non-transient non-community systems (11%) and 104 transient non-community systems (77%).
Who supplies drinking water in Cass County, MI?
The largest community water systems filed under Cass County are Dowagiac (6,350 people served), Cassopolis (1,815 people served) and Cass County Water System (1,350 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 Cass County's drinking water come from groundwater or surface water?
Of the 135 active public water systems in Cass County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Dowagiac, uses groundwater.
Where can I find a water quality report for Cass 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. 16 community systems are filed under Cass 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 Cass 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
- All Michigan public water systems· 10,599 active
- Mecosta County· 152 systems
- Calhoun County· 141 systems
- Leelanau County· 137 systems
- Newaygo County· 137 systems
- Chippewa County· 134 systems
- Clare County· 130 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
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 Cass County, Michigan”, https://aquacensus.com/water-systems/michigan/cass (data as of October 1, 2026).