Shiawassee County, Michigan — public water systems
At a glance
126 active public water systems are filed under Shiawassee County, Michigan in EPA's SDWIS records, together reporting 42,865 people served. The largest is City of Owosso, which reports serving 16,353 people. 18 are community water systems serving people where they live; the other 108 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
126
Population served
42.9K
Community systems
18
Groundwater share
99.2%
How does Shiawassee County compare with other Michigan counties?
Shiawassee County has the 29th-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 42,865 people served in total, the 33rd-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 340 people, about 60% 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 Shiawassee County's drinking water come from?
By primary water source, Shiawassee County's active systems draw on groundwater (124, 98%), purchased groundwater (1, 0.8%) and surface water (1, 0.8%). Overall, 99% rely mainly on groundwater (including purchased groundwater) and 0.8% 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, City of Owosso, draws primarily on surface water.
What kinds of water systems operate in Shiawassee County?
Shiawassee County's active systems break down as 18 community systems (14%), 21 non-transient non-community systems (17%) and 87 transient non-community systems (69%). 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 (5.6%) and state government (0.8%).
The 50 largest water systems in Shiawassee County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Owosso, City of | Shiawassee | 16,353 | Community | Surface water |
| 2 | Durand, City of | Shiawassee | 3,446 | Community | Groundwater |
| 3 | Perry, City of | Shiawassee | 2,065 | Community | Groundwater |
| 4 | Corunna, City of | Shiawassee | 2,028 | Community | Purchased groundwater |
| 5 | Mdot - Woodbury Rest Area | Shiawassee | 1,200 | Transient non-community | Groundwater |
| 6 | Leisure Lake Snack Bar | Shiawassee | 1,000 | Transient non-community | Groundwater |
| 7 | Bancroft, Village of | Shiawassee | 616 | Community | Groundwater |
| 8 | New Lothrop, Village of | Shiawassee | 610 | Community | Groundwater |
| 9 | Byron, Village of | Shiawassee | 581 | Community | Groundwater |
| 10 | Laingsburg Elementary School | Shiawassee | 550 | Non-transient non-community | Groundwater |
| 11 | Laingsburg Middle School | Shiawassee | 550 | Non-transient non-community | Groundwater |
| 12 | Woods and Fields Communities East | Shiawassee | 528 | Community | Groundwater |
| 13 | Reed-Raymond Vfw Post #2272 | Shiawassee | 500 | Transient non-community | Groundwater |
| 14 | St. Mary'S Catholic Church (Hall) | Shiawassee | 500 | Transient non-community | Groundwater |
| 15 | St. Mary'S Catholic Church | Shiawassee | 500 | Transient non-community | Groundwater |
| 16 | Countryside Village | Shiawassee | 490 | Community | Groundwater |
| 17 | Leisure Lake Condo Assn. | Shiawassee | 425 | Transient non-community | Groundwater |
| 18 | Redeemer Lutheran Church-Owosso | Shiawassee | 412 | Transient non-community | Groundwater |
| 19 | Morrice Elementary | Shiawassee | 405 | Non-transient non-community | Groundwater |
| 20 | Gracepointe Wesleyan Church | Shiawassee | 400 | Transient non-community | Groundwater |
| 21 | Laingsburg High School | Shiawassee | 392 | Non-transient non-community | Groundwater |
| 22 | Morrice High School | Shiawassee | 300 | Non-transient non-community | Groundwater |
| 23 | Edgewood Gardens | Shiawassee | 300 | Transient non-community | Groundwater |
| 24 | Sresd College & Career Readiness Center | Shiawassee | 300 | Non-transient non-community | Groundwater |
| 25 | Eagles Cove | Shiawassee | 300 | Transient non-community | Groundwater |
| 26 | Shiawassee Harvest Ministries | Shiawassee | 300 | Transient non-community | Groundwater |
| 27 | Morrice Meadows | Shiawassee | 258 | Community | Groundwater |
| 28 | Northwoods Community | Shiawassee | 238 | Community | Groundwater |
| 29 | First Church of the Nazarene - Owosso | Shiawassee | 210 | Transient non-community | Groundwater |
| 30 | Sage Market | Shiawassee | 200 | Transient non-community | Groundwater |
| 31 | Campgrounds R Us | Shiawassee | 200 | Transient non-community | Groundwater |
| 32 | Riverwood Crossing Plaza | Shiawassee | 200 | Non-transient non-community | Groundwater |
| 33 | Big Boy Restaurant Affiliates, LLC | Shiawassee | 200 | Transient non-community | Groundwater |
| 34 | Riverwood Crossing Mall #1 | Shiawassee | 200 | Non-transient non-community | Groundwater |
| 35 | Graham Community Church Shaftsburg | Shiawassee | 200 | Transient non-community | Groundwater |
| 36 | Bj'S Fine Foods | Shiawassee | 200 | Transient non-community | Groundwater |
| 37 | Owosso Speedway | Shiawassee | 200 | Transient non-community | Groundwater |
| 38 | Durand Church of the Nazarene | Shiawassee | 188 | Transient non-community | Groundwater |
| 39 | Woods and Fields Communities West | Shiawassee | 185 | Community | Groundwater |
| 40 | Health Park Building 100 | Shiawassee | 150 | Transient non-community | Groundwater |
| 41 | First Church of God - Owosso | Shiawassee | 150 | Transient non-community | Groundwater |
| 42 | Health Park Building 300 | Shiawassee | 150 | Non-transient non-community | Groundwater |
| 43 | Ovid Medical Care | Shiawassee | 150 | Transient non-community | Groundwater |
| 44 | Los Tres Amigos | Shiawassee | 140 | Transient non-community | Groundwater |
| 45 | Crest Marine - Old | Shiawassee | 125 | Non-transient non-community | Groundwater |
| 46 | First Baptist Church of Laingsburg | Shiawassee | 120 | Non-transient non-community | Groundwater |
| 47 | Orchard Place Manor Apartments | Shiawassee | 120 | Community | Groundwater |
| 48 | Sresd Student Learning Center West | Shiawassee | 110 | Non-transient non-community | Groundwater |
| 49 | Hometown Childcare | Shiawassee | 100 | Non-transient non-community | Groundwater |
| 50 | Faith Comm Church - Perry | Shiawassee | 100 | Transient non-community | Groundwater |
All other water systems in Shiawassee County (76)
The remaining active systems filed under Shiawassee County, largest first, with the population each reports serving.
- Perry Family Practice Center100
- Morrice Senior Center100
- Crest Marine - New100
- Dollar General Morrice100
- Ppl Petroleum Lennon, LLC100
- Twilligers Tavern100
- Burton Corners Party Store, Inc..100
- Pfeifle Building100
- Dutch Hollow, Inc..100
- State Rd. Health Services100
- Country Manor87
- Laingsburg United Methodist80
- Crest Marine - Wood Shop80
- First Baptist Church of Corunna80
- Hoovers Corners80
- Durand Eagles75
- Antrim Baptist Church75
- Tanks Tavern75
- Quiet Cove Trailer Park70
- Gilead Baptist Academy & Ch65
- Easton Church of Christ60
- Lansing Buddhist60
- Pittsburg Family Healthcare60
- St. Isidores Catholic Church60
- Kooters in the Field55
- Sicily'S Pizza50
- Hidden Glen Apartments50
- Maisch Family Dentristy50
- Waste Management50
- Liuna Michgan50
- Holy Family Catholic Church50
- Community Evangelical Presbian50
- Midway Tavern50
- Applebee'S50
- Perry Church of the Nazarene50
- Bj'S Bar & Grill50
- Spring Vale Academy50
- Alan'S Park - Durand41
- Lifetime Metal Sales40
- Larkin Family Medicine35
- Looking Glass Terrace31
- Looking Glass Terraces Apts.31
- Sata Transportation Facility30
- Lunghamer Ford Perry30
- Glenbrier Golf Course, Inc..30
- Emery Pratt Co.30
- Culligan of Owosso30
- Owosso Graphic Arts30
- First Congreg. Church - Laingsburg25
- American Legion Post 24825
- Shiawassee County Fairground-Shower25
- Shiawassee Co Frgrd-Well 2,3&425
- Shiawassee Co Fairgrd-Office-125
- Crowe Properties25
- Shoreline Lake Condo Assoc.25
- Bates Scout Park25
- Pdp'S Pizzeria25
- Church of Jesus Christ of LDS-Owosso25
- Viron International, LLC25
- Laingsburg Primary Care25
- Country Ranch25
- Martha'S Quick Stop #2225
- Conservation Association25
- J & H Family Stores-Laingsburg Town Tub25
- Tammy'S Bakery & Cafe25
- Woodhull Twp. Park #125
- Woodhull Twp. Park #225
- Sent Out Community Church25
- Our Savior Lutheran Church-Perry25
- Hansen'S Quick Stop #1725
- Owosso Country Club25
- Chill 'N' Parrot25
- Two Dog Tavern25
- Durand Global Methodist Church25
- Newport Family Restaurant25
- Sweets & Treats25
Shiawassee County water systems: frequently asked questions
How many public water systems are in Shiawassee County, Michigan?
EPA's SDWIS records file 126 active public water systems under Shiawassee County, Michigan: 18 community systems (14%), 21 non-transient non-community systems (17%) and 87 transient non-community systems (69%).
Who supplies drinking water in Shiawassee County, MI?
The largest community water systems filed under Shiawassee County are City of Owosso (16,353 people served), City of Durand (3,446 people served) and City of Perry (2,065 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 Shiawassee County's drinking water come from groundwater or surface water?
Of the 126 active public water systems in Shiawassee County, 99% draw mainly on groundwater and 0.8% on surface water, counting purchased supplies. The largest system, City of Owosso, uses surface water.
Where can I find a water quality report for Shiawassee 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. 18 community systems are filed under Shiawassee 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 Shiawassee 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
- Cass County· 135 systems
- Chippewa County· 134 systems
- Clare County· 130 systems
- Oceana County· 129 systems
- St. Joseph County· 125 systems
- Ionia County· 123 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 Shiawassee County, Michigan”, https://aquacensus.com/water-systems/michigan/shiawassee (data as of October 1, 2026).