St. Joseph County, Indiana — public water systems
At a glance
221 active public water systems are filed under St. Joseph County, Indiana in EPA's SDWIS records, together reporting 218,558 people served. The largest is South Bend Water Works, which reports serving 115,000 people. 16 are community water systems serving people where they live; the other 205 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
221
Population served
218.6K
Community systems
16
Groundwater share
100%
How does St. Joseph County compare with other Indiana counties?
St. Joseph County has the 3rd-most active public water systems among the 109 counties listed for active Indiana systems in EPA records; among the 92 with 3 or more systems, the median has 26. Its systems report 218,558 people served in total, the 5th-largest county figure in the state and 3.8% of the statewide total. The average system here reports serving 989 people, about 32% below the Indiana average of 1,456. 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 St. Joseph County's drinking water come from?
By primary water source, St. Joseph County's active systems draw on groundwater (220, 100%) and purchased groundwater (1, 0.5%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 97% and 2.8% across Indiana. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, South Bend Water Works, draws primarily on groundwater.
What kinds of water systems operate in St. Joseph County?
St. Joseph County's active systems break down as 16 community systems (7.2%), 36 non-transient non-community systems (16%) and 169 transient non-community systems (76%). 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 (90%), local government (9.5%) and federal government (0.5%).
The 50 largest water systems in St. Joseph County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | South Bend Water Works | St. Joseph | 115,000 | Community | Groundwater |
| 2 | Mishawaka Utilities | St. Joseph | 49,675 | Community | Groundwater |
| 3 | University of Notre Dame | St. Joseph | 7,400 | Community | Groundwater |
| 4 | Walkerton Light & Water | St. Joseph | 2,262 | Community | Groundwater |
| 5 | Sisters of Holy Cross-St. Marys College | St. Joseph | 2,111 | Community | Groundwater |
| 6 | North Liberty Water Works | St. Joseph | 1,896 | Community | Groundwater |
| 7 | New Carlisle Water Works | St. Joseph | 1,861 | Community | Groundwater |
| 8 | The Vineyard Church | St. Joseph | 1,473 | Transient non-community | Groundwater |
| 9 | Mcdonalds Restaurant | St. Joseph | 982 | Transient non-community | Groundwater |
| 10 | Holy Family Church | St. Joseph | 900 | Transient non-community | Groundwater |
| 11 | Seven-Eleven #32578 | St. Joseph | 900 | Transient non-community | Groundwater |
| 12 | Granger St. (Martins Supermrk & Oscos) | St. Joseph | 880 | Non-transient non-community | Groundwater |
| 13 | Discovery Middle School | St. Joseph | 848 | Non-transient non-community | Groundwater |
| 14 | Gkpp Inc.. | St. Joseph | 818 | Transient non-community | Groundwater |
| 15 | Jsb Petro Inc. | St. Joseph | 755 | Transient non-community | Groundwater |
| 16 | Lakeville Water Department | St. Joseph | 750 | Community | Groundwater |
| 17 | Trinity Evangelical Church | St. Joseph | 712 | Transient non-community | Groundwater |
| 18 | Marsh Village Pantry #5637 | St. Joseph | 707 | Transient non-community | Groundwater |
| 19 | Grissom Middle School | St. Joseph | 687 | Non-transient non-community | Groundwater |
| 20 | Laville Jr. & Sr. High School | St. Joseph | 675 | Non-transient non-community | Groundwater |
| 21 | Horizon Elementary School | St. Joseph | 671 | Non-transient non-community | Groundwater |
| 22 | Mishawaka-Penn-Harris Public Library | St. Joseph | 663 | Transient non-community | Groundwater |
| 23 | Aqua Indiana - Wedgewood Park Water Util | St. Joseph | 645 | Community | Purchased groundwater |
| 24 | Northpoint Elementary School | St. Joseph | 612 | Non-transient non-community | Groundwater |
| 25 | North Liberty Church of Christ | St. Joseph | 574 | Non-transient non-community | Groundwater |
| 26 | New Life Church | St. Joseph | 555 | Transient non-community | Groundwater |
| 27 | Oc Center - Subway | St. Joseph | 520 | Transient non-community | Groundwater |
| 28 | Prairie Vista Elementary School | St. Joseph | 510 | Non-transient non-community | Groundwater |
| 29 | Elm Road School | St. Joseph | 488 | Non-transient non-community | Groundwater |
| 30 | Meadows Edge Elementary School | St. Joseph | 426 | Non-transient non-community | Groundwater |
| 31 | Christ the King Lutheran Church | St. Joseph | 424 | Transient non-community | Groundwater |
| 32 | Elkhart Rv Resort, LLC | St. Joseph | 410 | Transient non-community | Groundwater |
| 33 | Clearwater Village Mobile Home Park | St. Joseph | 400 | Community | Groundwater |
| 34 | Mary Frank Elementary School | St. Joseph | 393 | Non-transient non-community | Groundwater |
| 35 | Hamilton Grove | St. Joseph | 384 | Community | Groundwater |
| 36 | Kingdom Hall of the Jehovahs Witnesses | St. Joseph | 375 | Transient non-community | Groundwater |
| 37 | Walgreens Drugstore #6965 | St. Joseph | 370 | Transient non-community | Groundwater |
| 38 | Great Lakes Auto Auction | St. Joseph | 365 | Transient non-community | Groundwater |
| 39 | St. Patrick Park | St. Joseph | 360 | Transient non-community | Groundwater |
| 40 | Trevi | St. Joseph | 356 | Transient non-community | Groundwater |
| 41 | Community Gospel Church | St. Joseph | 353 | Transient non-community | Groundwater |
| 42 | Knollwood Country Club | St. Joseph | 340 | Non-transient non-community | Groundwater |
| 43 | Holy Family School | St. Joseph | 320 | Non-transient non-community | Groundwater |
| 44 | Bell-Mart Amoco - Granger | St. Joseph | 306 | Transient non-community | Groundwater |
| 45 | Granger Christian School | St. Joseph | 280 | Non-transient non-community | Groundwater |
| 46 | South Bend Country Club | St. Joseph | 275 | Transient non-community | Groundwater |
| 47 | Michiana Plaza | St. Joseph | 270 | Transient non-community | Groundwater |
| 48 | Dairy Queen - Granger | St. Joseph | 265 | Transient non-community | Groundwater |
| 49 | Kryder-Harr Veterinary Clinic | St. Joseph | 264 | Transient non-community | Groundwater |
| 50 | Ireland Road Church of God | St. Joseph | 263 | Transient non-community | Groundwater |
All other water systems in St. Joseph County (171)
The remaining active systems filed under St. Joseph County, largest first, with the population each reports serving.
- Grace Brethren Church254
- Walgreens Store #11544 - Granger240
- The Nfluence Network, Inc..230
- Coalbush Methodist Church225
- Goodwill Industries of Michiana, Inc..221
- Mr. Gs Restaurant & Lounge220
- Three Eggs Inc.. Dba Copper Creek Cafe220
- Capital Cove/M & L Financial Solutions213
- Bobs 19th Hole212
- Country Cupboard210
- Universal Forest Products - Mill210
- Cvs Pharmacy206
- Michiana Raceway Park205
- Granger Missionary Church203
- Elbel Golf Course202
- Hillcrest Baptist Church200
- Chet Waggoner Little League175
- Goddard School175
- Ujl Property in Dba Bittersweet Terrace165
- Unifrax Corporation Dba Alkegen165
- Provident Ministries162
- Dollar General #03724 - Granger160
- 933 One Stop154
- Sm Capital150
- Dollar Tree - Granger150
- St. Peter and Paul Hall150
- Bowlers Country Club150
- Northway Church of Christ150
- Sisters-St. Francis Perpetual Adoration145
- Lydick Methodist Church140
- Northwest United Methodist Church, Inc..138
- Culvers138
- Sacred Heart of Jesus Christ Catholic Ch127
- Madison Elementary School127
- Yesterdays Food Spirits & Merriment126
- Starz Academy #1, Inc..125
- Dollar General #11353116
- Topp Property Management LLC115
- Granger Station Lot 4115
- Capri Restaurant115
- Saint Joseph Regional Medical Center112
- Wings Etc.110
- Sunny Haven Recreation Park106
- Granger Commons105
- Bendix Woods Park105
- Laidig Inc..104
- Spicer Lake County Park102
- The 4 of Us Rock Cafe Dba Fire Rock Cafe100
- Mini-Mountain Campground-East100
- Royal Excursions100
- Granger Mills100
- St. Pauls Evangelical Lutheran Church100
- Morris Animal Hospital97
- Whispering Pines Golf Course97
- Peace Lutheran Church96
- Granger Dental95
- Pitt Stop/Mancinos95
- Ray Bird Ministries (Gymnasium)95
- Fit Stop Granger95
- Kingdom Hall95
- Kern Road Mennonite Church95
- Pejzas Lydick Tavern95
- Family Broadcasting Corporation95
- Capital Plaza LLC92
- Michiana Chinese Christian Church91
- Spi Industries - Kando Properties LLC90
- Ray Bird Ministries - Lodge90
- New Carlisle Wesleyan Church90
- St. Stanislaus Church90
- St. Stanislaus Church Hall90
- Granger Plaza90
- Chicos Friendly Grill Restaurant85
- First General Baptist Church82
- County Line Brethren Church81
- Grace Brethren Church80
- South Bend Francis Club80
- Navistar Proving Grounds80
- Madison Old Brethren Meeting House80
- Hickory Lane Mobile Home Park80
- Michiana Community Church of God77
- Oc Bowling Lanes77
- Big C Lumber74
- Oak Grove Missionary Church74
- Shepherds Heart Fellowship73
- St. Peter and Paul Church71
- Faith Christian Chapel71
- Granger Professional Complex70
- Journey Church70
- Gates of Granger67
- Autozone #453266
- Michiana Covenant Church66
- Granger Investments65
- Dollar General #18427 - South Bend65
- Everwise Credit Union Granger Center63
- Bittersweet Medical Association62
- Bittersweet Road Family Dentists62
- Osceola Dental Care61
- Ray Bird Ministries - Bathhouse60
- Holston Rentals60
- Coffman Office Building60
- Granger Family Dentistry59
- Timberland Bible Church56
- Oak Tree Community Church56
- Prince of Peace Church55
- First English Lutheran55
- West Winds55
- Communitywide Federal Credit Union53
- American Legion Post 30853
- S.B.J.A.T.C.53
- Olive Branch United Brethren Church52
- Good Shepherd United Methodist Church51
- Hoosier Racing Tire (Office Building)50
- Cdi - School50
- Community Wide Federal Credit Union50
- Oak Grove Amish School50
- Pine Creek Church50
- Rieth-Riley Construction Co, Inc..50
- Wyatt Beef and Brew50
- Bethlehem Missionary Baptist Church50
- Notre Dame Federal Credit Union49
- Metalstamp, Inc..49
- Klink Trucking Inc..49
- Valley Screen Process Company49
- Starz Academy #1, Inc.-Little Starz48
- Northern Indiana Surgery Center47
- Shamrock Hills Rv45
- Zolman Tire - Granger45
- Sunny Haven Recreation Campground45
- The Sweet Shop45
- Indiana Invaders Soccer Complex45
- Camp Millhouse44
- Sumption Prairie United Methodist Church43
- Relax Inn43
- Foegley Landscape, Inc.. Well #243
- Maple Ridge Campground/House42
- Maple Ridge Campground - Seasonal Well42
- United States Postal Service (Granger)42
- Veldmans Auto Parts, Inc..40
- Second Baptist Church40
- Stellas Crumstown Tavern40
- Mini Mountain Campground - North40
- Advance Dental40
- The Dental Center39
- Buckeye Terminals, LLC38
- Chain O Lakes Conservation Club35
- Midwest Eye Consultants32
- Hannah & Friends32
- Royal Inn32
- Cp Industries32
- Vfw Post #195431
- Ufp Granger, LLC Treating Plant30
- Mini Mountain Campground-South30
- Logan Community Resources30
- New Beginnings Comm. Fellowship Church30
- Southside Christian Church30
- Stres Core Inc..28
- Kids Kove Daycare28
- Fishers Bbq, Inc.27
- T Force Freight27
- Journeys Autism Center26
- Macallister Machinery26
- Ninja Golf Village25
- Ohana Heritage Foundation Dba A Rosie Pl25
- Dollar General - South Bend25
- Sunset Village & Rv Park25
- Dollar General #21026 - Quince Rd25
- American Pancake House25
- The Hills at St. Joe Farm25
- Mirror Door Plaza25
- Kenrose Motel25
- Westwood Motel25
St. Joseph County water systems: frequently asked questions
How many public water systems are in St. Joseph County, Indiana?
EPA's SDWIS records file 221 active public water systems under St. Joseph County, Indiana: 16 community systems (7.2%), 36 non-transient non-community systems (16%) and 169 transient non-community systems (76%).
Who supplies drinking water in St. Joseph County, IN?
The largest community water systems filed under St. Joseph County are South Bend Water Works (115,000 people served), Mishawaka Utilities (49,675 people served) and University of Notre Dame (7,400 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 St. Joseph County's drinking water come from groundwater or surface water?
Of the 221 active public water systems in St. Joseph County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, South Bend Water Works, uses groundwater.
Where can I find a water quality report for St. Joseph 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 St. Joseph 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 St. Joseph 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 Indiana water systems
- All Indiana public water systems· 3,969 active
- Kosciusko County· 291 systems
- Elkhart County· 284 systems
- LaGrange County· 211 systems
- Steuben County· 145 systems
- LaPorte County· 126 systems
- Lake County· 110 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 St. Joseph County, Indiana”, https://aquacensus.com/water-systems/indiana/st-joseph (data as of October 1, 2026).