Jay County, Indiana — public water systems
At a glance
30 active public water systems are filed under Jay County, Indiana in EPA's SDWIS records, together reporting 13,183 people served. The largest is Portland Municipal Water Plant, which reports serving 6,209 people. 4 are community water systems serving people where they live; the other 26 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
30
Population served
13.2K
Community systems
4
Groundwater share
100%
How does Jay County compare with other Indiana counties?
Jay County has the 44th-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 13,183 people served in total, the 76th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 439 people, well 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 Jay County's drinking water come from?
By primary water source, Jay County's active systems draw on groundwater (30, 100%). 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, Portland Municipal Water Plant, draws primarily on groundwater.
What kinds of water systems operate in Jay County?
Jay County's active systems break down as 4 community systems (13%), 11 non-transient non-community systems (37%) and 15 transient non-community systems (50%). 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 (83%) and local government (17%).
Water systems in Jay County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Portland Municipal Water Plant | Jay | 6,209 | Community | Groundwater |
| 2 | Dunkirk Water Department | Jay | 2,305 | Community | Groundwater |
| 3 | Redkey Water Plant | Jay | 1,323 | Community | Groundwater |
| 4 | Pennville Water Company | Jay | 706 | Community | Groundwater |
| 5 | Holy Trinity Church | Jay | 400 | Transient non-community | Groundwater |
| 6 | Bloomfield Elementary School | Jay | 300 | Non-transient non-community | Groundwater |
| 7 | Fellowship Baptist Church | Jay | 294 | Non-transient non-community | Groundwater |
| 8 | Paradise Pointe Campground (West Well) | Jay | 140 | Transient non-community | Groundwater |
| 9 | Paradise Pointe Campground (East Well) | Jay | 140 | Transient non-community | Groundwater |
| 10 | Portland Forge | Jay | 137 | Non-transient non-community | Groundwater |
| 11 | Premier Ethanol Dba Poet Biorefining | Jay | 130 | Non-transient non-community | Groundwater |
| 12 | Pak A Sak #85 | Jay | 101 | Transient non-community | Groundwater |
| 13 | Union Chapel Church | Jay | 100 | Transient non-community | Groundwater |
| 14 | Bryant Wesleyan Church | Jay | 100 | Transient non-community | Groundwater |
| 15 | New Beginnings Holiness Church | Jay | 99 | Transient non-community | Groundwater |
| 16 | The Church at Westchester | Jay | 84 | Transient non-community | Groundwater |
| 17 | The Waters of Dunkirk | Jay | 75 | Non-transient non-community | Groundwater |
| 18 | Hoosier Pride Farms, LLC-Well #4 | Jay | 70 | Non-transient non-community | Groundwater |
| 19 | J Star Farms | Jay | 60 | Non-transient non-community | Groundwater |
| 20 | Jinnys Cafe | Jay | 55 | Transient non-community | Groundwater |
| 21 | Fairview Umc/Praises & Pathways Daycare | Jay | 50 | Non-transient non-community | Groundwater |
| 22 | Jay Creek Amish School | Jay | 50 | Transient non-community | Groundwater |
| 23 | Limberlost Amish School | Jay | 45 | Transient non-community | Groundwater |
| 24 | Bearcreek Parochial Amish School | Jay | 35 | Transient non-community | Groundwater |
| 25 | Jay Co. Scout Facility Inc.. | Jay | 35 | Transient non-community | Groundwater |
| 26 | Minnich - Limberlost | Jay | 30 | Non-transient non-community | Groundwater |
| 27 | Minnich - Ample | Jay | 30 | Non-transient non-community | Groundwater |
| 28 | Minnich - Midland | Jay | 30 | Non-transient non-community | Groundwater |
| 29 | Bryant Park | Jay | 25 | Transient non-community | Groundwater |
| 30 | Loblolly Church Amish School | Jay | 25 | Transient non-community | Groundwater |
Jay County water systems: frequently asked questions
How many public water systems are in Jay County, Indiana?
EPA's SDWIS records file 30 active public water systems under Jay County, Indiana: 4 community systems (13%), 11 non-transient non-community systems (37%) and 15 transient non-community systems (50%).
Who supplies drinking water in Jay County, IN?
The largest community water systems filed under Jay County are Portland Municipal Water Plant (6,209 people served), Dunkirk Water Department (2,305 people served) and Redkey Water Plant (1,323 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 Jay County's drinking water come from groundwater or surface water?
Of the 30 active public water systems in Jay County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Portland Municipal Water Plant, uses groundwater.
Where can I find a water quality report for Jay 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. 4 community systems are filed under Jay 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 Jay 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
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 Jay County, Indiana”, https://aquacensus.com/water-systems/indiana/jay (data as of October 1, 2026).