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Jennings County, Indiana — public water systems

At a glance

10 active public water systems are filed under Jennings County, Indiana in EPA's SDWIS records, together reporting 25,878 people served. The largest is Jennings Water, Inc.., which reports serving 8,370 people. 9 are community water systems serving people where they live; the other 1 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

10

Population served

25.9K

Community systems

9

Groundwater share

60%

How does Jennings County compare with other Indiana counties?

Jennings County has the 70th-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 25,878 people served in total, the 49th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 2,588 people, about 78% above 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 Jennings County's drinking water come from?

By primary water source, Jennings County's active systems draw on purchased groundwater (4, 40%), purchased surface water (3, 30%), groundwater (2, 20%) and surface water (1, 10%). Overall, 60% rely mainly on groundwater (including purchased groundwater) and 40% on surface water, compared with 97% and 2.8% across Indiana. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. The county's largest system, Jennings Water, Inc.., draws primarily on groundwater.

What kinds of water systems operate in Jennings County?

Jennings County's active systems break down as 9 community systems (90%) and 1 transient non-community systems (10%). 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 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 local government (50%), private (40%) and federal government (10%).

Water systems in Jennings County

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Active public water systems in Jennings County, Indiana
#Water systemCountyPopulation servedTypeSource
1Jennings Water, Inc..Jennings8,370CommunityGroundwater
2North Vernon Water DepartmentJennings6,500CommunitySurface water
3Dupont Water CompanyJennings3,865CommunityPurchased groundwater
4Jennings Northwest Regional UtilityJennings2,955CommunityPurchased groundwater
5Hayden Water AssociationJennings2,395CommunityPurchased groundwater
6Burnt Pines Water AssociationJennings900CommunityPurchased surface water
7Vernon Water DepartmentJennings538CommunityPurchased surface water
8Hickory Manor Mobile Home ParkJennings250CommunityPurchased surface water
9Muscatatuck Christian RanchJennings65Transient non-communityGroundwater
10Muscatatuck Urban Training CenterJennings40CommunityPurchased groundwater

Jennings County water systems: frequently asked questions

How many public water systems are in Jennings County, Indiana?

EPA's SDWIS records file 10 active public water systems under Jennings County, Indiana: 9 community systems (90%) and 1 transient non-community systems (10%).

Who supplies drinking water in Jennings County, IN?

The largest community water systems filed under Jennings County are Jennings Water, Inc.. (8,370 people served), North Vernon Water Department (6,500 people served) and Dupont Water Company (3,865 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 Jennings County's drinking water come from groundwater or surface water?

Of the 10 active public water systems in Jennings County, 60% draw mainly on groundwater and 40% on surface water, counting purchased supplies. The largest system, Jennings Water, Inc.., uses groundwater.

Where can I find a water quality report for Jennings 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. 9 community systems are filed under Jennings 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 Jennings 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 Jennings County, Indiana”, https://aquacensus.com/water-systems/indiana/jennings (data as of October 1, 2026).