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Sullivan County, Indiana — public water systems

At a glance

13 active public water systems are filed under Sullivan County, Indiana in EPA's SDWIS records, together reporting 19,464 people served. The largest is Indiana American Water - Sullivan, which reports serving 6,598 people. 10 are community water systems serving people where they live; the other 3 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

13

Population served

19.5K

Community systems

10

Groundwater share

100%

How does Sullivan County compare with other Indiana counties?

Sullivan County has the 61st-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 19,464 people served in total, the 63rd-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 1,497 people, roughly in line with 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 Sullivan County's drinking water come from?

By primary water source, Sullivan County's active systems draw on groundwater (8, 62%) and purchased groundwater (5, 38%). 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, Indiana American Water - Sullivan, draws primarily on groundwater.

What kinds of water systems operate in Sullivan County?

Sullivan County's active systems break down as 10 community systems (77%), 1 non-transient non-community systems (7.7%) and 2 transient non-community systems (15%). 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 local government (62%) and private (38%).

Water systems in Sullivan County

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Active public water systems in Sullivan County, Indiana
#Water systemCountyPopulation servedTypeSource
1Indiana American Water - SullivanSullivan6,598CommunityGroundwater
2Shelburn Water UtilitiesSullivan2,500CommunityGroundwater
3Indiana American Water - FarmersburgSullivan2,095CommunityPurchased groundwater
4Paxton Water CorporationSullivan2,013CommunityGroundwater
5Dugger UtilitiesSullivan1,935CommunityPurchased groundwater
6Carlisle Water DepartmentSullivan1,152CommunityGroundwater
7Hymera Water WorksSullivan1,015CommunityPurchased groundwater
8Pleasantville Water CompanySullivan924CommunityPurchased groundwater
9Wilfred Water CorporationSullivan400CommunityPurchased groundwater
10Indiana American Water - MeromSullivan380CommunityGroundwater
11Merom Generating StationSullivan250Non-transient non-communityGroundwater
12Shaker Prairie ChristianSullivan131Transient non-communityGroundwater
13Cardinal Produce HousingSullivan71Transient non-communityGroundwater

Sullivan County water systems: frequently asked questions

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

EPA's SDWIS records file 13 active public water systems under Sullivan County, Indiana: 10 community systems (77%), 1 non-transient non-community systems (7.7%) and 2 transient non-community systems (15%).

Who supplies drinking water in Sullivan County, IN?

The largest community water systems filed under Sullivan County are Indiana American Water - Sullivan (6,598 people served), Shelburn Water Utilities (2,500 people served) and Indiana American Water - Farmersburg (2,095 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 Sullivan County's drinking water come from groundwater or surface water?

Of the 13 active public water systems in Sullivan County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Indiana American Water - Sullivan, uses groundwater.

Where can I find a water quality report for Sullivan 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. 10 community systems are filed under Sullivan 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 Sullivan 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 Sullivan County, Indiana”, https://aquacensus.com/water-systems/indiana/sullivan (data as of October 1, 2026).