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Knox County, Indiana — public water systems

At a glance

18 active public water systems are filed under Knox County, Indiana in EPA's SDWIS records, together reporting 32,275 people served. The largest is Vincennes Water Department, which reports serving 18,701 people. 11 are community water systems serving people where they live; the other 7 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

18

Population served

32.3K

Community systems

11

Groundwater share

100%

How does Knox County compare with other Indiana counties?

Knox County has the 52nd-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 32,275 people served in total, the 36th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 1,793 people, about 23% 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 Knox County's drinking water come from?

By primary water source, Knox County's active systems draw on groundwater (16, 89%) and purchased groundwater (2, 11%). 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, Vincennes Water Department, draws primarily on groundwater.

What kinds of water systems operate in Knox County?

Knox County's active systems break down as 11 community systems (61%) and 7 transient non-community systems (39%). 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 (56%) and private (44%).

Water systems in Knox County

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Active public water systems in Knox County, Indiana
#Water systemCountyPopulation servedTypeSource
1Vincennes Water DepartmentKnox18,701CommunityGroundwater
2Bicknell Municipal UtilitiesKnox4,064CommunityGroundwater
3Knox County Water, Inc..Knox3,525CommunityPurchased groundwater
4Freelandville Water AssociationKnox1,175CommunityGroundwater
5Oaktown Water WorksKnox832CommunityGroundwater
6Monroe City Water UtilitiesKnox813CommunityGroundwater
7Pick N PumpKnox506Transient non-communityGroundwater
8Edwardsport Water UtilityKnox488CommunityGroundwater
9Wheatland Water WorksKnox474CommunityGroundwater
10Bruceville Water UtilityKnox449CommunityPurchased groundwater
11Sandborn Water DepartmentKnox449CommunityGroundwater
12Decker Water WorksKnox273CommunityGroundwater
13St. Francis Xavier ParishKnox200Transient non-communityGroundwater
14Melon Acres HaciendaKnox146Transient non-communityGroundwater
15St. Peters Lutheran ChurchKnox88Transient non-communityGroundwater
16Dolls MotelKnox36Transient non-communityGroundwater
17Mckinley OrchardKnox31Transient non-communityGroundwater
18Fellowship Baptist ChurchKnox25Transient non-communityGroundwater

Knox County water systems: frequently asked questions

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

EPA's SDWIS records file 18 active public water systems under Knox County, Indiana: 11 community systems (61%) and 7 transient non-community systems (39%).

Who supplies drinking water in Knox County, IN?

The largest community water systems filed under Knox County are Vincennes Water Department (18,701 people served), Bicknell Municipal Utilities (4,064 people served) and Knox County Water, Inc.. (3,525 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 Knox County's drinking water come from groundwater or surface water?

Of the 18 active public water systems in Knox County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Vincennes Water Department, uses groundwater.

Where can I find a water quality report for Knox 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. 11 community systems are filed under Knox 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 Knox 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 Knox County, Indiana”, https://aquacensus.com/water-systems/indiana/knox (data as of October 1, 2026).