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Monroe County, Indiana — public water systems

At a glance

11 active public water systems are filed under Monroe County, Indiana in EPA's SDWIS records, together reporting 126,334 people served. The largest is City of Bloomington Utilities, which reports serving 83,000 people. 10 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

11

Population served

126.3K

Community systems

10

Groundwater share

9.1%

How does Monroe County compare with other Indiana counties?

Monroe County has the 66th-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 126,334 people served in total, the 11th-largest county figure in the state and 2.2% of the statewide total. The average system here reports serving 11,485 people, about 7.9 times 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 Monroe County's drinking water come from?

By primary water source, Monroe County's active systems draw on purchased surface water (8, 73%), surface water (2, 18%) and groundwater (1, 9.1%). Overall, 9.1% rely mainly on groundwater (including purchased groundwater) and 91% on surface water, compared with 97% and 2.8% across Indiana. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, City of Bloomington Utilities, draws primarily on surface water.

What kinds of water systems operate in Monroe County?

Monroe County's active systems break down as 10 community systems (91%) and 1 transient non-community systems (9.1%). 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 (55%) and private (45%).

Water systems in Monroe County

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Active public water systems in Monroe County, Indiana
#Water systemCountyPopulation servedTypeSource
1City of Bloomington UtilitiesMonroe83,000CommunitySurface water
2Ellettsville Water WorksMonroe14,500CommunityPurchased surface water
3Southern Monroe Water AuthorityMonroe8,877CommunityPurchased surface water
4Van Buren Water, Inc..Monroe6,670CommunityPurchased surface water
5B&B Water Project, Inc..Monroe4,695CommunityPurchased surface water
6Washington Twp Water AuthorityMonroe3,825CommunityPurchased surface water
7East Monroe Water CorporationMonroe3,648CommunityPurchased surface water
8Rhs Water CorporationMonroe870CommunityPurchased surface water
9Shady Side Water CorporationMonroe95CommunityPurchased surface water
10Salt Creek Services, Inc..Monroe90CommunitySurface water
11Monroe Causeway CampgroundMonroe64Transient non-communityGroundwater

Monroe County water systems: frequently asked questions

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

EPA's SDWIS records file 11 active public water systems under Monroe County, Indiana: 10 community systems (91%) and 1 transient non-community systems (9.1%).

Who supplies drinking water in Monroe County, IN?

The largest community water systems filed under Monroe County are City of Bloomington Utilities (83,000 people served), Ellettsville Water Works (14,500 people served) and Southern Monroe Water Authority (8,877 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 Monroe County's drinking water come from groundwater or surface water?

Of the 11 active public water systems in Monroe County, 9.1% draw mainly on groundwater and 91% on surface water, counting purchased supplies. The largest system, City of Bloomington Utilities, uses surface water.

Where can I find a water quality report for Monroe 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 Monroe 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 Monroe 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 Monroe County, Indiana”, https://aquacensus.com/water-systems/indiana/monroe (data as of October 1, 2026).