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Franklin County, Indiana — public water systems

At a glance

11 active public water systems are filed under Franklin County, Indiana in EPA's SDWIS records, together reporting 13,594 people served. The largest is Franklin County Water Association, which reports serving 8,200 people. 5 are community water systems serving people where they live; the other 6 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

13.6K

Community systems

5

Groundwater share

90.9%

How does Franklin County compare with other Indiana counties?

Franklin County has the 64th-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 13,594 people served in total, the 75th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 1,236 people, about 15% 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 Franklin County's drinking water come from?

By primary water source, Franklin County's active systems draw on groundwater (10, 91%) and purchased surface water (1, 9.1%). Overall, 91% rely mainly on groundwater (including purchased groundwater) and 9.1% 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, Franklin County Water Association, draws primarily on groundwater.

What kinds of water systems operate in Franklin County?

Franklin County's active systems break down as 5 community systems (45%) and 6 transient non-community systems (55%). 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 private (64%) and local government (36%).

Water systems in Franklin County

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Active public water systems in Franklin County, Indiana
#Water systemCountyPopulation servedTypeSource
1Franklin County Water AssociationFranklin8,200CommunityGroundwater
2Brookville Water WorksFranklin2,800CommunityGroundwater
3Oldenburg Water WorksFranklin880CommunityPurchased surface water
4Laurel Water DepartmentFranklin800CommunityGroundwater
5Bible Baptist ChurchFranklin240Transient non-communityGroundwater
6Franklin County ParkFranklin200Transient non-communityGroundwater
7Country Side Mobile HomeFranklin180CommunityGroundwater
8Metamora Church of GodFranklin100Transient non-communityGroundwater
9Whitewater Formerly Cottonwood CampgrndFranklin100Transient non-communityGroundwater
10Morgans Canoe Rent (Brookville)Franklin65Transient non-communityGroundwater
11Haspin AcresFranklin29Transient non-communityGroundwater

Franklin County water systems: frequently asked questions

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

EPA's SDWIS records file 11 active public water systems under Franklin County, Indiana: 5 community systems (45%) and 6 transient non-community systems (55%).

Who supplies drinking water in Franklin County, IN?

The largest community water systems filed under Franklin County are Franklin County Water Association (8,200 people served), Brookville Water Works (2,800 people served) and Oldenburg Water Works (880 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 Franklin County's drinking water come from groundwater or surface water?

Of the 11 active public water systems in Franklin County, 91% draw mainly on groundwater and 9.1% on surface water, counting purchased supplies. The largest system, Franklin County Water Association, uses groundwater.

Where can I find a water quality report for Franklin 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. 5 community systems are filed under Franklin 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 Franklin 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 Franklin County, Indiana”, https://aquacensus.com/water-systems/indiana/franklin (data as of October 1, 2026).