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Randolph County, Indiana — public water systems

At a glance

40 active public water systems are filed under Randolph County, Indiana in EPA's SDWIS records, together reporting 17,394 people served. The largest is Indiana American Water - Winchester, which reports serving 5,405 people. 8 are community water systems serving people where they live; the other 32 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

40

Population served

17.4K

Community systems

8

Groundwater share

100%

How does Randolph County compare with other Indiana counties?

Randolph County has the 32nd-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 17,394 people served in total, the 68th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 435 people, well 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 Randolph County's drinking water come from?

By primary water source, Randolph County's active systems draw on groundwater (40, 100%). 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 - Winchester, draws primarily on groundwater.

What kinds of water systems operate in Randolph County?

Randolph County's active systems break down as 8 community systems (20%), 3 non-transient non-community systems (7.5%) and 29 transient non-community systems (73%). 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 private (75%) and local government (25%).

Water systems in Randolph County

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Active public water systems in Randolph County, Indiana
#Water systemCountyPopulation servedTypeSource
1Indiana American Water - WinchesterRandolph5,405CommunityGroundwater
2Union City Water WorksRandolph3,513CommunityGroundwater
3Parker City Water DepartmentRandolph1,400CommunityGroundwater
4Farmland Municipal Water WorksRandolph1,301CommunityGroundwater
5Lynn Water CompanyRandolph1,097CommunityGroundwater
6Monroe Central School Corp.Randolph993Non-transient non-communityGroundwater
7Ridgeville Water DepartmentRandolph825CommunityGroundwater
8Winchester Speedway (Hospitality House)Randolph555Transient non-communityGroundwater
9L & M Regional Water DistrictRandolph450CommunityGroundwater
10Deerfield Elementary SchoolRandolph238Non-transient non-communityGroundwater
11Astral Industries, Inc.. - Stamping PlantRandolph163Non-transient non-communityGroundwater
12Trinity Lutheran ChurchRandolph135Transient non-communityGroundwater
13New Lisbon Christian ChurchRandolph97Transient non-communityGroundwater
14South Salem Church of ChristRandolph88Transient non-communityGroundwater
15Pleasant Hill ChurchRandolph77Transient non-communityGroundwater
16Bear Creek Friends ChurchRandolph70Transient non-communityGroundwater
17Hickory Hills Golf Course (Pro Shop)Randolph64Transient non-communityGroundwater
18New Liberty ChurchRandolph60Transient non-communityGroundwater
19Randolph FriendsRandolph60Transient non-communityGroundwater
20Greensfork Township Park - Artesian WellRandolph60Transient non-communityGroundwater
21Arba Friends ChurchRandolph60Transient non-communityGroundwater
22Pizza HutRandolph58Transient non-communityGroundwater
23Harrisville Christian ChurchRandolph57Transient non-communityGroundwater
24Riverside CommunityRandolph50CommunityGroundwater
25Saratoga Church of GodRandolph50Transient non-communityGroundwater
26Praise Chapel Church of GodRandolph50Transient non-communityGroundwater
27Poplar Run United BaptistRandolph45Transient non-communityGroundwater
28Golden Rule CampgroundRandolph40Transient non-communityGroundwater
29Jericho Friends ChurchRandolph38Transient non-communityGroundwater
30Rehoboth Church Inc..Randolph38Transient non-communityGroundwater
31Randolph County 4-H Grounds Main Build.Randolph30Transient non-communityGroundwater
32Randolph MotelRandolph27Transient non-communityGroundwater
33Saratoga Lions ClubRandolph25Transient non-communityGroundwater
34Abc Resorts/Kamp ModocRandolph25Transient non-communityGroundwater
35American Legion Post 353Randolph25Transient non-communityGroundwater
36Grandview CampgroundRandolph25Transient non-communityGroundwater
37Deerfield Methodist ChurchRandolph25Transient non-communityGroundwater
38Hummel Drive-inRandolph25Transient non-communityGroundwater
39Randolph County AirportRandolph25Transient non-communityGroundwater
40Astral Industries, Inc.. - OfficeRandolph25Transient non-communityGroundwater

Randolph County water systems: frequently asked questions

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

EPA's SDWIS records file 40 active public water systems under Randolph County, Indiana: 8 community systems (20%), 3 non-transient non-community systems (7.5%) and 29 transient non-community systems (73%).

Who supplies drinking water in Randolph County, IN?

The largest community water systems filed under Randolph County are Indiana American Water - Winchester (5,405 people served), Union City Water Works (3,513 people served) and Parker City Water Department (1,400 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 Randolph County's drinking water come from groundwater or surface water?

Of the 40 active public water systems in Randolph County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Indiana American Water - Winchester, uses groundwater.

Where can I find a water quality report for Randolph 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. 8 community systems are filed under Randolph 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 Randolph 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 Randolph County, Indiana”, https://aquacensus.com/water-systems/indiana/randolph (data as of October 1, 2026).