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Miami County, Indiana — public water systems

At a glance

68 active public water systems are filed under Miami County, Indiana in EPA's SDWIS records, together reporting 26,424 people served. The largest is Peru Water Department, which reports serving 11,417 people. 15 are community water systems serving people where they live; the other 53 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

68

Population served

26.4K

Community systems

15

Groundwater share

100%

How does Miami County compare with other Indiana counties?

Miami County has the 15th-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 26,424 people served in total, the 47th-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 389 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 Miami County's drinking water come from?

By primary water source, Miami County's active systems draw on groundwater (68, 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, Peru Water Department, draws primarily on groundwater.

What kinds of water systems operate in Miami County?

Miami County's active systems break down as 15 community systems (22%), 9 non-transient non-community systems (13%) and 44 transient non-community systems (65%). 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 (81%), local government (10%), federal government (4.4%) and state government (4.4%).

The 50 largest water systems in Miami County

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Active public water systems in Miami County, Indiana
#Water systemCountyPopulation servedTypeSource
1Peru Water DepartmentMiami11,417CommunityGroundwater
2Peru Utilities/GrissomMiami2,500CommunityGroundwater
3Maconaquah School CorporationMiami2,100Non-transient non-communityGroundwater
4Converse Water WorksMiami1,265CommunityGroundwater
5Mississinewa Lake - Miami CampgroundMiami1,000Transient non-communityGroundwater
6Bunker Hill Water WorksMiami900CommunityGroundwater
7Mcclure Oil Corporation-Store #9Miami620Transient non-communityGroundwater
8North Miami Elementary SchoolMiami600Non-transient non-communityGroundwater
9North Miami High SchoolMiami501Non-transient non-communityGroundwater
10Pipe Creek ElementaryMiami350Non-transient non-communityGroundwater
11Hidden Creek CampgroundMiami345Transient non-communityGroundwater
12Knights InnMiami315Transient non-communityGroundwater
13Eastpointe Bible ChurchMiami290Transient non-communityGroundwater
14Deer Creek Estates Home Water Assoc.Miami265CommunityGroundwater
15Maple Lawn VillageMiami250CommunityGroundwater
16Woodys Camp & Bait - NorthMiami240Transient non-communityGroundwater
17Bennetts Switch Community ChurchMiami200Transient non-communityGroundwater
18Woodys Camp & BaitMiami175Transient non-communityGroundwater
19Woodland Hills Mobile Home Park #2Miami168CommunityGroundwater
20Cedar Creek Mobile Home ParkMiami150CommunityGroundwater
21First Church of ChristMiami150Transient non-communityGroundwater
22Calvary ChurchMiami128Transient non-communityGroundwater
23Dutch CafeMiami120Transient non-communityGroundwater
24Orion Safety ProductsMiami100Non-transient non-communityGroundwater
25Woodland Hills Mobile Home Park #1Miami100CommunityGroundwater
26Orion Safety ProductsMiami100Non-transient non-communityGroundwater
27Rock Hollow Golf ClubMiami100Transient non-communityGroundwater
28Wells Homeowners Association, Inc..Miami98CommunityGroundwater
29Loree Brethren ChurchMiami90Transient non-communityGroundwater
30Rabers Kountry Store LLCMiami85Transient non-communityGroundwater
31Howard Miami Mennonite ChurchMiami85Transient non-communityGroundwater
32Mississinewa Lake - Miami RampMiami81Transient non-communityGroundwater
33Los Primos Grill and BarMiami75Transient non-communityGroundwater
34Kings Court Mobile Home ParkMiami70CommunityGroundwater
35Mt. Zion Free Methodist ChurchMiami65Transient non-communityGroundwater
36Are Enterprises LLCMiami62Transient non-communityGroundwater
37Roads End Mobile Home ParkMiami60CommunityGroundwater
38Mcgrawsville Community Ch/Promised LandMiami60Non-transient non-communityGroundwater
39Mexico Petroleum Inc..Miami57Transient non-communityGroundwater
40Best Western - Circus City InnMiami56Transient non-communityGroundwater
41The Farmhouse CafeMiami56Transient non-communityGroundwater
42Hilltop Ridge ApartmentsMiami52CommunityGroundwater
43Mcgrawsville Community Church Youth BldgMiami50Transient non-communityGroundwater
44Great Lakes ResortMiami50Transient non-communityGroundwater
45Great Lakes ResortMiami50Transient non-communityGroundwater
46Suttons Hungry GoatMiami50Transient non-communityGroundwater
47Garden Gate GreenhouseMiami45Transient non-communityGroundwater
48Indiana Oaks Golf ClubMiami45Transient non-communityGroundwater
49Engaging Minds Autism ServicesMiami45Non-transient non-communityGroundwater
50Church of Hope, Inc..Miami40Transient non-communityGroundwater

All other water systems in Miami County (18)

The remaining active systems filed under Miami County, largest first, with the population each reports serving.

Miami County water systems: frequently asked questions

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

EPA's SDWIS records file 68 active public water systems under Miami County, Indiana: 15 community systems (22%), 9 non-transient non-community systems (13%) and 44 transient non-community systems (65%).

Who supplies drinking water in Miami County, IN?

The largest community water systems filed under Miami County are Peru Water Department (11,417 people served), Peru Utilities/Grissom (2,500 people served) and Converse Water Works (1,265 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 Miami County's drinking water come from groundwater or surface water?

Of the 68 active public water systems in Miami County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Peru Water Department, uses groundwater.

Where can I find a water quality report for Miami 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. 15 community systems are filed under Miami 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 Miami 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 Miami County, Indiana”, https://aquacensus.com/water-systems/indiana/miami (data as of October 1, 2026).