How many water violations are in Miami County?

Miami County has 10,453 total drinking water violations across 66 water systems, of which 592 are health-based violations. 93.9% of systems have at least one violation.

How many people get water from Miami County systems?

Water systems in Miami County serve approximately 26,268 people through 66 public water systems.

Has PFAS been detected in Miami County water?

Under EPA UCMR5, 0 of 1 tested systems in Miami County had at least one PFAS detection (0.0% of the UCMR5-tested subset - not of all 66 SDWIS systems).

What types of water sources supply Miami County?

Water systems in Miami County use GW (66 systems) as their primary water sources.

Are health-based violations serious?

Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 5.7% of Miami County's violations are health-based. Among counties with any SDWIS violations, this extract puts Miami County in the lower health-based share band. Not all violations indicate immediate health risk, but they require corrective action.

Where does Miami County sit among U.S. counties for water-system population?

According to EPA SDWIS county population served used on /counties, Miami County ranks #1,502 of 3,254 counties by people served, and #47 of 92 counties in Indiana. Ordinals use the same total_population DESC sort as the counties directory. See /methodology#corpus-placement.

Counties → Indiana

Miami County, Indiana

Compiled by PlainWater · May 15, 2026

SDWIS compliance plate

Sheet IN103 · Miami County 66 sys · 10,453 viol · #1502/3254

VIOL-SEVERE · HEALTH-LOW · RANK-MID · PHOTO-FINISH · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

VIOL-SEVERE 93.9% flagged
HEALTH-LOW 5.7% health
RANK-MID #1502/3254
PHOTO-FINISH ±0.1 pp
PFAS-CLEAN 0.0% detect
SRC-GW GW lead 100%
SYS-MID 66 systems
BOOK-FULL 7/7 fields

Nearest flagged-rate peer: LaGrange County ( -0.1 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Miami County ranks #1,502 of 3,254 counties by people served, and #47 of 92 counties in Indiana. See methodology · corpus placement.

Miami County standing, mid-flagged corpus third

Flagged-system rate 93.9% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 5.7% is health-based share at or below the lower third (≤ 10.3%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #1,502 of 3,254 · #47 of 92 in Indiana.

Water Systems

System Name	Population	Violations	PFAS
Peru Water Department	11,417	144	Clean
Peru Utilities/Grissom	2,500	31	-
Maconaquah School Corporation	2,100	65	-
Converse Water Works	1,265	139	-
Mississinewa Lake - Miami Campground	1,000	43	-
Bunker Hill Water Works	900	48	-
McClure Oil Corporation-Store #9	620	18	-
North Miami Elementary School	600	317	-
North Miami High School	501	3	-
Pipe Creek Elementary	350	24	-
Hidden Creek Campground	345	51	-
Knights Inn	315	80	-
Eastpointe Bible Church	290	52	-
Deer Creek Estates Home Water Assoc.	265	88	-
Maple Lawn Village	250	534	-
Woodys Camp & Bait - North	240	9	-
Bennetts Switch Community Church	200	6	-
Woodys Camp & Bait	175	103	-
Woodland Hills Mobile Home Park #2	168	46	-
First Church of Christ	150	42	-
Cedar Creek Mobile Home Park	150	246	-
Calvary Church	128	0	-
Dutch Cafe	120	24	-
Rock Hollow Golf Club	100	23	-
Orion Safety Products	100	4	-
Orion Safety Products	100	310	-
Woodland Hills Mobile Home Park #1	100	51	-
Wells Homeowners Association, Inc.	98	217	-
Loree Brethren Church	90	107	-
Rabers Kountry Store LLC	85	6	-
Howard Miami Mennonite Church	85	84	-
Mississinewa Lake - Miami Ramp	81	32	-
Los Primos Grill and Bar	75	156	-
Are Enterprises LLC	62	1	-
McGrawsville Community Ch/Promised Land	60	10	-
Roads End Mobile Home Park	60	58	-
Mexico Petroleum Inc.	57	40	-
The Farmhouse Cafe	56	95	-
Best Western - Circus City Inn	56	58	-
Hilltop Ridge Apartments	52	195	-
Steplers Restaurant	50	26	-
Great Lakes Resort	50	104	-
Great Lakes Resort	50	87	-
Garden Gate Greenhouse	45	12	-
Engaging Minds Autism Services	45	4	-
Indiana Oaks Golf Club	45	86	-
Church of Hope, Inc.	40	0	-
Miami Trucking, Inc.	40	0	-
Honey Bear Hollow Family Campground	40	31	-
Kings Court Mobile Home Park	37	897	-

Compare beyond Indiana

Mid-flagged peers for Miami County

Cross-state counties nearest Miami County on flagged-system share (93.9%) and cumulative violation count (10,453). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.