Indiana Tap Water Quality Report

448 cities analyzed • 3,847,778 people served

Updated March 2026 • Data from EWG & EPA SDWIS

448

Cities Analyzed

6.0

Avg Above Guidelines

3,847,778

Total Population Served

Best Water Quality

Rolling Prairie (0 above guidelines)

Most Concerns

Brownstown (18 above guidelines)

Most Common Contaminants in Indiana

Contaminant	Found In	% of Cities
Total trihalomethanes (TTHMs) carcinogen	398 of 448	89%
Haloacetic acids (HAA5) carcinogen	386 of 448	86%
Barium	344 of 448	77%
Fluoride	324 of 448	72%
Radium, combined (-226 and -228)	263 of 448	59%
Nitrate carcinogen	178 of 448	40%
Chloroform carcinogen	172 of 448	38%
Bromodichloromethane carcinogen	167 of 448	37%
Arsenic carcinogen	152 of 448	34%
Dibromochloromethane carcinogen	146 of 448	33%

City-by-City Water Quality Rankings

Ranked by number of contaminants above EWG health guidelines (most to fewest).

#	City	Detected	Above Guidelines	Above Legal	People Served
1	Brownstown	25	18	2	13,667
2	South Bend	36	16	0	115,000
3	Mishawaka	28	15	0	49,675
4	New Haven	31	15	0	15,700
5	Camby	30	15	0	2,503
6	Fort Wayne	30	14	0	266,000
7	East Chicago	24	14	0	29,500
8	Vincennes	20	14	0	18,701
9	Morgantown	28	14	0	13,882
10	Greensburg	27	14	0	12,650
11	Danville	28	14	0	10,500
12	Indianapolis	28	13	0	862,835
13	Elkhart	25	13	0	45,698
14	Bargersville	22	13	0	31,425
15	Schererville	19	13	0	30,000
16	Brownsburg	29	13	0	23,750
17	Logansport	19	13	0	18,369
18	Bedford	25	13	0	14,000
19	Mooresville	15	13	0	8,200
20	Whitestown	28	13	0	5,880
21	Monroeville	17	13	0	1,400
22	Lizton	28	13	0	488
23	Andrews	18	13	0	0
24	West Lafayette	23	12	0	55,000
25	Valparaiso	20	12	0	36,000
26	New Castle	18	12	0	19,880
27	Frankfort	18	12	0	16,422
28	Martinsville	25	12	0	15,000
29	Peru	17	12	0	11,417
30	Plymouth	16	12	0	10,033
31	Hobart	17	12	0	5,500
32	Edinburgh	15	12	0	5,300
33	Pimento	19	12	0	2,595
34	Winamac	16	12	0	2,400
35	Long Beach	21	12	0	2,050
36	Woodburn	16	12	0	1,609
37	Brooklyn	15	12	0	1,600
38	Trafalgar	14	12	0	1,490
39	New Carlisle	15	12	0	384
40	Santa Claus	24	12	0	0
41	Goshen	22	11	0	32,267
42	Greenfield	20	11	0	23,000
43	Taylorsville	19	11	0	13,547
44	Patriot	15	11	0	11,937
45	Boonville	18	11	0	10,260
46	Salem	17	11	0	8,458
47	Nineveh	14	11	0	4,095
48	Albion	13	11	0	2,349
49	Hope	19	11	0	2,113
50	Wakarusa	14	11	0	1,998
51	Harlan	14	11	0	1,634
52	Westport	17	11	1	1,300
53	Galveston	13	11	0	1,258
54	Grabill	14	11	0	1,250
55	Morristown	13	11	0	1,218
56	Wolcott	13	11	0	1,001
57	Oldenburg	17	11	0	880
58	Linden	14	11	0	759
59	Chalmers	15	11	0	550
60	La Porte	18	11	0	197
61	Kingsford Heights	14	11	0	0
62	Orland	14	11	0	0
63	Lakeville	15	11	0	0
64	Bruceville	11	11	0	0
65	Butlerville	14	11	0	0
66	Michigan City	19	10	0	33,996
67	Crown Point	16	10	0	30,000
68	Laporte	18	10	0	22,000
69	Griffith	22	10	0	16,893
70	Washington	16	10	0	13,690
71	Dubois	20	10	0	13,503
72	Princeton	15	10	0	10,875
73	Rushville	14	10	0	6,800
74	Street	14	10	0	6,000
75	Whiting	20	10	0	4,900
76	Tennyson	20	10	0	4,158
77	Orleans	20	10	0	3,677
78	French Lick	20	10	0	3,188
79	Roachdale	16	10	0	1,431
80	Dayton	22	10	0	1,420
81	Remington	14	10	0	1,182
82	Ogden Dunes	15	10	0	1,110
83	Francisco	15	10	0	900
84	St. Meinrad	21	10	0	658
85	Kingsbury	14	10	0	240
86	Lynnville	20	10	0	0
87	English	20	10	0	0
88	Bloomington	17	9	0	83,000
89	Marion	15	9	0	28,327
90	Ellettsville	17	9	0	13,910
91	Mount Vernon	16	9	0	8,912
92	Harrodsburg	17	9	0	8,730
93	Fortville	11	9	0	7,638
94	Haubstadt	20	9	0	4,775
95	Jasonville	13	9	0	3,660
96	Middlebury	12	9	0	3,420
97	Ossian	12	9	0	3,289
98	Syracuse	12	9	0	2,810
99	Walkerton	13	9	0	2,262
100	Roanoke	13	9	0	1,722
101	Gentryville	10	9	0	1,625
102	Freelandville	10	9	0	1,103
103	Pierceton	11	9	0	1,100
104	St. Paul	12	9	0	1,096
105	Walton	13	9	0	1,040
106	Hamilton	12	9	0	1,035
107	Winslow	15	9	0	1,010
108	Mentone	13	9	0	1,001
109	Goodland	13	9	0	990
110	Hymera	14	9	0	984
111	Millersburg	15	9	0	907
112	Kewanna	11	9	0	663
113	Medaryville	12	9	0	614
114	Solsberry	17	9	0	95
115	Winona Lake	11	9	0	95
116	Bourbon	13	9	0	0
117	Hardinsburg	22	9	0	0
118	Camden	11	9	0	0
119	Hammond	18	8	0	78,384
120	Munster	18	8	0	23,894
121	Highland	18	8	0	23,546
122	Jasper	17	8	0	17,077
123	Madison	18	8	0	15,323
124	Bluffton	14	8	0	10,298
125	Tell City	14	8	0	9,315
126	Rochester	12	8	0	6,218
127	Monticello	10	8	0	5,300
128	Whiteland	18	8	0	5,045
129	Fort Branch	14	8	0	3,900
130	Knox	10	8	0	3,700
131	Nashville	10	8	0	3,315
132	Williamsport	11	8	0	1,800
133	Odon	9	8	0	1,703
134	Wanatah	10	8	0	1,050
135	Dugger	10	8	0	924
136	Hamlet	9	8	0	801
137	Atlanta	12	8	0	735
138	Laurel	9	8	0	560
139	Reynolds	10	8	0	533
140	Corunna	10	8	0	255
141	Richmond	15	8	0	150
142	Bremen	12	8	0	75
143	Ambia	10	8	0	0
144	North Liberty	12	8	0	0
145	Kingman	10	8	0	0
146	Dupont	18	8	0	0
147	South Whitley	12	8	0	0
148	Cynthiana	15	8	0	0
149	Dyer	13	7	0	16,800
150	Seelyville	8	7	0	7,500
151	Clinton	9	7	0	4,641
152	Hebron	10	7	0	3,724
153	St. Joe	10	7	0	2,076
154	North Judson	12	7	0	2,013
155	St. Anthony	8	7	0	1,813
156	Portage	12	7	0	1,800
157	Monon	10	7	0	1,700
158	Troy	10	7	0	1,223
159	Birdseye	8	7	0	972
160	Cedar Lake	9	7	0	950
161	St. Bernice	9	7	0	750
162	Wabash	11	7	0	416
163	Glenwood	12	7	0	313
164	Schneider	11	7	0	267
165	Westfield	9	7	0	135
166	Lacrosse	9	7	0	0
167	Greenwood	11	6	0	188,380
168	Evansville	16	6	0	182,444
169	Lafayette	17	6	0	70,835
170	Anderson	14	6	0	58,942
171	Columbus	17	6	0	48,948
172	Plainfield	12	6	0	34,477
173	Chandler	14	6	0	20,120
174	Sellersburg	11	6	0	20,028
175	Bloomfield	11	6	0	18,398
176	St. John	12	6	0	17,000
177	Lebanon	12	6	0	16,098
178	Jeffersonville	13	6	0	15,750
179	Ramsey	13	6	1	15,150
180	Speedway	17	6	0	12,473
181	Oakland City	11	6	0	8,700
182	Crane	9	6	0	6,262
183	Paoli	13	6	1	4,425
184	Napoleon	9	6	0	3,970
185	Westville	8	6	0	2,850
186	Pekin	12	6	0	2,150
187	Kouts	8	6	0	2,028
188	Milltown	9	6	0	2,000
189	Osgood	8	6	0	1,684
190	Cincinnati	9	6	0	1,418
191	Morocco	8	6	0	1,200
192	Lanesville	12	6	0	1,009
193	St. Mary Of The Woods	7	6	0	900
194	Royal Center	10	6	0	861
195	Grandview	8	6	0	805
196	Donaldson	10	6	0	680
197	Paragon	8	6	0	663
198	Sharpsville	9	6	0	553
199	Wheatland	10	6	0	474
200	Lagro	8	6	0	438
201	Ojai	8	6	0	113
202	Elberfeld	16	6	0	0
203	Demotte	10	6	0	0
204	Crothersville	15	6	0	0
205	Carmel	14	5	0	90,434
206	Scottsburg	14	5	0	19,120
207	Huntington	10	5	0	17,300
208	Connersville	11	5	0	13,953
209	Auburn	11	5	0	12,800
210	Greencastle	11	5	0	12,699
211	Georgetown	10	5	0	10,442
212	Decatur	9	5	0	9,900
213	Rensselaer	9	5	0	6,200
214	Elizabeth	7	5	0	4,450
215	West Terre Haute	8	5	1	4,075
216	Union City	8	5	0	3,513
217	Avilla	7	5	0	2,700
218	Rockport	9	5	0	2,520
219	Owensville	8	5	0	2,148
220	Oxford	8	5	0	1,200
221	Clay City	7	5	0	1,001
222	Swayzee	8	5	0	975
223	Francesville	10	5	0	969
224	Medora	6	5	0	873
225	Patoka	7	5	0	750
226	Etna Green	7	5	0	663
227	Dana	7	5	0	660
228	Hudson	7	5	0	518
229	Perrysville	6	5	0	470
230	Farmersburg	6	5	0	0
231	Carlisle	10	5	0	0
232	Fillmore	11	5	0	0
233	Jamestown	6	5	0	0
234	Campbellsburg	9	5	0	0
235	Ashley	7	5	0	0
236	Shipshewana	7	5	0	0
237	Kendallville	10	5	0	0
238	Decker	6	5	0	0
239	Batesville	8	5	0	0
240	Argos	8	5	0	0
241	Brazil	6	4	0	12,000
242	Borden	8	4	0	11,637
243	Lawrenceburg	6	4	0	9,925
244	Brookville	6	4	0	9,018
245	Elwood	7	4	0	8,586
246	North Vernon	7	4	0	7,812
247	Notre Dame	8	4	0	7,400
248	Nappanee	6	4	0	6,800
249	Garrett	6	4	0	6,390
250	Yorktown	7	4	0	6,200
251	North Manchester	6	4	0	6,100
252	West Harrison	6	4	0	5,595
253	Greendale	5	4	0	5,092
254	New Washington	11	4	0	4,315
255	Shoals	7	4	0	3,656
256	Delphi	6	4	0	3,200
257	Linton	6	4	0	2,892
258	812-295-9359	6	4	0	2,800
259	Reelsville	6	4	0	2,800
260	Lapel	6	4	0	2,442
261	Rising Sun	6	4	0	2,400
262	Wingate	6	4	0	2,299
263	Albany	6	4	0	2,165
264	Liberty	6	4	0	2,133
265	Shelburn	6	4	0	2,100
266	Paxton	5	4	0	2,013
267	Culver	7	4	0	1,940
268	Battle Ground	6	4	0	1,940
269	Frankton	6	4	0	1,800
270	Vevay	7	4	0	1,750
271	Hagerstown	6	4	0	1,700
272	Milford	6	4	0	1,556
273	Terre Haute	6	4	0	1,523
274	Arcadia	6	4	0	1,515
275	Redkey	6	4	0	1,323
276	Loogootee	6	4	0	1,296
277	Otterbein	6	4	0	1,262
278	Center Point	6	4	0	1,088
279	Southfield	6	4	0	1,042
280	Rosedale	5	4	0	972
281	Spiceland	6	4	0	969
282	Shirley	7	4	0	960
283	Ridgeville	6	4	0	890
284	Monroe	7	4	0	872
285	Van Buren	6	4	0	864
286	Waldron	6	4	0	800
287	West Lebanon	6	4	0	723
288	Clarks Hill	8	4	0	660
289	Vernon	8	4	0	575
290	North Salem	6	4	0	504
291	Newport	6	4	0	495
292	Sandborn	5	4	0	449
293	Ligonier	5	4	0	350
294	New Richmond	6	4	0	330
295	Marshall	5	4	0	330
296	Leavenworth	6	4	0	233
297	Lowell	6	4	0	210
298	Rome City	8	4	0	94
299	Selma	6	4	0	68
300	Poseyville	7	4	1	0
301	Bunker Hill	7	4	0	0
302	Farmland	6	4	0	0
303	Losantville	6	4	0	0
304	Boswell	6	4	0	0
305	Alexandria	6	4	0	0
306	Butler	6	4	0	0
307	Bainbridge	6	4	0	0
308	New Harmony	8	4	0	0
309	Hillsboro	6	4	0	0
310	Marengo	6	4	0	0
311	Flora	6	4	0	0
312	Covington	6	4	0	0
313	Lyons	5	4	0	0
314	Spencer	4	3	0	9,903
315	Corydon	9	3	0	8,673
316	Milan	5	3	0	8,642
317	Otisco	3	3	1	6,352
318	Mitchell	5	3	0	6,313
319	Huntingburg	9	3	0	6,230
320	Portland	6	3	0	6,209
321	Hanover	5	3	0	5,400
322	Aurora	5	3	0	5,250
323	Tipton	5	3	0	5,200
324	Pendleton	6	3	0	4,840
325	Rockville	5	3	0	4,195
326	Upland	5	3	0	3,308
327	Cloverdale	5	3	0	3,168
328	Chesterfield	5	3	0	2,800
329	Dunkirk	5	3	0	2,305
330	Waterloo	7	3	0	2,242
331	Middleton	5	3	0	2,050
332	Brookston	6	3	0	1,815
333	Versailles	5	3	0	1,784
334	Cannelton	5	3	0	1,658
335	Rossville	5	3	0	1,653
336	Eaton	5	3	0	1,595
337	Seymour	5	3	0	1,560
338	Daleville	5	3	0	1,560
339	Parker	5	3	0	1,400
340	Geneva	4	3	0	1,359
341	Mulberry	8	3	0	1,252
342	Warren	7	3	0	1,237
343	Akron	5	3	0	1,206
344	Ladoga	5	3	0	1,180
345	Cayuga	6	3	0	1,162
346	Markle	5	3	0	1,095
347	Sunman	6	3	0	1,058
348	Silver Lake	6	3	0	1,030
349	Montezuma	5	3	1	1,022
350	Waynetown	6	3	0	953
351	Lafontaine	5	3	0	906
352	Milroy	6	3	0	900
353	Gaston	5	3	0	871
354	Milton	5	3	0	790
355	New Market	6	3	0	765
356	Hillsdale	4	3	0	735
357	Pennville	5	3	0	706
358	Otwell	5	3	0	705
359	Centerpoint	5	3	0	550
360	Orestes	5	3	0	400
361	Churubusco	5	3	0	300
362	Hazleton	4	3	0	288
363	Shelbyville	4	3	0	58
364	Clayton	4	3	0	40
365	Granger	8	3	0	25
366	Lake Village	5	3	0	0
367	Attica	11	3	0	0
368	Fowler	6	3	0	0
369	Cicero	6	3	0	0
370	Holton	5	3	0	0
371	Lynn	5	3	0	0
372	Hartford City	5	3	0	0
373	Topeka	5	3	0	0
374	Fairmount	5	3	0	0
375	Berne	6	3	0	0
376	Thorntown	5	3	0	0
377	Advance	5	3	0	0
378	Montpelier	5	3	0	0
379	Monroe City	5	3	0	0
380	Bloomingdale	4	3	0	0
381	Petersburg	5	3	0	0
382	Henryville	2	2	0	8,057
383	Greenville	2	2	0	6,100
384	Ireland	3	2	0	4,295
385	Ferdinand	2	2	0	3,225
386	Greentown	5	2	0	2,500
387	Knightstown	4	2	0	2,182
388	Dillsboro	5	2	0	2,000
389	Chrisney	2	2	0	1,862
390	Dale	2	2	0	1,637
391	Brook	7	2	0	986
392	West Covina	5	2	0	598
393	Cromwell	3	2	0	593
394	Montgomery	2	2	0	510
395	Sandy	5	2	0	470
396	Spurgeon	2	2	0	430
397	Englewood	6	2	0	417
398	Mt. Summit	4	2	0	400
399	Roann	4	2	0	400
400	St. Petersburg	4	2	0	362
401	Noblesville	4	2	0	350
402	Farmington Hills	4	2	0	290
403	Pontiac	5	2	0	272
404	Grantsburg	2	2	0	250
405	Worthington	4	2	0	249
406	Bristol	6	2	0	238
407	Columbia City	4	2	0	215
408	Angola	3	2	0	200
409	Kentland	5	2	0	190
410	Kokomo	4	2	0	175
411	Lapeer	7	2	0	110
412	St. Charles	4	2	0	85
413	Priest River	6	2	0	84
414	Lapaz	4	2	0	73
415	Leesburg	4	2	0	67
416	Clinton Township	4	2	0	55
417	Durango	4	2	0	46
418	Claypool	5	2	0	44
419	Sheridan	4	2	0	37
420	Winchester	3	2	0	35
421	Jonesville	5	2	0	35
422	Kimmell	4	2	0	31
423	Crawfordsville	4	2	0	30
424	Russiaville	4	2	0	30
425	Cambridge City	4	2	0	25
426	Canaan	2	2	0	0
427	Kirklin	4	2	0	0
428	Jonesboro	4	2	0	0
429	Holland	2	2	0	0
430	Fremont	5	2	0	0
431	Ingalls	5	1	0	7,600
432	Chicago	3	1	0	315
433	Mather	4	1	0	232
434	Durham	3	1	0	190
435	Leo	4	1	0	182
436	Louisville	3	1	0	140
437	Warsaw	3	1	0	132
438	Dover	4	1	0	128
439	Muncie	2	1	0	126
440	Lincoln	3	1	0	90
441	King Of Prussia	3	1	0	80
442	Lagrange	2	1	0	47
443	Twelve Mile	2	1	0	40
444	Oakford	3	1	0	25
445	Russellville	3	1	0	0
446	Burlington	3	1	0	0
447	Earl Park	4	1	0	0
448	Rolling Prairie	2	0	0	99

Recommended Filtration for Indiana

Based on the most common contaminants found across Indiana (Total trihalomethanes (TTHMs), Haloacetic acids (HAA5), Barium), we recommend a reverse osmosis system or high-quality carbon block filter to remove disinfection byproducts and their precursors.

Echo RO System

Removes up to 99.9% of contaminants. The gold standard for drinking water in Indiana homes.

View RO Systems

Echo Whole-Home Filter

Protect every tap in your home from chlorine, VOCs, and disinfection byproducts.

View Whole-Home Filters

Echo Hydrogen Water Flask

Once your water is clean, supercharge it with molecular hydrogen for antioxidant and anti-inflammatory benefits.

Shop Hydrogen Flask

Frequently Asked Questions

Is Indiana tap water safe to drink?

Water quality varies significantly across Indiana. Of the 448 cities analyzed, the average city has 6.0 contaminants above EWG health guidelines. The best water quality was found in Rolling Prairie. We recommend checking your specific city's report for detailed information.

What city has the best water in Indiana?

Based on our analysis, Rolling Prairie has the fewest contaminants above EWG health guidelines in Indiana, with 0 above guideline levels.

What city has the worst water in Indiana?

Based on our analysis, Brownstown has the most contaminants above EWG health guidelines in Indiana, with 18 above guideline levels.

What's the best water filter for Indiana residents?

For most Indiana households, we recommend a reverse osmosis (RO) system for drinking water and a whole-home filter for showers and baths. The specific recommendation depends on your city's contaminant profile — check your city's report for personalized guidance.

National Water Quality Reports

Data sources: Environmental Working Group (EWG) Tap Water Database, U.S. EPA Safe Drinking Water Information System (SDWIS)

Last updated: March 2026

Methodology: Contaminant levels are compared against both EPA legal limits (Maximum Contaminant Levels) and EWG health guidelines, which are often stricter and based on the latest scientific research.

Indiana Water Quality Report (2026)