Best Tap Water in the U.S.

Water Quality Violations
Average Water Bill
Water Quality Violations
1.HawaiiHawaii2
2.NebraskaNebraska121
3.DelawareDelaware131
4.KentuckyKentucky142
5.South CarolinaSouth Carolina196
6.North DakotaNorth Dakota199
7.Rhode IslandRhode Island243
8.South DakotaSouth Dakota303
9.NevadaNevada358
10.AlabamaAlabama376
11.MarylandMaryland400
12.MassachusettsMassachusetts545
13.MinnesotaMinnesota545
14.WyomingWyoming632
15.TennesseeTennessee671
16.New HampshireNew Hampshire673
17.UtahUtah815
18.IowaIowa852
19.MississippiMississippi1,129
20.ArkansasArkansas1,135
21.KansasKansas1,140
22.VirginiaVirginia1,288
23.GeorgiaGeorgia1,312
24.VermontVermont1,376
25.MissouriMissouri1,820
26.CaliforniaCalifornia2,038
27.MontanaMontana2,092
28.OregonOregon2,317
29.IdahoIdaho2,503
30.North CarolinaNorth Carolina2,877
31.ConnecticutConnecticut2,900
32.WisconsinWisconsin2,903
33.MaineMaine2,907
34.ColoradoColorado2,929
35.LouisianaLouisiana3,103
36.ArizonaArizona3,122
37.FloridaFlorida3,192
38.OhioOhio3,598
39.New MexicoNew Mexico3,700
40.New JerseyNew Jersey3,815
41.WashingtonWashington3,907
42.IndianaIndiana4,612
43.IllinoisIllinois4,637
44.AlaskaAlaska4,650
45.MichiganMichigan5,111
46.OklahomaOklahoma5,379
47.New YorkNew York5,607
48.West VirginiaWest Virginia8,490
49.PennsylvaniaPennsylvania21,527
50.TexasTexas23,628

Introduction

In all corners of America, from Alaska's glacial rivers to Florida's tropical springs, the quality of tap water is a testament to the natural resources, infrastructure, and regulatory fortitude of each state. With over 50,000 community water systems in the U.S, the quality of tap water can drastically vary, making it an intricate part of our everyday lives and health. According to the most recent water quality violation data, there is a wide range in the commitment and success by states in maintaining compliance with federal water standards. Our analysis relies on the water quality violations metric, which catalogues the instances when tap water quality fails to meet federal guidelines in a state. Fewer violations commonly indicate a more robust drinking water sector and cleaner tap water. Still, it's necessary to remember that these figures are statewide totals and might not reflect the specific conditions in individual cities or communities.

Key findings from our investigation into the data include:

  • Hawaii shines as the U.S state with the best tap water, recording a mere two water quality violations. This is a remarkable achievement given the standard of federal water quality regulations.
  • The two subsequent top-performers are Nebraska and Delaware, with 121 and 131 violations respectively.
  • An alarming trend emerges as we analyze states at the other end of the spectrum. Texas (23,628 violations), Pennsylvania (21,527 violations) and West Virginia (8,490 violations), are struggling significantly with maintaining clean tap water.
  • Overall, a strong geographical trend doesn't leap out from the data, with top performers spread across the country, from the islands of Hawaii to the heartlands of Nebraska.

States with the Best Tap Water

The state with the the best tap water in the United States is none other than the tropical paradise, Hawaii. Boasting a remarkably low number of two water quality violations, Hawaii demonstrates exceptional commitment to maintaining pure and safe water sources. Following in Hawaii's footsteps are several states where efforts to ensure clean tap water do not go unnoticed. Nebraska and Delaware, with 121 and 131 water quality violations respectively, take the second and third place. The fourth spot goes to Kentucky with 142 water quality violations, and South Carolina follows close with 196 violations. North Dakota, Rhode Island, South Dakota, Nevada, and Alabama complete the top ten, with water quality violations ranging from 199 to 376. These states, despite their geographic diversity, share a common success in providing relatively safe and clean tap water to their residents.

States with the Best Tap Water (Number of Violations):

  1. Hawaii - 2
  2. Nebraska - 121
  3. Delaware - 131
  4. Kentucky - 142
  5. South Carolina - 196
  6. North Dakota - 199
  7. Rhode Island - 243
  8. South Dakota - 303
  9. Nevada - 358
  10. Alabama - 376

By Region

Alabama

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Alabama

Metric

Value

Rank

Water Quality Violations

376

#10

Alaska

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Alaska

Metric

Value

Rank

Water Quality Violations

4,650

#44

Arizona

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Arizona

Metric

Value

Rank

Water Quality Violations

3,122

#36

Arkansas

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Arkansas

Metric

Value

Rank

Water Quality Violations

1,135

#20

California

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California

Metric

Value

Rank

Water Quality Violations

2,038

#26

Colorado

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Colorado

Metric

Value

Rank

Water Quality Violations

2,929

#34

Connecticut

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Connecticut

Metric

Value

Rank

Water Quality Violations

2,900

#31

Delaware

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Delaware

Metric

Value

Rank

Water Quality Violations

131

#3

Florida

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Florida

Metric

Value

Rank

Water Quality Violations

3,192

#37

Georgia

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Georgia

Metric

Value

Rank

Water Quality Violations

1,312

#23

Hawaii

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Hawaii

Metric

Value

Rank

Water Quality Violations

2

#1

Idaho

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Idaho

Metric

Value

Rank

Water Quality Violations

2,503

#29

Illinois

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Illinois

Metric

Value

Rank

Water Quality Violations

4,637

#43

Indiana

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Indiana

Metric

Value

Rank

Water Quality Violations

4,612

#42

Iowa

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Iowa

Metric

Value

Rank

Water Quality Violations

852

#18

Kansas

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Kansas

Metric

Value

Rank

Water Quality Violations

1,140

#21

Kentucky

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Kentucky

Metric

Value

Rank

Water Quality Violations

142

#4

Louisiana

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Louisiana

Metric

Value

Rank

Water Quality Violations

3,103

#35

Maine

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Maine

Metric

Value

Rank

Water Quality Violations

2,907

#33

Maryland

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Maryland

Metric

Value

Rank

Water Quality Violations

400

#11

Massachusetts

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Massachusetts

Metric

Value

Rank

Water Quality Violations

545

#12

Michigan

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Michigan

Metric

Value

Rank

Water Quality Violations

5,111

#45

Minnesota

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Minnesota

Metric

Value

Rank

Water Quality Violations

545

#13

Mississippi

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Mississippi

Metric

Value

Rank

Water Quality Violations

1,129

#19

Missouri

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Missouri

Metric

Value

Rank

Water Quality Violations

1,820

#25

Montana

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Montana

Metric

Value

Rank

Water Quality Violations

2,092

#27

Nebraska

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Nebraska

Metric

Value

Rank

Water Quality Violations

121

#2

Nevada

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Nevada

Metric

Value

Rank

Water Quality Violations

358

#9

New Hampshire

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New Hampshire

Metric

Value

Rank

Water Quality Violations

673

#16

New Jersey

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New Jersey

Metric

Value

Rank

Water Quality Violations

3,815

#40

New Mexico

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New Mexico

Metric

Value

Rank

Water Quality Violations

3,700

#39

New York

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New York

Metric

Value

Rank

Water Quality Violations

5,607

#47

North Carolina

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North Carolina

Metric

Value

Rank

Water Quality Violations

2,877

#30

North Dakota

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North Dakota

Metric

Value

Rank

Water Quality Violations

199

#6

Ohio

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Ohio

Metric

Value

Rank

Water Quality Violations

3,598

#38

Oklahoma

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Oklahoma

Metric

Value

Rank

Water Quality Violations

5,379

#46

Oregon

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Oregon

Metric

Value

Rank

Water Quality Violations

2,317

#28

Pennsylvania

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Pennsylvania

Metric

Value

Rank

Water Quality Violations

21,527

#49

Rhode Island

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Rhode Island

Metric

Value

Rank

Water Quality Violations

243

#7

South Carolina

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South Carolina

Metric

Value

Rank

Water Quality Violations

196

#5

South Dakota

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South Dakota

Metric

Value

Rank

Water Quality Violations

303

#8

Tennessee

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Tennessee

Metric

Value

Rank

Water Quality Violations

671

#15

Texas

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Texas

Metric

Value

Rank

Water Quality Violations

23,628

#50

Utah

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Utah

Metric

Value

Rank

Water Quality Violations

815

#17

Vermont

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Vermont

Metric

Value

Rank

Water Quality Violations

1,376

#24

Virginia

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Virginia

Metric

Value

Rank

Water Quality Violations

1,288

#22

Washington

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Washington

Metric

Value

Rank

Water Quality Violations

3,907

#41

West Virginia

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West Virginia

Metric

Value

Rank

Water Quality Violations

8,490

#48

Wisconsin

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Wisconsin

Metric

Value

Rank

Water Quality Violations

2,903

#32

Wyoming

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Wyoming

Metric

Value

Rank

Water Quality Violations

632

#14