Alaska Tap Water Quality Report

187 cities analyzed • 398,751 people served

Updated March 2026 • Data from EWG & EPA SDWIS

187

Cities Analyzed

5.2

Avg Above Guidelines

398,751

Total Population Served

Best Water Quality

Dillingham (0 above guidelines)

Most Concerns

Fairbanks (13 above guidelines)

Most Common Contaminants in Alaska

Contaminant	Found In	% of Cities
Total trihalomethanes (TTHMs) carcinogen	126 of 187	67%
Chloroform carcinogen	119 of 187	64%
Bromodichloromethane carcinogen	118 of 187	63%
Haloacetic acids (HAA5) carcinogen	110 of 187	59%
Dichloroacetic acid carcinogen	108 of 187	58%
Trichloroacetic acid carcinogen	102 of 187	55%
Nitrate and nitrite carcinogen	95 of 187	51%
Dibromochloromethane carcinogen	74 of 187	40%
Monochloroacetic acid	52 of 187	28%
Barium	38 of 187	20%

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	Anchorage	25	13	0	221,351
2	Fairbanks	21	13	0	32,324
3	Wasilla	22	12	0	8,193
4	Palmer	11	10	0	5,961
5	Kenai	14	10	0	5,200
6	Soldotna	11	10	0	3,807
7	Prudhoe Bay	12	10	0	831
8	Teller	19	10	0	275
9	Gambell	13	10	0	0
10	Little Diomede	11	10	2	0
11	Shaktoolik	12	10	0	0
12	Juneau	14	9	0	33,026
13	Sitka	14	9	0	8,748
14	Homer	14	9	0	5,508
15	Jber	14	9	0	4,872
16	Hooper Bay	12	9	0	1,200
17	Sandpoint	10	9	0	530
18	Nunam Iqua	9	9	1	203
19	Ouzinkike	9	9	0	142
20	Akhiok	11	9	0	90
21	Gulkana	11	9	1	83
22	Karluk	10	9	0	42
23	Stebbins	11	9	0	0
24	Unalakleet	9	9	0	0
25	St. Michael	11	9	0	0
26	Nikolaevsk	9	9	0	0
27	Buckland	10	9	0	0
28	Deering	12	9	1	0
29	Kotzebue	11	9	2	0
30	Koyuk	9	9	0	0
31	Savoonga	11	9	0	0
32	Shishmaref	10	9	1	0
33	Atka	10	9	0	0
34	Kodiak	10	8	0	9,047
35	Barrow	10	8	1	4,500
36	Unalaska	10	8	0	4,400
37	Wrangell	9	8	0	2,000
38	Noorvik	9	8	0	720
39	Tuluksak	11	8	0	373
40	Seldovia	9	8	0	243
41	Northway	10	8	0	223
42	Mekoryuk	10	8	0	198
43	Port Graham	8	8	0	130
44	Akutan	8	8	0	90
45	False Pass	9	8	0	73
46	Rampart	12	8	0	63
47	Port Alexander	9	8	0	58
48	Adak	8	8	0	0
49	Eielson Afb	12	8	2	0
50	Elim	8	8	0	0
51	Kivalina	10	8	0	0
52	Petersburg	9	8	0	0
53	Seward	9	7	0	2,528
54	Selawik	10	7	0	846
55	Hoonah	8	7	0	830
56	Kwethluk	8	7	0	760
57	Ft. Yukon	10	7	0	650
58	Kipnuk	8	7	0	639
59	Nunapitchuk	8	7	2	496
60	Saint Paul	12	7	0	370
61	Hydaburg	9	7	1	365
62	Chugiak	9	7	0	350
63	Kasigluk	10	7	0	276
64	Tanana	11	7	0	261
65	Anchor Point	7	7	0	248
66	Tyonek	8	7	0	199
67	Woods Cross	8	7	0	192
68	Venetie	8	7	0	181
69	Port Lions	9	7	0	175
70	Golovin	9	7	1	146
71	Hughes	10	7	0	107
72	Tatitlek	8	7	1	95
73	Larsen Bay	8	7	0	71
74	Circle	8	7	0	70
75	Denali Park	11	7	0	50
76	Takotna	7	7	0	50
77	Kasaan	8	7	0	41
78	Yakutat	8	7	0	0
79	Mcgrath	8	7	0	0
80	King Salmon	9	7	0	0
81	Emmonak	7	7	0	0
82	Shungnak	7	7	0	0
83	Craig	9	7	0	0
84	White Mountain	7	7	0	0
85	Cordova	9	6	0	1,700
86	Klawock	7	6	1	854
87	Ketchikan	7	6	0	725
88	Quinhagak	8	6	0	724
89	Scammon Bay	7	6	0	595
90	Saint Marys	8	6	0	548
91	Noatak	10	6	0	485
92	Galena	8	6	2	470
93	Encino	10	6	0	435
94	Angoon	6	6	0	375
95	Eek	6	6	0	280
96	Sacramento	8	6	1	225
97	Kaltag	10	6	0	210
98	Coffman Cove	7	6	0	199
99	Kokhanok	8	6	0	189
100	Arctic Village	6	6	0	150
101	Ward Cove	8	6	0	100
102	Kobuk	6	6	0	93
103	Koyukuk	6	6	0	85
104	Pelican	7	6	0	80
105	Chalkyitsik	9	6	2	75
106	Chignik Lagoon	6	6	0	73
107	Igiugig	8	6	0	70
108	Stevens Village	6	6	0	28
109	Akiachak	9	6	0	0
110	Kake	7	6	1	0
111	Thorne Bay	6	6	0	0
112	Bethel	6	5	0	2,020
113	Togiak	5	5	0	890
114	Mountain Village	5	5	0	850
115	Allakaket	5	5	0	135
116	Perryville	5	5	0	120
117	Pitkas Point	6	5	0	109
118	Cold Bay	6	5	0	81
119	Nelson Lagoon	7	5	0	40
120	Kiana	6	5	0	0
121	Kwigillingok	5	4	0	400
122	Huslia	5	4	0	323
123	Chignik Bay	5	4	0	84
124	Haines	4	4	0	0
125	Brevig Mission	5	4	0	0
126	Newtok	4	3	0	430
127	Ruby	6	3	0	185
128	Nome	4	2	0	3,600
129	Big Lake	3	2	1	465
130	Nulato	2	2	0	450
131	Nightmute	3	2	0	243
132	Delta Junction	6	2	0	200
133	Whittier	3	2	0	180
134	Nondalton	2	2	0	180
135	Ukiah	2	2	0	156
136	Newhalen	2	2	0	80
137	Delta Jct.	2	2	0	60
138	Wales	3	2	1	0
139	Skagway	4	2	0	0
140	Valdez	1	1	0	2,500
141	Chevak	2	1	0	938
142	Pilot Station	1	1	0	580
143	Trapper Creek	2	1	0	500
144	Clear	5	1	0	307
145	Manokotak	1	1	0	293
146	Nanwalek	1	1	0	231
147	Napaskiak	2	1	0	200
148	Grayling	1	1	0	195
149	Koliganek	1	1	0	167
150	Nikiski	1	1	1	150
151	Tanacross	1	1	0	108
152	Eagle	3	1	0	92
153	Beaver	1	1	0	80
154	Manley Hot Springs	1	1	0	65
155	Girdwood	1	1	0	60
156	Egegik	1	1	0	60
157	Sutton	1	1	0	60
158	Eagle River	1	1	0	50
159	Sterling	1	1	0	33
160	Saint George	1	1	0	0
161	Dillingham	4	0	0	850
162	Alakanuk	1	0	0	570
163	New Stuyahok	0	0	0	566
164	Kongiganak	1	0	0	547
165	Salcha	0	0	0	500
166	Chefornak	1	0	0	454
167	Nenana	2	0	0	436
168	Glennallen	0	0	0	360
169	Tuntutuliak	0	0	0	350
170	Akiak	0	0	0	346
171	Napakiak	1	0	0	330
172	Amautluak	0	0	0	311
173	Marshall	0	0	0	308
174	Ambler	0	0	0	258
175	Old Harbor	0	0	0	231
176	Minto	1	0	0	170
177	Tok	0	0	0	150
178	Crooked Creek	0	0	0	147
179	Chuathbaluk	1	0	0	123
180	Anvik	0	0	0	96
181	Twin Hills	1	0	0	87
182	North Pole	0	0	0	72
183	Shageluk	0	0	0	60
184	South Naknek	0	0	0	60
185	Chignik Lake	0	0	0	60
186	Clarks Point	0	0	0	48
187	Platinum	0	0	0	43

Recommended Filtration for Alaska

Based on the most common contaminants found across Alaska (Total trihalomethanes (TTHMs), Chloroform, Bromodichloromethane), 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 Alaska 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 Alaska tap water safe to drink?

Water quality varies significantly across Alaska. Of the 187 cities analyzed, the average city has 5.2 contaminants above EWG health guidelines. The best water quality was found in Dillingham. We recommend checking your specific city's report for detailed information.

What city has the best water in Alaska?

Based on our analysis, Dillingham has the fewest contaminants above EWG health guidelines in Alaska, with 0 above guideline levels.

What city has the worst water in Alaska?

Based on our analysis, Fairbanks has the most contaminants above EWG health guidelines in Alaska, with 13 above guideline levels.

What's the best water filter for Alaska residents?

For most Alaska 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.

Alaska Water Quality Report (2026)