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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Compare water quality across 9 counties in Alaska
9 counties ranked by average water quality score
| Rank | County | Avg Score | Grade | Cities | Population | Score Range |
|---|---|---|---|---|---|---|
| 1 | Sitka County | 93 | A | 1 | 8,458 | 93 - 93 |
| 2 | Ketchikan Gateway County | 88 | A- | 1 | 8,192 | 88 - 88 |
| 3 | Bethel County | 83 | B+ | 1 | 6,758 | 83 - 83 |
| 4 | Kodiak Island County | 83 | B+ | 1 | 5,983 | 83 - 83 |
| 5 | Fairbanks North Star County | 81 | B+ | 1 | 32,515 | 81 - 81 |
| 6 | Matanuska-Susitna County | 79 | B | 2 | 17,828 | 72 - 86 |
| 7 | Anchorage County | 67 | C+ | 1 | 291,247 | 67 - 67 |
| 8 | Juneau County | 67 | C+ | 1 | 32,255 | 67 - 67 |
| 9 | Kenai Peninsula County | 56 | C- | 1 | 7,424 | 56 - 56 |
1 cities • 8,458 residents
1 cities • 8,192 residents
1 cities • 6,758 residents
1 cities • 5,983 residents
1 cities • 32,515 residents
2 cities • 17,828 residents
1 cities • 291,247 residents
1 cities • 32,255 residents
1 cities • 7,424 residents
Our county-level water quality analysis aggregates data from municipal water systems across Alaska. Each county's score represents the average water quality across all analyzed cities within that county, weighted by population served.
With 9 counties and 10 cities analyzed, this data helps residents understand regional water quality patterns in Alaska. County scores range from 56/100 to 93/100, reflecting the diversity of water sources and treatment infrastructure across the state.
Currently, 3 counties in Alaska have average scores below 70, indicating potential water quality concerns. Residents in these areas should review their city's specific report and consider water filtration options.