Idaho
Water Quality Report
84 Good
Average Score
84/100
Water Systems
126
Population
1.5M
Violations
0 all resolved
Score Distribution
1 A
0 B
1 C
0 D
0 F
Top Contaminant Violations
Lowest Scoring Water Systems
Counties in Idaho
Cities in Idaho
View all 90 cities →Popular City Comparisons in Idaho
Quickly compare major cities in Idaho by water quality score and grade.
Frequently Asked Questions
Is tap water in Idaho safe to drink?
Idaho has an average WaterQ score of 84/100 across 126 public water systems. Safety can vary by city and system, so check your local report for recent violations and contaminants.
How many water systems are in Idaho?
WaterQ currently tracks 126 public water systems in Idaho.
Where can I compare cities in Idaho?
Use the city list below to open detailed reports, or visit the compare tool to benchmark two cities side-by-side on score, grade, and system coverage.