Wyoming
Water Quality Report
84 Good
Average Score
84/100
Water Systems
74
Population
492,916
Violations
102 32 unresolved
Score Distribution
17 A
2 B
1 C
1 D
1 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Copper (90th percentile) | 1 |
Lowest Scoring Water Systems
0
Jackson, Town Of F
WY5600213 Jackson, WY 24,760 served
53
Ynp-Old Faithful D
WY5680085 Yellowstone, WY 7,675 served
66
Ynp - Lake Village C
WY5680079 Yellowstone, WY 5,925 served
86
Sheridan, City Of B
WY5600052 Sheridan, WY 22,700 served
87
Vista West Water Company B
WY5600069 Casper, WY 1,600 served
Counties in Wyoming
Cities in Wyoming
View all 55 cities →Popular City Comparisons in Wyoming
Quickly compare major cities in Wyoming by water quality score and grade.
Frequently Asked Questions
Is tap water in Wyoming safe to drink?
Wyoming has an average WaterQ score of 84/100 across 74 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 Wyoming?
WaterQ currently tracks 74 public water systems in Wyoming.
Where can I compare cities in Wyoming?
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.