Colorado
Water Quality Report
82 Good
Average Score
82/100
Water Systems
327
Population
7.0M
Violations
719 57 unresolved
Score Distribution
120 A
33 B
10 C
3 D
10 F
Top Contaminant Violations
| Contaminant | Violations |
|---|---|
| Copper (90th percentile) | 2 |
Lowest Scoring Water Systems
0
Lookout Mountain Wd F
CO0110026 Wheat Ridge, CO 1,378 served
0
Homestead Wc F
CO0130050 Evergreen, CO 1,000 served
5
Steamboat Ii Md F
CO0154724 Steamboat Springs, CO 1,450 served
9
Indian Hills Wd F
CO0130065 Lakewood, CO 1,300 served
10
Ymca Rockies Wind River F
CO0135883 Estes Park, CO 3,730 served
Counties in Colorado
Cities in Colorado
View all 186 cities →Popular City Comparisons in Colorado
Quickly compare major cities in Colorado by water quality score and grade.
Frequently Asked Questions
Is tap water in Colorado safe to drink?
Colorado has an average WaterQ score of 82/100 across 327 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 Colorado?
WaterQ currently tracks 327 public water systems in Colorado.
Where can I compare cities in Colorado?
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.