WaterQ
Colorado State Report All States
Official Status: March 2026

Is Louisville tap water safe to drink?

⚠ Caution Advised
B

Generally acceptable, but review local hotspots — score 71/100.

Safety Score
71
out of 100

Still not sure if you need a filter in Louisville?

Read Decision Guide →

Louisville

Colorado

View Colorado state report Verified: Apr 2026

Is Louisville tap water safe to drink?

Generally acceptable, but review local hotspots — score 71/100. This report aggregates EPA drinking water data across 0 local systems in Louisville. We found 0 total violations (0 unresolved).

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Louisville?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Should you buy a water purifier in Louisville? See our analysis.

Baby Formula Safety

Is Louisville tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Louisville, water quality is a key factor in long-term property maintenance. With a score of 71/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Louisville a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Louisville

EPA Compliance & Violations 85/100
Contaminant Safety Margin 71%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Louisville tap water safe to drink?

Generally acceptable, but review local hotspots — score 71/100.

How many water systems serve Louisville?

Louisville is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Louisville?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Louisville.

What is the water quality score for Louisville?

The water quality score for Louisville is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Louisville?

Current contaminant data for Louisville is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
71/100
Grade
C
Water Systems
1
Population
20,975

Louisville Water Quality Summary

Louisville, CO receives a water quality score of 71/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Louisville's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Water Systems Serving Louisville (0)

Water system data coming soon for Louisville.

Related

Compare Louisville water quality: View all states · Contaminant library · How we score water quality