WaterQ
Colorado State Report All States
Official Status: March 2026

Is Highlands Ranch tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Highlands Ranch scores 98/100.

Safety Score
98
out of 100

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Highlands Ranch

Colorado

View Colorado state report Data updated: Mar 2026

Is Highlands Ranch tap water safe to drink?

Mostly yes — Highlands Ranch scores 98/100. This report aggregates EPA drinking water data across 1 local system in Highlands Ranch. We found 13 total violations (1 unresolved).

Real-Time Environment

Live: 11:00 AM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Highlands Ranch.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Highlands Ranch?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Filtration technologies matched to Highlands Ranch contaminant records.

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Baby Formula Safety

Guidance on preparing infant formula using municipal tap water in Highlands Ranch.

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Homebuyer's Perspective

Municipal water quality in Highlands Ranch directly influences pipe corrosion rates and home filtration needs. The high safety score (98/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Compliance Record for Highlands Ranch

13
Violations (5yr)
1
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Highlands Ranch.

Frequently Asked Questions

Is Highlands Ranch tap water safe to drink?

Mostly yes — Highlands Ranch scores 98/100.

How many water systems serve Highlands Ranch?

Highlands Ranch is served by 1 public water system in our latest EPA-backed dataset.

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

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

What is the water quality score for Highlands Ranch?

The water quality score for Highlands Ranch is 98 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.

What are the top contaminants in Highlands Ranch?

The top contaminants detected in Highlands Ranch include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
98/100
Grade
A
Water Systems
1
Population
103,444

Highlands Ranch Water Quality Summary

Highlands Ranch, CO receives a water quality score of 98/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Highlands Ranch's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.

Highlands Ranch's score of 98 is 16 points above the Colorado state average of 82, and above the nationwide average of roughly 78/100 across all U.S. states.

Those relocating to the mid-size city of Highlands Ranch can be highly reassured by the outstanding caliber of the local drinking water. Sourced from high-elevation water in the Mountain West, the supply starts from a position of natural clarity. Even with the region's historic hardrock mining legacy, the quality of the water delivered to homes remains exemplary. For residents of this Colorado community, this means enjoying clean, reliable tap water day in and day out.

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

Key Contaminants

Lead (90th percentile)
0.002 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Highlands Ranch (1)

Related

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