WaterQ
Oklahoma State Report All States
Official Status: March 2026

Is Oklahoma City tap water safe to drink?

⚠ Caution Advised
C

Use extra caution — Oklahoma City scores 62/100.

Safety Score
62
out of 100

Still not sure if you need a filter in Oklahoma City?

Read Decision Guide →

Oklahoma City

Oklahoma

View Oklahoma state report Data updated: Mar 2026

Is Oklahoma City tap water safe to drink?

Use extra caution — Oklahoma City scores 62/100. This report aggregates EPA drinking water data across 7 local systems in Oklahoma City. We found 1094 total violations (129 unresolved).

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Oklahoma City?

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 Oklahoma City? See our analysis.

Baby Formula Safety

Is Oklahoma City tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Oklahoma City, water quality is a key factor in long-term property maintenance. With a score of 62/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Requires Mitigation

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 Oklahoma City

1094
Violations (5yr)
129
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is Oklahoma City tap water safe to drink?

Use extra caution — Oklahoma City scores 62/100.

How many water systems serve Oklahoma City?

Oklahoma City is served by 7 public water systems in our latest EPA-backed dataset.

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

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

What is the water quality score for Oklahoma City?

The water quality score for Oklahoma City is 62 out of 100, based on EPA contaminant data, violation history, and testing results across the 7 systems serving the city.

What are the top contaminants in Oklahoma City?

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

Water Quality Score
62/100
Grade
C
Water Systems
7
Population
681,286

Oklahoma City Water Quality Summary

Oklahoma City, OK receives a water quality score of 62/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 7 public water systems serving the area.

Oklahoma City'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.

Oklahoma City's score of 62 is 24 points above the Oklahoma state average of 38, and below the nationwide average of roughly 78/100 across all U.S. states.

Prospective homebuyers and residents of Oklahoma City, Oklahoma, should note that this large city's drinking water is distributed through eight distinct water systems. The source water originates in the south-central plains, a region marked by agricultural activity and a legacy of the oil and gas industry. While the municipal supply earns a solid, above-average grade, the city's moderate overall score highlights the importance of staying informed about localized water quality reports.

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

Key Contaminants

Lead (90th percentile)
0.0114 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Oklahoma City (7)

Related

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