Mason City
Is Mason City tap water safe to drink?
Mostly yes — Mason City scores 94/100. This report aggregates EPA drinking water data across 0 local systems in Mason City. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 04:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Mason City.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Mason City?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Wondering if Mason City tap water needs filtering? We break it down.
Baby Formula Safety
Mixing baby formula with Mason City tap water? Read this first.
Homebuyer's Perspective
If you're house-hunting in Mason City, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (94/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Current records show no major contaminant spikes, making Mason City a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Mason City
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Mason City.
Frequently Asked Questions
Is Mason City tap water safe to drink?
Mostly yes — Mason City scores 94/100.
How many water systems serve Mason City?
Mason City is served by 0 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Mason City?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Mason City.
What is the water quality score for Mason City?
The water quality score for Mason City is 94 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Mason City?
Current contaminant data for Mason City is being updated. Check back soon or search your specific address for the latest results.
Mason City Water Quality Summary
Mason City, IL receives a water quality score of 94/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Mason City'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.
Mason City's score of 94 is 25 points above the Illinois state average of 69, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Illinois water quality rankings report →
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Water Systems Serving Mason City (0)
Water system data coming soon for Mason City.
Check Your Specific Address
Water quality can vary by neighborhood in Mason City.
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