Willoughby, OH Water Safety: 52/100 (2026)
2 ZIP codes · 2 water systems · Updated 2026-06-03
Willoughby, OH: water systems collectively below average — violations documented.
How Willoughby Compares
Data: EPA SDWIS Last verified: 2026-06-03
Willoughby Water: The Quick Version
- Estimated remediation: $1,000 per household.
- CDC health risk index: 13.87 — above typical levels.
Water Systems Serving Willoughby
At present, 2 utilities serve the bulk of Willoughby, OH's residential water connections out of 2 systems active in the area, spread across independent providers with separate infrastructure and compliance obligations.
Overview
We track water quality and home safety data for 2 ZIP codes in Willoughby, Ohio (population ~36,689), covering 2 community water systems serving approximately 152,879 people region-wide.
No EPA violations recorded across any ZIP codes in Willoughby — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Willoughby: D (52/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Willoughby water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Willoughby
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 2 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 44094 | D | AQUA OHIO - MENTOR | 74,500 |
| 44096 | D | AQUA OHIO - MENTOR | 74,500 |
All ZIP Codes in Willoughby
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Willoughby
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Willoughby: Remediation Cost in Perspective
The household financial picture for Willoughby homeowners is proportionally favorable — addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.
Remediation costs in Willoughby are relatively low compared to home values. The $400–$1,700 estimated range is a small fraction of median property value. Home values are 35% above the Ohio average.
Climate-Related Water Risk for Willoughby
Within the NFIP's national dataset, Willoughby falls in moderate-exposure territory — 191 documented incidents spanning multiple decades, with 50% of local ZIP codes sitting inside FEMA flood boundaries. That combination warrants inclusion in any thorough local water quality review.
Willoughby has a moderate flood history with 191 FEMA claims averaging $11,595 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,000</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Willoughby
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Willoughby, OH