Watertown, OH Water Safety: 63/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Safe water is the norm across most of Watertown, OH — but documented violations push the city to the middle safety tier.
How Watertown Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Watertown Residents
- Estimated remediation: $2,200 per household.
- CDC health risk index: 15.58 — above typical levels.
Watertown's Water Providers
One utility dominates residential water service in Watertown, OH — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Watertown, Ohio, covering 1 community water system serving approximately 3,000 people.
No EPA violations recorded across any ZIP codes in Watertown — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Watertown: C (63/100)
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
Watertown water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Watertown
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 45787 | C | TRI-COUNTY RURAL W AND S DISTRICT | 3,000 |
All ZIP Codes in Watertown
- 45787 [C]
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.
Watertown Community Health Snapshot
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
Watertown: Flood History & Water Damage Risk
Flood history in Watertown spans 2 NFIP claims and 100% flood zone coverage — enough to place it in moderate-exposure territory where flood events are genuinely recurring rather than statistical outliers. That distinction matters for water quality assessment because the connection between flooding and water safety is not uniform across communities. In low-exposure areas, flooding rarely generates the conditions needed to compromise treatment or distribution infrastructure. In high-exposure areas, it can do so repeatedly. Moderate-exposure communities sit in between: flood events occur with enough frequency to make periodic infrastructure stress a reasonable concern, particularly for private well owners and residents in lower-elevation FEMA-designated zones.
Watertown has a moderate flood history with 2 FEMA claims averaging $32,519 per payout. 100% 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>$2,200</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 Watertown
- 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.
Deep Dive Reports
Detailed analysis for Watertown, OH