Erie County, Ohio
14 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-06-03
Across Erie County, EPA compliance data for 14 ZIP codes sits at a moderate level — not alarming, but not uniformly clean either.
How Erie County Compares
How Erie County Compares
Erie County scores 9 points above the Ohio state average (60/100) and 1 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Erie County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.9 (asthma 10.8%, diabetes 14.2%)
Estimated additional annual cost per homeowner: $1,994, driven primarily by flood
Infrastructure: 0.38% avg pipe failure probability, 38% of ZIPs at high risk
69.5% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,994
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
48,815 housing units in Erie County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Erie County
Remediation costs are relatively manageable for most homeowners in Erie County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Erie County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Erie County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Ross County Water Company Inc. | 35,345 | 9 |
| 2 | Washington Court House Public Water System | 14,100 | 9 |
| 3 | Williamsport Village Public Water System | 1,038 | 9 |
| 4 | Darbyville Village Public Water System | 293 | 9 |
| 5 | Plumwood Mobile Home Park | 48 | 9 |
18 total water systems serve Erie County.
All ZIP Codes in Erie County
14 ZIP codes tracked in Erie County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 43438 | Kelleys Island | 83 | B | 1 | $333K |
| 2 | 44816 | Birmingham | 83 | B | 1 | — |
| 3 | 44846 | Milan | 83 | B | 0 | $235K |
| 4 | 44871 | Sandusky | 83 | B | 0 | — |
| 5 | 43164 | Williamsport | 81 | B | 9 (2 health) | $189K |
| 6 | 44839 | Huron | 69 | C | 2 | $235K |
| 7 | 44089 | Vermilion | 68 | C | 1 | $198K |
| 8 | 44870 | Sandusky | 68 | C | 0 | $149K |
| 9 | 43436 | Isle Saint George | 63 | C | 0 | — |
| 10 | 44814 | Berlin Heights | 63 | C | 0 | $231K |
| 11 | 44824 | Castalia | 63 | C | 0 | $176K |
| 12 | 43456 | Put In Bay | 55 | C | 0 | $498K |
| 13 | 43440 | Lakeside Marblehead | 50 | D | 0 | $275K |
| 14 | 43446 | Middle Bass | 50 | D | 0 | — |
Recommended Buyer Guides for Erie County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 69.5% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Erie County, Ohio
Overview
Erie County in Ohio covers 14 ZIP codes with an average Home Safety Score of C (69/100).
5 of 14 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.
← Back to Ohio water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.