Harrison County, Ohio
21 ZIP codes · Avg score 49/100 · Grade D · Updated 2026-06-03
Spanning 21 ZIP codes, Harrison County carries a low water safety grade — health-based violations appear in a significant share of areas.
How Harrison County Compares
How Harrison County Compares
Harrison County scores 11 points below the Ohio state average (60/100) and 19 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Harrison County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 11.3%, diabetes 15.1%)
Estimated additional annual cost per homeowner: $1,227, driven primarily by energy_code_gap
Infrastructure: 0.414% avg pipe failure probability, 71% of ZIPs at high risk
72.4% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Harrison County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 13 violations. Past 5 years: 21 total (21 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $1,227
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
12,560 housing units in Harrison 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 Harrison County
Remediation costs are relatively manageable for most homeowners in Harrison 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 Harrison 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 Harrison County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | JEWETT VILLAGE | 650 | 19 |
| 2 | HOPEDALE VILLAGE PWS | 984 | 19 |
| 3 | Freeport Village Public Water System | 400 | 10 |
| 4 | TRI-COUNTY WATER AUTHORITY | 2,370 | 9 |
| 5 | Cadiz Village Public Water System | 3,353 | 7 |
17 total water systems serve Harrison County.
All ZIP Codes in Harrison County
21 ZIP codes tracked in Harrison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 43988 | Scio | 66 | C | 3 (1 health) | $120K |
| 2 | 43974 | Harrisville | 64 | C | 2 | $61K |
| 3 | 43981 | New Athens | 62 | C | 3 | $115K |
| 4 | 43973 | Freeport | 58 | C | 10 | $174K |
| 5 | 43986 | Jewett | 56 | C | 6 | $121K |
| 6 | 43976 | Hopedale | 54 | D | 6 (1 health) | $111K |
| 7 | 43910 | Bloomingdale | 53 | D | 0 | $161K |
| 8 | 43925 | East Springfield | 53 | D | 0 | — |
| 9 | 43939 | Mount Pleasant | 53 | D | 0 | $97K |
| 10 | 44675 | Sherrodsville | 53 | D | 0 | $162K |
| 11 | 44699 | Tippecanoe | 53 | D | 0 | $181K |
| 12 | 43907 | Cadiz | 49 | D | 7 (6 health) | $116K |
| 13 | 43937 | Maynard | 45 | D | 0 | — |
| 14 | 43837 | Port Washington | 40 | D | 0 | $116K |
| 15 | 43903 | Amsterdam | 40 | D | 0 | $142K |
| 16 | 43927 | Fairpoint | 40 | D | 0 | — |
| 17 | 43970 | Wolf Run | 40 | D | 0 | — |
| 18 | 43983 | Piedmont | 40 | D | 0 | $227K |
| 19 | 43984 | New Rumley | 40 | D | 0 | — |
| 20 | 44639 | Leesville | 40 | D | 0 | $71K |
| 21 | 44693 | Deersville | 40 | D | 0 | $98K |
Recommended Buyer Guides for Harrison County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 72.4% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Harrison County, Ohio
Overview
Harrison County in Ohio covers 21 ZIP codes with an average Home Safety Score of D (49/100).
7 of 21 ZIP codes have recorded EPA violations. 8 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.
What You Can Do
Harrison County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
72.4% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.