Jay County, Indiana
4 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Jay County's water quality grade reflects a middle-ground assessment — its 4 ZIP codes range from fully compliant to violation-flagged.
How Jay County Compares
How Jay County Compares
Jay County scores 1 points below the Indiana state average (60/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 16.2 (asthma 11.6%, diabetes 15%)
Estimated additional annual cost per homeowner: $900, driven primarily by flood
Infrastructure: 0.402% avg pipe failure probability, 50% of ZIPs at high risk
75% 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: $900
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,168 housing units in Jay 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 Jay County
Remediation costs are relatively manageable for most homeowners in Jay 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 Jay County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 3 systems in Jay County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Redkey Water Plant | 1,323 | 3 |
| 2 | Pennville Water Company | 706 | 1 |
| 3 | Portland Municipal Water Plant | 6,209 | 1 |
All ZIP Codes in Jay County
4 ZIP codes tracked in Jay County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 47369 | Pennville | 66 | C | 1 | $162K |
| 2 | 47371 | Portland | 65 | C | 1 | $116K |
| 3 | 47373 | Redkey | 65 | C | 2 | $86K |
| 4 | 47381 | Salamonia | 40 | D | 0 | $96K |
Recommended Buyer Guides for Jay County
Editorial-only picks, screened against the EPA detections on file.
- Best Lead Paint Test Kits — 75% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Jay County in Indiana covers 4 ZIP codes with an average Home Safety Score of C (59/100).
3 of 4 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Indiana 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.