Jersey County, Illinois
9 ZIP codes · Avg score 56/100 · Grade C · Updated 2026-06-03
Water systems across Jersey County's 9 ZIP codes produce average compliance results overall — pockets with documented violations exist, and the variation between areas makes ZIP-level lookup the most useful tool for residents here.
How Jersey County Compares
How Jersey County Compares
Jersey County scores 5 points below the Illinois state average (61/100) and 12 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Jersey County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.7 (asthma 10.3%, diabetes 11.7%)
Estimated additional annual cost per homeowner: $2,366, driven primarily by flood
Infrastructure: 0.416% avg pipe failure probability, 56% of ZIPs at high risk
68.6% 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: $2,366
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
17,529 housing units in Jersey 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 Jersey County
Remediation costs are relatively manageable for most homeowners in Jersey 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 Jersey 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 Jersey County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Il American-alton | 46,127 | 20 |
| 2 | JERSEY RWC | 12,750 | 15 |
| 3 | Brighton | 5,041 | 15 |
| 4 | Fosterburg Pwd | 7,940 | 13 |
| 5 | Il American-champaign | 150,000 | 13 |
15 total water systems serve Jersey County.
All ZIP Codes in Jersey County
9 ZIP codes tracked in Jersey County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62063 | Medora | 70 | B | 0 | $119K |
| 2 | 60963 | Rossville | 67 | C | 4 | $100K |
| 3 | 62077 | Panama | 66 | C | 6 (1 health) | $61K |
| 4 | 60203 | Evanston | 64 | C | 0 | $469K |
| 5 | 62052 | Jerseyville | 59 | C | 2 | $156K |
| 6 | 62035 | Godfrey | 52 | D | 13 (3 health) | $180K |
| 7 | 62031 | Fieldon | 48 | D | 5 | $128K |
| 8 | 62022 | Dow | 45 | D | 0 | $190K |
| 9 | 62037 | Grafton | 35 | F | 0 | $223K |
Recommended Buyer Guides for Jersey County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 68.6% 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
- 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 Jersey County, Illinois
Overview
Jersey County in Illinois covers 9 ZIP codes with an average Home Safety Score of C (56/100).
5 of 9 ZIP codes have recorded EPA violations. 4 health-based violations have been documented.
← Back to Illinois 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.