Hardin County, Illinois
5 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Recent monitoring in Hardin County's 5 ZIP codes shows middle-tier safety — some systems are clean; others have logged EPA violations.
How Hardin County Compares
How Hardin County Compares
Hardin County scores 4 points above the Illinois state average (61/100) and 3 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Hardin County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.7 (asthma 10.5%, diabetes 14.7%)
Estimated additional annual cost per homeowner: $704, driven primarily by energy_code_gap
Infrastructure: 0.41% avg pipe failure probability, 50% of ZIPs at high risk
65.8% 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: $704
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,221 housing units in Hardin 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 Hardin County
Remediation costs are relatively manageable for most homeowners in Hardin 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 Hardin 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 Hardin County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Il American-rosiclare | 1,387 | 1 |
| 2 | Cave-in-rock | 228 | 0 |
| 3 | Elizabethtown | 220 | 0 |
All ZIP Codes in Hardin County
5 ZIP codes tracked in Hardin County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62919 | Cave In Rock | 83 | B | 0 | $148K |
| 2 | 62982 | Rosiclare | 82 | B | 1 (1 health) | $59K |
| 3 | 62931 | Elizabethtown | 53 | D | 0 | $91K |
| 4 | 62947 | Herod | 53 | D | 0 | $172K |
| 5 | 62955 | Karbers Ridge | 53 | D | 0 | — |
Recommended Buyer Guides for Hardin County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 65.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Hardin County, Illinois
Overview
Hardin County in Illinois covers 5 ZIP codes with an average Home Safety Score of C (65/100).
1 of 5 ZIP codes have recorded EPA violations. 1 health-based violation 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.