Greene County, Illinois
10 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Within Greene County, safety data across 10 ZIP codes suggests a fair but uneven system — violations are present and worth checking at the ZIP level.
How Greene County Compares
How Greene County Compares
Greene County scores 2 points below the Illinois state average (61/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Greene County, Illinois
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 10.7%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $1,324, driven primarily by energy_code_gap
Infrastructure: 0.504% avg pipe failure probability, 100% of ZIPs at high risk
82.5% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Greene County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 2 violations. Past 5 years: 4 total (4 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: $1,324
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,097 housing units in Greene 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 Greene County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Greene 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 Greene County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Carrollton | 2,680 | 15 |
| 2 | Hillview | 130 | 11 |
| 3 | White Hall | 2,313 | 11 |
| 4 | Greenfield | 1,480 | 10 |
| 5 | Roodhouse | 1,753 | 7 |
12 total water systems serve Greene County.
All ZIP Codes in Greene County
10 ZIP codes tracked in Greene County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62044 | Greenfield | 68 | C | 10 (2 health) | $107K |
| 2 | 62081 | Rockbridge | 66 | C | 5 (1 health) | $86K |
| 3 | 62016 | Carrollton | 65 | C | 5 | $117K |
| 4 | 62027 | Eldred | 64 | C | 3 | $108K |
| 5 | 62092 | White Hall | 61 | C | 11 (1 health) | $79K |
| 6 | 62082 | Roodhouse | 59 | C | 7 | $75K |
| 7 | 62054 | Kane | 58 | C | 0 | $88K |
| 8 | 62050 | Hillview | 54 | D | 4 | $105K |
| 9 | 62078 | Patterson | 54 | D | 2 | — |
| 10 | 62098 | Wrights | 40 | D | 0 | — |
Recommended Buyer Guides for Greene 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 Lead Paint Test Kits — 82.5% 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 Greene County, Illinois
Overview
Greene County in Illinois covers 10 ZIP codes with an average Home Safety Score of C (59/100).
8 of 10 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.