Fayette County, Illinois
8 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-03
In current tracking cycles, Fayette County — spanning 8 ZIP codes — records above-average water quality outcomes; the county's compliance history over recent years shows few departures from federal standards.
How Fayette County Compares
How Fayette County Compares
Fayette County scores 9 points above the Illinois state average (61/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Fayette County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.5 (asthma 10.4%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $810, driven primarily by energy_code_gap
Infrastructure: 0.451% avg pipe failure probability, 71% of ZIPs at high risk
68% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↓ Improving trendEPA violation counts by year across Fayette County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 4 violations. Past 5 years: 10 total (10 health-based). Health-based violations are declining versus the prior 2-year window.
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: $810
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
8,902 housing units in Fayette 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 Fayette County
Remediation costs are relatively manageable for most homeowners in Fayette 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 Fayette 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 Fayette County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Ej Water Cooperative | 29,720 | 26 |
| 2 | VANDALIA | 7,616 | 9 |
| 3 | Vandalia Correctional Center | 1,500 | 9 |
| 4 | Kaskaskia Springs Water Company | 1 | 9 |
| 5 | Fayette Water Company | 5,608 | 8 |
14 total water systems serve Fayette County.
All ZIP Codes in Fayette County
8 ZIP codes tracked in Fayette County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62838 | Farina | 83 | B | 1 | $128K |
| 2 | 62471 | Vandalia | 82 | B | 9 (1 health) | $120K |
| 3 | 62880 | Saint Peter | 81 | B | 1 | $128K |
| 4 | 62262 | Mulberry Grove | 72 | B | 4 (3 health) | $122K |
| 5 | 62418 | Brownstown | 71 | B | 8 (1 health) | $133K |
| 6 | 62080 | Ramsey | 62 | C | 7 (2 health) | $85K |
| 7 | 62458 | Saint Elmo | 58 | C | 0 | $98K |
| 8 | 62247 | Hagarstown | 53 | D | 0 | — |
Recommended Buyer Guides for Fayette County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 68% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Fayette County, Illinois
Overview
Fayette County in Illinois covers 8 ZIP codes with an average Home Safety Score of B (70/100).
6 of 8 ZIP codes have recorded EPA violations. 7 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.