Clark County, Illinois
7 ZIP codes · Avg score 75/100 · Grade B
ZipCheckup grade for Clark County: B.
This ZIP has a few items worth a quick check.
Looking at the composite Home Safety Score, Clark County comes out in the A-B range, and the reports for its 7 ZIP codes show which data sit behind that result.
How Clark County Compares
How Clark County Compares
Clark County scores 7 points above the Illinois state average (68/100) and 2 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Clark County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 10.3%, diabetes 12%)
Modeled additional annual cost estimate per homeowner: $776, largest modeled factor: Energy Code Gap
67% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $776
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,704 housing units in Clark 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 Clark County
Modeled remediation costs in Clark County can be compared with the median property value; actual costs vary by property.
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 Clark County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Clark County ZIP codes
5 community water systems mapped to Clark County ZIP codes; EPA may list more systems serving the county.
- C
- B
- C
- C
- C
Systems with the most violations in Clark County
5 water systems with violations in EPA records.
- C
- C
- B
- C
- C
All ZIP Codes in Clark County
7 ZIP codes tracked in Clark County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62441 | Marshall | 81 | B | 3 | $140K |
| 2 | 62420 | Casey | 69 | C | 31 (1 health) | $122K |
| 3 | 62423 | Dennison | — | — | $148K | |
| 4 | 62442 | Martinsville | — | — | 5 (1 health) | $85K |
| 5 | 62474 | Westfield | — | — | $85K | |
| 6 | 62477 | West Union | — | — | $152K | |
| 7 | 62478 | West York | — | — | 24 | $132K |
Recommended Buyer Guides for Clark County
When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.
- Best Lead Paint Test Kits — 67% of homes built before 1980
Deep Dive Reports
Detailed analysis for Clark County, Illinois
Overview
Clark County in Illinois covers 7 tracked ZIP records with an average Home Safety Score of B (75/100) across 2 scored records.
4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
← Back to Illinois Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.