Knox County, Illinois
17 ZIP codes · Home Safety Score unavailable · 0 of 17 tracked ZIP records scored · Updated
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Knox County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.7 (asthma 10.6%, diabetes 13.5%)
Estimated additional annual cost per homeowner: $1,308, driven primarily by energy_code_gap
82.9% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
↓ Improving trendEPA violation counts by year across Knox County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 3 violations. Past 5 years: 6 total (6 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,308
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
23,838 housing units in Knox 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 Knox County
Remediation costs are relatively manageable for most homeowners in Knox 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 Knox County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Knox County
5 community water systems serving Knox County.
Systems with the most violations in Knox County
3 water systems with recorded EPA violations.
All ZIP Codes in Knox County
17 ZIP codes tracked in Knox County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 61401 | Galesburg | — | — | 3 | $95K |
| 2 | 61402 | Galesburg | — | — | — | |
| 3 | 61410 | Abingdon | — | — | 3 | $93K |
| 4 | 61414 | Altona | — | — | $122K | |
| 5 | 61428 | Dahinda | — | — | 0 | $250K |
| 6 | 61430 | East Galesburg | — | — | 1 | $106K |
| 7 | 61436 | Gilson | — | — | 0 | $187K |
| 8 | 61439 | Henderson | — | — | $98K | |
| 9 | 61448 | Knoxville | — | — | 1 | $140K |
| 10 | 61458 | Maquon | — | — | $89K | |
| 11 | 61467 | Oneida | — | — | 0 | $133K |
| 12 | 61472 | Rio | — | — | 0 | $149K |
| 13 | 61474 | Saint Augustine | — | — | 2 | $78K |
| 14 | 61485 | Victoria | — | — | 0 | $101K |
| 15 | 61488 | Wataga | — | — | 0 | $125K |
| 16 | 61489 | Williamsfield | — | — | $131K | |
| 17 | 61572 | Yates City | — | — | $95K |
Recommended Buyer Guides for Knox County
Designed to find the guide that fits the county, not the other way around - the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Lead Paint Test Kits — 82.9% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Knox County, Illinois
Overview
Knox County in Illinois covers 17 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
5 of 11 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← 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.