Rock Island County, Illinois
21 ZIP codes · Avg score 56/100 · Grade C · Updated
ZipCheckup grade for Rock Island County: C.
A mixed picture - some signals here are worth your attention.
Current EPA records place Rock Island County in the middle tier for drinking water safety, with 21 ZIP codes showing a range of outcomes.
How Rock Island County Compares
How Rock Island County Compares
Rock Island County scores 12 points below the Illinois state average (68/100) and 17 points below the national average (73/100).
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: Rock Island County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.9 (asthma 10.5%, diabetes 13.1%)
Estimated additional annual cost per homeowner: $2,242, driven primarily by flood
72.4% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↑ Worsening trendEPA violation counts by year across Rock Island County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 16 violations. Past 5 years: 24 total (24 health-based). Health-based violations are rising versus the prior 2-year window - worth closer monitoring.
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: $2,242
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
68,089 housing units in Rock Island 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 Rock Island County
Remediation costs are relatively manageable for most homeowners in Rock Island 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 Rock Island County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Rock Island County
8 community water systems serving Rock Island County.
- D
- C
- D
- D
- D
- C
Show all 8 water systems
- C
- D
18 total water systems serve Rock Island County.
Systems with the most violations in Rock Island County
5 water systems with recorded EPA violations.
- D
- D
- D
- C
All ZIP Codes in Rock Island County
21 ZIP codes tracked in Rock Island County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 61232 | Andalusia | 67 | C | 0 | $175K |
| 2 | 61284 | Taylor Ridge | 64 | C | 7 | $223K |
| 3 | 61201 | Rock Island | 62 | C | 9 | $118K |
| 4 | 61240 | Coal Valley | 56 | C | 14 (1 health) | $231K |
| 5 | 61264 | Milan | 52 | D | 21 (1 health) | $148K |
| 6 | 61244 | East Moline | 50 | D | 84 (7 health) | $141K |
| 7 | 61265 | Moline | 50 | D | 62 (2 health) | $142K |
| 8 | 61282 | Silvis | 50 | D | 72 (6 health) | $159K |
| 9 | 61235 | Atkinson | — | — | $132K | |
| 10 | 61236 | Barstow | — | — | 9 (1 health) | $119K |
| 11 | 61237 | Buffalo Prairie | — | — | — | |
| 12 | 61239 | Carbon Cliff | — | — | 53 (2 health) | $103K |
| 13 | 61242 | Cordova | — | — | 7 (1 health) | $219K |
| 14 | 61256 | Hampton | — | — | 7 | $183K |
| 15 | 61257 | Hillsdale | — | — | 5 | $116K |
| 16 | 61259 | Illinois City | — | — | $199K | |
| 17 | 61266 | Moline | — | — | — | |
| 18 | 61272 | New Boston | — | — | $131K | |
| 19 | 61275 | Port Byron | — | — | 5 | $236K |
| 20 | 61278 | Rapids City | — | — | $223K | |
| 21 | 61299 | Rock Island | — | — | — |
Recommended Buyer Guides for Rock Island County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 72.4% 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
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Rock Island County, Illinois
Overview
Rock Island County in Illinois covers 21 tracked ZIP records with an average Home Safety Score of C (56/100) across 8 scored records.
13 of 14 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 10 health-based violations 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.