Hamilton County, Illinois
6 ZIP codes · Avg score 64/100 · Grade C · Updated 2026-06-03
Current EPA records place Hamilton County in the middle tier for drinking water safety, with 6 ZIP codes showing a range of outcomes.
How Hamilton County Compares
How Hamilton County Compares
Hamilton County scores 3 points above the Illinois state average (61/100) and 4 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Hamilton County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.3 (asthma 10.7%, diabetes 13.9%)
Estimated additional annual cost per homeowner: $687, driven primarily by energy_code_gap
Infrastructure: 0.41% avg pipe failure probability, 33% of ZIPs at high risk
70.8% of homes built before 1978 (lead paint era)
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: $687
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
3,895 housing units in Hamilton 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 Hamilton County
Remediation costs are relatively manageable for most homeowners in Hamilton 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 Hamilton County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Hamilton County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Broughton Water District | 235 | 6 |
| 2 | Springerton | 176 | 5 |
| 3 | Macedonia | 155 | 2 |
| 4 | Dahlgren | 859 | 1 |
All ZIP Codes in Hamilton County
6 ZIP codes tracked in Hamilton County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 62828 | Dahlgren | 72 | B | 1 | $113K |
| 2 | 62860 | Macedonia | 71 | B | 2 | $115K |
| 3 | 62817 | Broughton | 68 | C | 6 | — |
| 4 | 62887 | Springerton | 67 | C | 5 (1 health) | $39K |
| 5 | 62829 | Dale | 53 | D | 0 | — |
| 6 | 62859 | Mc Leansboro | 53 | D | 0 | $91K |
Recommended Buyer Guides for Hamilton County
While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- Best Lead Paint Test Kits — 70.8% of homes built before 1978
Deep Dive Reports
Detailed analysis for Hamilton County, Illinois
Overview
Hamilton County in Illinois covers 6 ZIP codes with an average Home Safety Score of C (64/100).
4 of 6 ZIP codes have recorded EPA violations. 1 health-based violation 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.