COUNTY REPORT IL

Hamilton County, Illinois

6 ZIP codes · Avg score 79/100 · Grade B

ZipCheckup grade for Hamilton County: B.

This ZIP has a few items worth a quick check.

In Hamilton County, where this site follows 6 ZIP codes, the composite grade sits in the upper band.

How Hamilton County Compares

Hamilton County79/100
Illinois avg68/100
National avg73/100

How Hamilton County Compares

B
County Grade
79/100
Avg Safety Score
6
ZIP Codes
2
Water Systems

Hamilton County scores 11 points above the Illinois state average (68/100) and 6 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

B
County Grade
79
Avg Safety Score
6
ZIP Codes
Best ZIP: 62817 (83/100)
Lowest ZIP: 62859 (71/100)
$102K
Median Home Value
$575
Avg Remediation (0.56% of home value)

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.

A B C D F

Key Risk Factors

Health risk index: 15.3 (asthma 10.7%, diabetes 13.9%)

Modeled additional annual cost estimate per homeowner: $520, largest modeled factor: Energy Code Gap

60% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.7% (national: 8.9%)
Diabetes 13.9% (national: 10.5%)
Obesity 40% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1970
Median Build Year
60%
Pre-1980 Housing
46/100
Infrastructure Stress Indicator
67%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

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: $520

Energy Code Gap $495/yr
Water / Lead $50/yr

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

Pre-1940 14%
1940–1959 26%
1960–1979 20%
1980–1999 25%
2000+ 15%

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

$102K
Median Home Value
$575
Est. Remediation Cost
0.6%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Hamilton 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 Hamilton County residents

Asthma 10.7% (US avg: 8.9%)
Diabetes 13.9% (US avg: 11%)
Obesity 40% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Hamilton County ZIP codes

2 community water systems mapped to Hamilton County ZIP codes; EPA may list more systems serving the county.

Systems with the most violations in Hamilton County

2 water systems with violations in EPA records.

All ZIP Codes in Hamilton County

6 ZIP codes tracked in Hamilton County.

# ZIP Code City Safety Score Grade Violations Home Value
1 62817 Broughton 83 B 2 —
2 62860 Macedonia 83 B 2 $115K
3 62859 Mc Leansboro 71 B 16 (1 health) $91K
4 62828 Dahlgren — — $113K
5 62829 Dale — — —
6 62887 Springerton — — $39K

Recommended Buyer Guides for Hamilton County

Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.

Overview

Hamilton County in Illinois covers 6 tracked ZIP records with an average Home Safety Score of B (79/100) across 3 scored records.

3 of 3 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

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Hamilton County?
Hamilton County receives an average Home Safety grade of B from its scored ZIP records (6 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Hamilton County?
We map 2 public water systems to 6 ZIP codes in our data for Hamilton County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Hamilton County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Hamilton County is energy code gap. Across all modeled risk factors, the estimated average additional annual cost is $520 per homeowner; actual costs vary by home.
How old are homes in Hamilton County?
The median home build year in Hamilton County is 1970. 60% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Hamilton County compare to Illinois?
Hamilton County has an average Home Safety Score of 79/100 under model 4.0.0, which is at or above the Illinois state average of 68/100.

How to cite this page

APA ZipCheckup. (2026). Hamilton County, IL: HSS 79/100; 1 Health Violation. https://zipcheckup.com/county/illinois/hamilton/
BibTeX
@misc{zipcheckup-county-illinois-hamilton,
  author = {{ZipCheckup}},
  title  = {{Hamilton County, IL: HSS 79/100; 1 Health Violation}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/illinois/hamilton/}
}

Page version: October 2026.

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