COUNTY REPORT IL

Madison County, Illinois

28 ZIP codes · Avg score 74/100 · Grade B · Updated

ZipCheckup grade for Madison County: B.

This ZIP looks solid, with a few items worth a quick check.

In recent assessments, Madison County's 28 ZIP codes record strong, consistent water safety outcomes.

How Madison County Compares

Madison County74/100
Illinois avg68/100
National avg73/100

How Madison County Compares

B
County Grade
74/100
Avg Safety Score
28
ZIP Codes
31
Water Systems

Madison County scores 6 points above the Illinois state average (68/100) and 1 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 Last verified:

B
County Grade
74
Avg Safety Score
28
ZIP Codes
Best ZIP: 62061 (83/100)
Lowest ZIP: 62234 (50/100)
$170K
Median Home Value
$2,234
Avg Remediation (131% of home value)

ZIP Code Risk Map

Water Quality Map: Madison 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: 13.2 (asthma 10.5%, diabetes 11.2%)

Estimated additional annual cost per homeowner: $1,787, driven primarily by flood

69.1% of homes built before 1978 (lead paint era)

Violation History (2023–2025)

→ Stable trend

EPA violation counts by year across Madison County water systems. Health-based shown in red, total in blue.

2023
6 (6 health)
2024
9 (9 health)
2025
7 (7 health)

Peak year: 2024 with 9 violations. Past 5 years: 22 total (22 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 11.2% (national: 10.5%)
Obesity 38.7% (national: 32.4%)

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

Infrastructure Overview

1964
Median Build Year
69.1%
Pre-1978 Housing
47/100
Infrastructure Stress Indicator
68%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

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: $1,787

Flood $965/yr
Energy Code Gap $470/yr
Water / Lead $263/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

113,717 housing units in Madison County

Pre-1940 15%
1940–1959 22%
1960–1979 25%
1980–1999 21%
2000+ 16%

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 Madison County

$170K
Median Home Value
$2,234
Est. Remediation Cost
1.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Madison 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 Madison County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 11.2% (US avg: 11%)
Obesity 38.7% (US avg: 32.4%)

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

Water systems serving Madison County

8 community water systems serving Madison County.

Show all 8 water systems
  • Troy
    Serves ~16,962 people 1 violation
    B
  • Bethalto
    Serves ~15,210 people 2 violations
    B

31 total water systems serve Madison County.

Systems with the most violations in Madison County

5 water systems with recorded EPA violations.

All ZIP Codes in Madison County

28 ZIP codes tracked in Madison County.

# ZIP Code City Safety Score Grade Violations Home Value
1 62061 Marine 83 B 1 $186K
2 62090 Venice 83 B 0 $50K
3 62021 Dorsey 82 B 4 (1 health) $278K
4 62060 Madison 82 B 3 $54K
5 62067 Moro 82 B 6 (1 health) $221K
6 62002 Alton 81 B 10 $114K
7 62018 Cottage Hills 81 B 6 $78K
8 62026 Edwardsville 81 B 5
9 62062 Maryville 80 B 4 $250K
10 62095 Wood River 80 B 5 $107K
11 62034 Glen Carbon 79 B 7 $274K
12 62294 Troy 79 B 5 $256K
13 61937 Lovington 77 B 10 (8 health) $99K
14 62074 New Douglas 75 B 15 (3 health) $264K
15 62249 Highland 75 B 12 (1 health) $220K
16 62281 Saint Jacob 74 B 10 (1 health) $288K
17 62040 Granite City 67 C 43 (1 health) $107K
18 62024 East Alton 65 C 3 $113K
19 62097 Worden 64 C 6 (1 health) $213K
20 62010 Bethalto 63 C 8 (1 health) $170K
21 62084 Roxana 56 C 31 $104K
22 62025 Edwardsville 54 D 36 (1 health) $296K
23 62234 Collinsville 50 D 23 (1 health) $162K
24 62006 Batchtown $208K
25 62046 Hamel $230K
26 62048 Hartford 31 $66K
27 62058 Livingston $102K
28 62087 South Roxana 23 $87K

Recommended Buyer Guides for Madison County

If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.

Overview

Madison County in Illinois covers 28 tracked ZIP records with an average Home Safety Score of B (74/100) across 23 scored records.

24 of 25 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 14 health-based violations 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 Madison County?
Madison County receives a grade of B, indicating generally safe tap water across its 28 ZIP codes.
How many water systems serve Madison County?
Madison County is served by 31 public water systems that supply drinking water to residents across 28 ZIP codes.
What is the biggest environmental risk in Madison County?
The primary environmental risk factor in Madison County is flood. This contributes to an estimated additional annual cost of $1,787 per homeowner.
How old are homes in Madison County?
The median home build year in Madison County is 1964. 69.1% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Madison County compare to Illinois?
Madison County has an average Home Safety Score of 74/100 under model 4.0.0, which is above the Illinois state average of 68/100.

How to cite this page

APA ZipCheckup. (2026). Madison County, IL: HSS 74/100; 14 Health Violations. https://zipcheckup.com/county/illinois/madison/
BibTeX
@misc{zipcheckup-county-illinois-madison,
  author = {{ZipCheckup}},
  title  = {{Madison County, IL: HSS 74/100; 14 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/illinois/madison/}
}

Page version: August 2026.

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