CITY REPORT IL

Illiopolis, IL: 1 Violation - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$108K
Median Home Value
$1,800
Est. Remediation (1.7% of home value)

Illiopolis Water: The Quick Version

  • Your city's water systems recorded 1 violation in the past 5 years.
  • Homes built before 1986: 86% - older plumbing may contain lead solder.
  • Estimated remediation: $1,800 per household.
  • CDC health risk index: 13.45 - above typical levels.

Water Systems Serving Illiopolis

Because residential water in Illiopolis, IL flows primarily through a single utility, infrastructure decisions, rate-setting, and EPA compliance are all managed within one organizational structure. Federal records show 1 system active in the area, but one provider dominates the service landscape for most homes and apartments.

Overview

We track home safety data for 1 ZIP code in Illiopolis, Illinois, covering 1 community water system serving approximately 1,342 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Illiopolis water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
62539 1 0 Harristown

All ZIP Codes in Illiopolis

Data Sources

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

CDC Health Data for Illiopolis

10.5%
Asthma (US: 9.8%)
11.9%
Diabetes (US: 10.4%)
16.3%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 11.9% ↑
Mental Health 16.3% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Illiopolis

Surface Water Treatment Rule 2 violations
Treatment Technique
Pathogens may not be adequately removed

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

How Old Is Illiopolis's Housing Stock?

1953
Median Build Year
86%
Built Before 1986
54%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 86% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Heavily weighted toward older construction, Illiopolis's housing stock carries a median build year of 1953. That profile puts a majority of homes in the era when lead-soldered copper plumbing was standard practice.

1953
Median Year Built
86%
Pre-1986 (Lead Paint Risk)
54%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (54%) 1970–1986 (32%) Post-1986 (14%)

Over half of homes in Illiopolis were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Illiopolis: Remediation Cost in Perspective

Middle of the range - Illiopolis homeowners face a remediation share that calls for real financial attention without reaching crisis territory.

Median Home Value
$108,300
Est. Remediation
$1,800
Remediation as % of home value 1.7%

Remediation costs are moderate relative to home values in Illiopolis. The estimated $1,100–$3,000 range is manageable for most homeowners but still worth budgeting for. Home values are 41% below the Illinois average.

Protecting Children from Lead in Illiopolis

86%
Homes Built Before 1986

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

When older housing represents 86% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Illiopolis address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

How many water violations does Illiopolis have?
Illiopolis water systems have a total of 1 EPA violation. Violations are tracked across 1 ZIP code.
How many water systems serve Illiopolis?
Illiopolis is served by 1 public water system across 1 ZIP code, serving approximately 1,342 people.
How much does it cost to fix water issues in Illiopolis?
Estimated remediation costs in Illiopolis average $1,800 per household, ranging from $1,100 to $3,000. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Illiopolis, IL

How to cite this page

APA ZipCheckup. (2026). Illiopolis, IL: 1 Violation - Home Safety Score unavailable. https://zipcheckup.com/cities/il/illiopolis/
BibTeX
@misc{zipcheckup-cities-il-illiopolis,
  author = {{ZipCheckup}},
  title  = {{Illiopolis, IL: 1 Violation - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/illiopolis/}
}

Page version: August 2026.

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