COUNTY REPORT IL

Iroquois County, Illinois

23 ZIP codes · Home Safety Score unavailable · 0 of 23 tracked ZIP records scored · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:

Unavailable
0 of 23 tracked ZIP records scored
23
ZIP Codes
$105K
Median Home Value
$2,173
Avg Remediation (206% of home value)

ZIP Code Risk Map

Water Quality Map: Iroquois 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: 15.1 (asthma 10.5%, diabetes 13.9%)

Estimated additional annual cost per homeowner: $1,873, driven primarily by flood

84.1% of homes built before 1978 (lead paint era)

Violation History (2021–2024)

→ Stable trend

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

2021
1 (1 health)
2022
1 (1 health)
2024
1 (1 health)

Peak year: 2021 with 1 violation. Past 5 years: 3 total (3 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 13.9% (national: 10.5%)
Obesity 40.6% (national: 32.4%)

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

Infrastructure Overview

1956
Median Build Year
84.1%
Pre-1978 Housing
53/100
Infrastructure Stress Indicator
100%
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: $1,873

Flood $700/yr
Energy Code Gap $540/yr
Water / Lead $417/yr

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

Housing Age Distribution

12,286 housing units in Iroquois County

Pre-1940 30%
1940–1959 21%
1960–1979 27%
1980–1999 15%
2000+ 7%

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 Iroquois County

$105K
Median Home Value
$2,173
Est. Remediation Cost
2.1%
of Home Value
Remediation as % of home value moderate burden

Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.

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 Iroquois County residents

Asthma 10.5% (US avg: 8.9%)
Diabetes 13.9% (US avg: 11%)
Obesity 40.6% (US avg: 32.4%)

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

Water systems serving Iroquois County

4 community water systems serving Iroquois County.

Systems with the most violations in Iroquois County

3 water systems with recorded EPA violations.

  • Onarga
    Serves ~1,409 people 5 violations
  • Gilman
    Serves ~1,793 people 4 violations
  • Watseka
    Serves ~5,500 people 2 violations

All ZIP Codes in Iroquois County

23 ZIP codes tracked in Iroquois County.

# ZIP Code City Safety Score Grade Violations Home Value
1 60911 Ashkum $152K
2 60912 Beaverville $86K
3 60918 Buckley 0 $98K
4 60924 Cissna Park $148K
5 60926 Claytonville $46K
6 60927 Clifton $194K
7 60928 Crescent City $114K
8 60930 Danforth $150K
9 60931 Donovan $112K
10 60938 Gilman 9 $123K
11 60939 Goodwine
12 60945 Iroquois $95K
13 60948 Loda 0 $238K
14 60951 Martinton $123K
15 60953 Milford 2 $99K
16 60955 Onarga 9 $105K
17 60956 Papineau $87K
18 60966 Sheldon 2 $76K
19 60967 Stockland
20 60968 Thawville 0 $102K
21 60970 Watseka 2 $121K
22 60973 Wellington $76K
23 60974 Woodland $91K

Recommended Buyer Guides for Iroquois 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

Iroquois County in Illinois covers 23 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

5 of 8 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← 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

How many water systems serve Iroquois County?
Iroquois County is served by 4 public water systems that supply drinking water to residents across 23 ZIP codes.
What is the biggest environmental risk in Iroquois County?
The primary environmental risk factor in Iroquois County is flood. This contributes to an estimated additional annual cost of $1,873 per homeowner.
How old are homes in Iroquois County?
The median home build year in Iroquois County is 1956. 84.1% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Iroquois County, Illinois Home Safety Profile. https://zipcheckup.com/county/illinois/iroquois/
BibTeX
@misc{zipcheckup-county-illinois-iroquois,
  author = {{ZipCheckup}},
  title  = {{Iroquois County, Illinois Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/illinois/iroquois/}
}

Page version: August 2026.

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