COUNTY REPORT IL

Kendall County, Illinois

7 ZIP codes · Home Safety Score unavailable · 0 of 7 tracked ZIP records scored

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

Unavailable
0 of 7 tracked ZIP records scored
7
ZIP Codes
$281K
Median Home Value
$300
Avg Remediation (0.11% of home value)

ZIP Code Risk Map

Water Quality Map: Kendall 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: 11.2 (asthma 9.5%, diabetes 9.4%)

Modeled additional annual cost estimate per homeowner: $1,939, largest modeled factor: Flood

26% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.5% (national: 8.9%)
Diabetes 9.4% (national: 10.5%)
Obesity 39.7% (national: 32.4%)

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

Infrastructure Overview

1987
Median Build Year
26%
Pre-1980 Housing
42/100
Infrastructure Stress Indicator
57%
ZIPs with High Infrastructure Stress
Low
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: $1,939

Flood $1,114/yr
Sea Level Rise $400/yr
Energy Code Gap $360/yr

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

Housing Age Distribution

30,817 housing units in Kendall County

Pre-1940 6%
1940–1959 6%
1960–1979 14%
1980–1999 27%
2000+ 46%

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 Kendall County

$281K
Median Home Value
$300
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Kendall 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 Kendall County residents

Asthma 9.5% (US avg: 8.9%)
Diabetes 9.4% (US avg: 11%)
Obesity 39.7% (US avg: 32.4%)

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

Water systems mapped to Kendall County ZIP codes

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

  • Joliet
    Serves ~160,000 people 7 violations
  • Plainfield
    Serves ~50,000 people 2 violations
  • Oswego
    Serves ~38,169 people 2 violations
  • Montgomery
    Serves ~28,956 people 3 violations
  • Yorkville
    Serves ~23,000 people 1 violation
  • Morris
    Serves ~14,775 people 1 violation
Show all 8 water systems
  • Plano
    Serves ~12,600 people 6 violations
  • Sandwich
    Serves ~7,156 people 2 violations

10 water systems mapped to Kendall County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Kendall County

5 water systems with violations in EPA records.

All ZIP Codes in Kendall County

7 ZIP codes tracked in Kendall County.

# ZIP Code City Safety Score Grade Violations Home Value
1 60512 Bristol — — 11 (1 health) $281K
2 60536 Millbrook — — $200K
3 60537 Millington — — $205K
4 60541 Newark — — 9 (1 health) $303K
5 60543 Oswego — — 22 (2 health) $319K
6 60545 Plano — — 9 $236K
7 60560 Yorkville — — 22 (2 health) $325K

Recommended Buyer Guides for Kendall County

When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.

Overview

Kendall County in Illinois covers 7 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 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 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

How many water systems serve Kendall County?
We map 10 public water systems to 7 ZIP codes in our data for Kendall County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Kendall County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Kendall County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,939 per homeowner; actual costs vary by home.
How old are homes in Kendall County?
The median home build year in Kendall County is 1987. 26% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

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

Page version: October 2026.

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