COUNTY REPORT IL

Stephenson County, Illinois

14 ZIP codes · Home Safety Score unavailable · 0 of 14 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 14 tracked ZIP records scored
14
ZIP Codes
$157K
Median Home Value
$2,696
Avg Remediation (172% of home value)

ZIP Code Risk Map

Water Quality Map: Stephenson 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: 14.9 (asthma 10.6%, diabetes 13.9%)

Estimated additional annual cost per homeowner: $1,677, driven primarily by flood

77.2% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.6% (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

1954
Median Build Year
77.2%
Pre-1978 Housing
52/100
Infrastructure Stress Indicator
86%
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: $1,677

Flood $971/yr
Energy Code Gap $559/yr
Water / Lead $375/yr

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

Housing Age Distribution

22,049 housing units in Stephenson County

Pre-1940 32%
1940–1959 17%
1960–1979 24%
1980–1999 19%
2000+ 8%

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 Stephenson County

$157K
Median Home Value
$2,696
Est. Remediation Cost
1.7%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.6% (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 Stephenson County

3 community water systems serving Stephenson County.

Systems with the most violations in Stephenson County

1 water system with recorded EPA violations.

  • Lena
    Serves ~2,680 people 1 violation

All ZIP Codes in Stephenson County

14 ZIP codes tracked in Stephenson County.

# ZIP Code City Safety Score Grade Violations Home Value
1 61013 Cedarville $111K
2 61018 Dakota $163K
3 61019 Davis $226K
4 61027 Eleroy
5 61032 Freeport 0 $107K
6 61039 German Valley 0 $146K
7 61044 Kent $147K
8 61048 Lena 1 $171K
9 61050 Mc Connell $127K
10 61060 Orangeville $157K
11 61062 Pearl City $176K
12 61067 Ridott 0 $196K
13 61070 Rock City $173K
14 61089 Winslow 1 $118K

Recommended Buyer Guides for Stephenson County

Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.

Overview

Stephenson County in Illinois covers 14 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.

2 of 5 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 Stephenson County?
Stephenson County is served by 3 public water systems that supply drinking water to residents across 14 ZIP codes.
What is the biggest environmental risk in Stephenson County?
The primary environmental risk factor in Stephenson County is flood. This contributes to an estimated additional annual cost of $1,677 per homeowner.
How old are homes in Stephenson County?
The median home build year in Stephenson County is 1954. 77.2% 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). Stephenson County, Illinois Home Safety Profile. https://zipcheckup.com/county/illinois/stephenson/
BibTeX
@misc{zipcheckup-county-illinois-stephenson,
  author = {{ZipCheckup}},
  title  = {{Stephenson County, Illinois Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/illinois/stephenson/}
}

Page version: August 2026.

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