COUNTY REPORT IN

Johnson County, Indiana

6 ZIP codes · Home Safety Score unavailable · 0 of 6 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 6 tracked ZIP records scored
6
ZIP Codes
$247K
Median Home Value
$3,317
Avg Remediation (134% of home value)

ZIP Code Risk Map

Water Quality Map: Johnson County, Indiana

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: 13.3 (asthma 10.9%, diabetes 11.9%)

Estimated additional annual cost per homeowner: $1,888, driven primarily by flood

47% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.9% (national: 8.9%)
Diabetes 11.9% (national: 10.5%)
Obesity 38.8% (national: 32.4%)

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

Infrastructure Overview

1989
Median Build Year
47%
Pre-1978 Housing
34/100
Infrastructure Stress Indicator
17%
ZIPs with High Infrastructure Stress
Moderate
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: $1,888

Flood $1,533/yr
Energy Code Gap $180/yr
Water Infrastructure $125/yr

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

Housing Age Distribution

62,116 housing units in Johnson County

Pre-1940 6%
1940–1959 9%
1960–1979 20%
1980–1999 34%
2000+ 31%

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 Johnson County

$247K
Median Home Value
$3,317
Est. Remediation Cost
1.3%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.9% (US avg: 8.9%)
Diabetes 11.9% (US avg: 11%)
Obesity 38.8% (US avg: 32.4%)

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

Water systems serving Johnson County

8 community water systems serving Johnson County.

Show all 8 water systems

9 total water systems serve Johnson County.

Systems with the most violations in Johnson County

5 water systems with recorded EPA violations.

All ZIP Codes in Johnson County

6 ZIP codes tracked in Johnson County.

# ZIP Code City Safety Score Grade Violations Home Value
1 46106 Bargersville 9 $431K
2 46124 Edinburgh 19 $184K
3 46131 Franklin 28 $228K
4 46142 Greenwood 8 $266K
5 46143 Greenwood 9 $295K
6 46184 Whiteland 11 $205K

Recommended Buyer Guides for Johnson County

Designed to find the guide that fits the county, not the other way around - the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.

Overview

Johnson County in Indiana covers 6 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.

6 of 6 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 Indiana 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 Johnson County?
Johnson County is served by 9 public water systems that supply drinking water to residents across 6 ZIP codes.
What is the biggest environmental risk in Johnson County?
The primary environmental risk factor in Johnson County is flood. This contributes to an estimated additional annual cost of $1,888 per homeowner.
How old are homes in Johnson County?
The median home build year in Johnson County is 1989. 47% 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). Johnson County, Indiana Home Safety Profile. https://zipcheckup.com/county/indiana/johnson/
BibTeX
@misc{zipcheckup-county-indiana-johnson,
  author = {{ZipCheckup}},
  title  = {{Johnson County, Indiana Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/indiana/johnson/}
}

Page version: August 2026.

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