COUNTY REPORT MO

Johnson County, Missouri

8 ZIP codes · Home Safety Score unavailable · 0 of 8 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 8 tracked ZIP records scored
8
ZIP Codes
$219K
Median Home Value
$1,375
Avg Remediation (63% of home value)

ZIP Code Risk Map

Water Quality Map: Johnson County, Missouri

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: 12.1 (asthma 10.5%, diabetes 9.6%)

Estimated additional annual cost per homeowner: $490, driven primarily by flood

42.3% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.5% (national: 8.9%)
Diabetes 9.6% (national: 10.5%)
Obesity 35.3% (national: 32.4%)

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

Infrastructure Overview

1990
Median Build Year
42.3%
Pre-1978 Housing
32/100
Infrastructure Stress Indicator
13%
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: $490

Flood $333/yr
Water Infrastructure $94/yr
Energy Code Gap $90/yr

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

Housing Age Distribution

21,800 housing units in Johnson County

Pre-1940 9%
1940–1959 8%
1960–1979 20%
1980–1999 31%
2000+ 32%

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

$219K
Median Home Value
$1,375
Est. Remediation Cost
0.6%
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 10.5% (US avg: 8.9%)
Diabetes 9.6% (US avg: 11%)
Obesity 35.3% (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

12 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

8 ZIP codes tracked in Johnson County.

# ZIP Code City Safety Score Grade Violations Home Value
1 64019 Centerview 2 $219K
2 64040 Holden 5 $220K
3 64061 Kingsville 7 $240K
4 64093 Warrensburg 8 $228K
5 64733 Chilhowee 0 $197K
6 64761 Leeton 0 $124K
7 65305 Whiteman Air Force Base 3
8 65336 Knob Noster 12 $195K

Recommended Buyer Guides for Johnson 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

Johnson County in Missouri covers 8 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 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 Missouri 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 12 public water systems that supply drinking water to residents across 8 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 $490 per homeowner.
How old are homes in Johnson County?
The median home build year in Johnson County is 1990. 42.3% 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, Missouri Home Safety Profile. https://zipcheckup.com/county/missouri/johnson/
BibTeX
@misc{zipcheckup-county-missouri-johnson,
  author = {{ZipCheckup}},
  title  = {{Johnson County, Missouri Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/missouri/johnson/}
}

Page version: August 2026.

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