COUNTY REPORT MO

Warren County, Missouri

5 ZIP codes · Home Safety Score unavailable · 0 of 5 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 5 tracked ZIP records scored
5
ZIP Codes
$221K
Median Home Value
$1,120
Avg Remediation (51% of home value)

ZIP Code Risk Map

Water Quality Map: Warren 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: 14.3 (asthma 10.5%, diabetes 12.3%)

Estimated additional annual cost per homeowner: $612, driven primarily by flood

42.5% of homes built before 1978 (lead paint era)

Violation History (2023–2024)

→ Stable trend

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

2023
1 (1 health)
2024
4 (4 health)

Peak year: 2024 with 4 violations. Past 5 years: 5 total (5 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 12.3% (national: 10.5%)
Obesity 39% (national: 32.4%)

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

Infrastructure Overview

1989
Median Build Year
42.5%
Pre-1978 Housing
36/100
Infrastructure Stress Indicator
25%
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: $612

Flood $600/yr
Water Infrastructure $150/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

8,787 housing units in Warren County

Pre-1940 6%
1940–1959 4%
1960–1979 18%
1980–1999 36%
2000+ 36%

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 Warren County

$221K
Median Home Value
$1,120
Est. Remediation Cost
0.5%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.5% (US avg: 8.9%)
Diabetes 12.3% (US avg: 11%)
Obesity 39% (US avg: 32.4%)

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

Water systems serving Warren County

8 community water systems serving Warren County.

Show all 8 water systems

11 total water systems serve Warren County.

Systems with the most violations in Warren County

5 water systems with recorded EPA violations.

All ZIP Codes in Warren County

5 ZIP codes tracked in Warren County.

# ZIP Code City Safety Score Grade Violations Home Value
1 63342 Dutzow
2 63357 Marthasville 57 (1 health) $243K
3 63380 Truesdale 5 (1 health) $200K
4 63381 Truxton 5 (1 health) $193K
5 63390 Wright City 21 (2 health) $245K

Recommended Buyer Guides for Warren 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

Warren County in Missouri covers 5 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.

4 of 4 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 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 Warren County?
Warren County is served by 11 public water systems that supply drinking water to residents across 5 ZIP codes.
What is the biggest environmental risk in Warren County?
The primary environmental risk factor in Warren County is flood. This contributes to an estimated additional annual cost of $612 per homeowner.
How old are homes in Warren County?
The median home build year in Warren County is 1989. 42.5% 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). Warren County, Missouri Home Safety Profile. https://zipcheckup.com/county/missouri/warren/
BibTeX
@misc{zipcheckup-county-missouri-warren,
  author = {{ZipCheckup}},
  title  = {{Warren County, Missouri Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/missouri/warren/}
}

Page version: August 2026.

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