COUNTY REPORT MO

Monroe County, Missouri

6 ZIP codes · Avg score 81/100 · Grade B

ZipCheckup grade for Monroe County: B.

This ZIP has a few items worth a quick check.

Monroe County earns an A or B, the top two of ZipCheckup's five grades, based on the average composite Home Safety Score of its scored ZIP codes. That composite can draw on drinking water records, radon zones, PFAS monitoring and air quality data, so a strong grade summarizes several sources and is not a reading from anyone's tap. Scores also vary from one ZIP code to another, and the 6 ZIP reports listed for the county show where each one stands.

How Monroe County Compares

Monroe County81/100
Missouri avg71/100
National avg73/100

How Monroe County Compares

B
County Grade
81/100
Avg Safety Score
6
ZIP Codes
5
Water Systems

Monroe County scores 10 points above the Missouri state average (71/100) and 8 points above the national average (73/100).

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

B
County Grade
81
Avg Safety Score
6
ZIP Codes
Best ZIP: 65258 (82/100)
Lowest ZIP: 63456 (80/100)
$151K
Median Home Value
$500
Avg Remediation (0.33% of home value)

ZIP Code Risk Map

Water Quality Map: Monroe 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: 16.1 (asthma 10.6%, diabetes 15%)

Modeled additional annual cost estimate per homeowner: $365, largest modeled factor: Flood

51% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.6% (national: 8.9%)
Diabetes 15% (national: 10.5%)
Obesity 37.8% (national: 32.4%)

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

Infrastructure Overview

1976
Median Build Year
51%
Pre-1980 Housing
41/100
Infrastructure Stress Indicator
67%
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: $365

Flood $400/yr
Water / Lead $170/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

5,107 housing units in Monroe County

Pre-1940 17%
1940–1959 9%
1960–1979 25%
1980–1999 26%
2000+ 23%

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 Monroe County

$151K
Median Home Value
$500
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Monroe 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 Monroe County residents

Asthma 10.6% (US avg: 8.9%)
Diabetes 15% (US avg: 11%)
Obesity 37.8% (US avg: 32.4%)

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

Water systems mapped to Monroe County ZIP codes

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

Systems with the most violations in Monroe County

3 water systems with violations in EPA records.

All ZIP Codes in Monroe County

6 ZIP codes tracked in Monroe County.

# ZIP Code City Safety Score Grade Violations Home Value
1 65258 Holliday 82 B 5 $169K
2 65263 Madison 82 B 5 $124K
3 65275 Paris 81 B 8 $143K
4 65283 Stoutsville 81 B 8 $231K
5 63456 Monroe City 80 B 9 $151K
6 65282 Santa Fe — — —

Recommended Buyer Guides for Monroe County

Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.

Overview

Monroe County in Missouri covers 6 tracked ZIP records with an average Home Safety Score of B (81/100) across 5 scored records.

5 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 Missouri Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Monroe County?
Monroe County receives an average Home Safety grade of B from its scored ZIP records (6 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Monroe County?
We map 5 public water systems to 6 ZIP codes in our data for Monroe County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Monroe County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Monroe County is flood. Across all modeled risk factors, the estimated average additional annual cost is $365 per homeowner; actual costs vary by home.
How old are homes in Monroe County?
The median home build year in Monroe County is 1976. 51% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Monroe County compare to Missouri?
Monroe County has an average Home Safety Score of 81/100 under model 4.0.0, which is at or above the Missouri state average of 71/100.

How to cite this page

APA ZipCheckup. (2026). Monroe County, MO: HSS 81/100; 9 Violations. https://zipcheckup.com/county/missouri/monroe/
BibTeX
@misc{zipcheckup-county-missouri-monroe,
  author = {{ZipCheckup}},
  title  = {{Monroe County, MO: HSS 81/100; 9 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/missouri/monroe/}
}

Page version: October 2026.

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