COUNTY REPORT MO

Maries County, Missouri

3 ZIP codes · Avg score 74/100 · Grade B · Updated 2026-06-03

Based on current EPA data, Maries County's 3 ZIP codes maintain an above-average drinking water safety record.

How Maries County Compares

Maries County74/100
Missouri avg69/100
National avg68/100

How Maries County Compares

B
County Grade
74/100
Avg Safety Score
3
ZIP Codes
6
Water Systems

Maries County scores 5 points above the Missouri state average (69/100) and 6 points above the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

B
County Grade
74
Avg Safety Score
3
ZIP Codes
Best ZIP: 65058 (83/100)
Lowest ZIP: 65582 (57/100)
$176K
Median Home Value
$1,000
Avg Remediation (57% of home value)

Key Risk Factors

Health risk index: 15.3 (asthma 10.7%, diabetes 13.6%)

Estimated additional annual cost per homeowner: $907, driven primarily by flood

Infrastructure: 0.323% avg pipe failure probability

52.7% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.7% (national: 8.9%)
Diabetes 13.6% (national: 10.5%)
Obesity 38.2% (national: 32.4%)

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

Infrastructure Overview

1981
Median Build Year
52.7%
Pre-1978 Housing
32%
Pipe Failure Probability
0%
ZIPs at High Infra Risk
Moderate
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $907

Flood $467/yr
Wildfire $300/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

1,654 housing units in Maries County

Pre-1940 11%
1940–1959 13%
1960–1979 24%
1980–1999 20%
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 Maries County

$176K
Median Home Value
$1,000
Est. Remediation Cost
0.6%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.7% (US avg: 8.9%)
Diabetes 13.6% (US avg: 11%)
Obesity 38.2% (US avg: 32.4%)

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

Water Systems with Most Violations

Top 5 systems in Maries County ranked by EPA violation count.

# Water System Population Violations
1 Vienna Public Water System 591 8
2 Maries County Pwsd 1 North 474 8
3 Maries County Pwsd 1 South 300 8
4 Eagle Bluff Apartments 60 2
5 Osage County Pwsd 4 357 1

6 total water systems serve Maries County.

All ZIP Codes in Maries County

3 ZIP codes tracked in Maries County.

# ZIP Code City Safety Score Grade Violations Home Value
1 65058 Meta 83 B 1 $192K
2 65443 Brinktown 81 B 2
3 65582 Vienna 57 C 8 $160K

Recommended Buyer Guides for Maries County

Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.

Overview

Maries County in Missouri covers 3 ZIP codes with an average Home Safety Score of B (74/100).

3 of 3 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.

← Back to Missouri water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Maries County?
Maries County receives a grade of B, indicating generally safe tap water across its 3 ZIP codes.
How many water systems serve Maries County?
Maries County is served by 6 public water systems that supply drinking water to residents across 3 ZIP codes.
What is the biggest environmental risk in Maries County?
The primary environmental risk factor in Maries County is flood. This contributes to an estimated additional annual cost of $907 per homeowner.
How old are homes in Maries County?
The median home build year in Maries County is 1981. 52.7% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Maries County compare to Missouri?
Maries County has an average water safety score of 74/100, which is above the Missouri state average of 69/100.

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