COUNTY REPORT MO

Wayne County, Missouri

10 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-06-03

The systems supplying Wayne County's 10 ZIP codes vary in performance — most meet minimum standards, but violations in select areas are on record.

How Wayne County Compares

Wayne County69/100
Missouri avg69/100
National avg68/100

How Wayne County Compares

C
County Grade
69/100
Avg Safety Score
10
ZIP Codes
13
Water Systems

Wayne County scores 0 points above the Missouri state average (69/100) and 1 points above the national average (68/100).

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

C
County Grade
69
Avg Safety Score
10
ZIP Codes
Best ZIP: 63944 (83/100)
Lowest ZIP: 63951 (53/100)
$116K
Median Home Value
$1,510
Avg Remediation (130% of home value)

ZIP Code Risk Map

Water Quality Map: Wayne 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: 18 (asthma 11.3%, diabetes 17.4%)

Estimated additional annual cost per homeowner: $1,026, driven primarily by flood

Infrastructure: 0.41% avg pipe failure probability, 40% of ZIPs at high risk

70.9% of homes built before 1978 (lead paint era)

Violation History (2021–2022)

→ Stable trend

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

2021
1 (1 health)
2022
3 (3 health)

Peak year: 2022 with 3 violations. Past 5 years: 4 total (4 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 11.3% (national: 8.9%)
Diabetes 17.4% (national: 10.5%)
Obesity 41.5% (national: 32.4%)

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

Infrastructure Overview

1973
Median Build Year
70.9%
Pre-1978 Housing
41%
Pipe Failure Probability
40%
ZIPs at High Infra Risk
Low
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: $1,026

Flood $400/yr
Wildfire $300/yr
Water / Lead $200/yr

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

Housing Age Distribution

6,424 housing units in Wayne County

Pre-1940 9%
1940–1959 12%
1960–1979 32%
1980–1999 31%
2000+ 16%

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 Wayne County

$116K
Median Home Value
$1,510
Est. Remediation Cost
1.3%
of Home Value
Remediation as % of home value low burden

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

Asthma 11.3% (US avg: 8.9%)
Diabetes 17.4% (US avg: 11%)
Obesity 41.5% (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 Wayne County ranked by EPA violation count.

# Water System Population Violations
1 Wayne County Pwsd 2 950 23
2 Mill Spring Public Water System 112 22
3 Piedmont Public Water System 1,987 19
4 Wayne County Pwsd 3 300 19
5 Community Water System 378 4

13 total water systems serve Wayne County.

All ZIP Codes in Wayne County

10 ZIP codes tracked in Wayne County.

# ZIP Code City Safety Score Grade Violations Home Value
1 63944 Greenville 83 B 0 $145K
2 63956 Patterson 82 B 2 $177K
3 63964 Silva 82 B 2
4 63966 Wappapello 79 B 4 (1 health) $116K
5 63957 Piedmont 70 B 19 (3 health) $114K
6 63952 Mill Spring 69 C 22
7 63950 Lodi 63 C 0
8 63763 Mc Gee 53 D 0 $106K
9 63934 Clubb 53 D 0
10 63951 Lowndes 53 D 0

Recommended Buyer Guides for Wayne County

While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.

Overview

Wayne County in Missouri covers 10 ZIP codes with an average Home Safety Score of C (69/100).

5 of 10 ZIP codes have recorded EPA violations. 4 health-based violations have been documented.

← Back to Missouri water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Wayne County?
Wayne County receives a grade of C. Some ZIP codes have recorded violations and residents in affected areas may want to test their water.
How many water systems serve Wayne County?
Wayne County is served by 13 public water systems that supply drinking water to residents across 10 ZIP codes.
What is the biggest environmental risk in Wayne County?
The primary environmental risk factor in Wayne County is flood. This contributes to an estimated additional annual cost of $1,026 per homeowner.
How old are homes in Wayne County?
The median home build year in Wayne County is 1973. 70.9% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Wayne County compare to Missouri?
Wayne County has an average water safety score of 69/100, which is above the Missouri state average of 69/100.

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