COUNTY REPORT MS

Copiah County, Mississippi

4 ZIP codes · Avg score 86/100 · Grade A · Updated 2026-06-03

Recent water monitoring in Copiah County shows 4 ZIP codes with consistently safe results.

How Copiah County Compares

Copiah County86/100
Mississippi avg81/100
National avg68/100

How Copiah County Compares

A
County Grade
86/100
Avg Safety Score
4
ZIP Codes
13
Water Systems

Copiah County scores 5 points above the Mississippi state average (81/100) and 18 points above the national average (68/100).

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

A
County Grade
86
Avg Safety Score
4
ZIP Codes
Best ZIP: 39077 (97/100)
Lowest ZIP: 39078 (65/100)
$118K
Median Home Value
$1,830
Avg Remediation (155% of home value)

Key Risk Factors

Health risk index: 16.3 (asthma 10.3%, diabetes 18.2%)

Estimated additional annual cost per homeowner: $643, driven primarily by flood

Infrastructure: 0.37% avg pipe failure probability, 25% of ZIPs at high risk

59.3% of homes built before 1978 (lead paint era)

Violation History (2021–2024)

→ Stable trend

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

2021
1 (1 health)
2024
9 (9 health)

Peak year: 2024 with 9 violations. Past 5 years: 10 total (10 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 10.3% (national: 8.9%)
Diabetes 18.2% (national: 10.5%)
Obesity 41.8% (national: 32.4%)

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

Infrastructure Overview

1971
Median Build Year
59.3%
Pre-1978 Housing
37%
Pipe Failure Probability
25%
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: $643

Flood $500/yr
Water / Lead $75/yr
Energy Code Gap $68/yr

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

Housing Age Distribution

9,894 housing units in Copiah County

Pre-1940 6%
1940–1959 8%
1960–1979 30%
1980–1999 35%
2000+ 21%

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 Copiah County

$118K
Median Home Value
$1,830
Est. Remediation Cost
1.6%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.3% (US avg: 8.9%)
Diabetes 18.2% (US avg: 11%)
Obesity 41.8% (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 Copiah County ranked by EPA violation count.

# Water System Population Violations
1 Copiah W/a - Hazlehurst 2,574 24
2 Copiah W/a - Gallman 1,566 21
3 Copiah W/a - Bayou Pierre #1 1,246 21
4 Copiah W/a - Bayou Pierre #2 430 21
5 Northeast Copiah Water Assn 3,020 12

13 total water systems serve Copiah County.

All ZIP Codes in Copiah County

4 ZIP codes tracked in Copiah County.

# ZIP Code City Safety Score Grade Violations Home Value
1 39077 Gallman 97 A 21 (2 health)
2 39083 Hazlehurst 92 A 3 $87K
3 39059 Crystal Springs 89 A 6 (1 health) $118K
4 39078 Georgetown 65 C 3 (1 health) $182K

Recommended Buyer Guides for Copiah County

Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.

Overview

Copiah County in Mississippi covers 4 ZIP codes with an average Home Safety Score of A (86/100).

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

← Back to Mississippi water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Copiah County?
Copiah County receives a grade of A, indicating generally safe tap water across its 4 ZIP codes.
How many water systems serve Copiah County?
Copiah County is served by 13 public water systems that supply drinking water to residents across 4 ZIP codes.
What is the biggest environmental risk in Copiah County?
The primary environmental risk factor in Copiah County is flood. This contributes to an estimated additional annual cost of $643 per homeowner.
How old are homes in Copiah County?
The median home build year in Copiah County is 1971. 59.3% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Copiah County compare to Mississippi?
Copiah County has an average water safety score of 86/100, which is above the Mississippi state average of 81/100.

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