Monroe County, Mississippi
11 ZIP codes · Avg score 80/100 · Grade B · Updated 2026-06-03
Compared to state averages, Monroe County scores well — its 11 ZIP codes sit above the baseline for tap water quality.
How Monroe County Compares
How Monroe County Compares
Monroe County scores 1 points below the Mississippi state average (81/100) and 12 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Monroe County, Mississippi
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.4 (asthma 10.1%, diabetes 16.9%)
Estimated additional annual cost per homeowner: $787, driven primarily by flood
Infrastructure: 0.347% avg pipe failure probability, 20% of ZIPs at high risk
55.3% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Monroe County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 22 violations. Past 5 years: 28 total (28 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $787
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
28,293 housing units in Monroe County
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
Remediation costs are relatively manageable for most homeowners in Monroe 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 Monroe County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Monroe County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | City of Jackson | 189,673 | 33 |
| 2 | City of Jackson-maddox Rd. | 28,098 | 33 |
| 3 | Hinds Company Detention Ctr | 800 | 33 |
| 4 | Hinds Company Detention Center-gallatin St | 25 | 33 |
| 5 | City of Amory | 9,350 | 24 |
24 total water systems serve Monroe County.
All ZIP Codes in Monroe County
11 ZIP codes tracked in Monroe County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 38844 | Gattman | 98 | A | 5 (1 health) | — |
| 2 | 38848 | Greenwood Springs | 98 | A | 4 (1 health) | $186K |
| 3 | 38858 | Nettleton | 94 | A | 6 (1 health) | $109K |
| 4 | 39746 | Hamilton | 91 | A | 2 | $98K |
| 5 | 39740 | Caledonia | 83 | B | 3 | $155K |
| 6 | 39730 | Aberdeen | 81 | B | 6 | $84K |
| 7 | 39756 | Prairie | 73 | B | 0 | $73K |
| 8 | 38821 | Amory | 72 | B | 8 | $158K |
| 9 | 38825 | Becker | 66 | C | 0 | — |
| 10 | 38870 | Smithville | 66 | C | 0 | $121K |
| 11 | 39204 | Jackson | 60 | C | 33 (28 health) | $68K |
Recommended Buyer Guides for Monroe County
Strictly editorial — no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Lead Paint Test Kits — 55.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Monroe County, Mississippi
Overview
Monroe County in Mississippi covers 11 ZIP codes with an average Home Safety Score of B (80/100).
8 of 11 ZIP codes have recorded EPA violations. 31 health-based violations have been documented.
← Back to Mississippi water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.