New Madrid County, Missouri
14 ZIP codes · Avg score 83/100 · Grade B · Updated 2026-06-03
Within New Madrid County's 14 tracked ZIP codes, safety indicators remain above the national average with few health-based violations on record.
How New Madrid County Compares
How New Madrid County Compares
New Madrid County scores 14 points above the Missouri state average (69/100) and 15 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: New Madrid County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.6 (asthma 11.4%, diabetes 15.8%)
Estimated additional annual cost per homeowner: $938, driven primarily by flood
Infrastructure: 0.439% avg pipe failure probability, 86% of ZIPs at high risk
79.8% of homes built before 1978 (lead paint era)
Violation History (2021–2023)
→ Stable trendEPA violation counts by year across New Madrid County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 3 violations. Past 5 years: 9 total (9 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: $938
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,933 housing units in New Madrid 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 New Madrid County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 New Madrid 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 New Madrid County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | New Madrid County Pwsd 5 | 1,800 | 40 |
| 2 | New Madrid County Pwsd 4 | 638 | 34 |
| 3 | New Madrid County Pwsd 2 | 600 | 26 |
| 4 | New Madrid Public Water System | 3,250 | 26 |
| 5 | New Madrid County Pwsd 1 | 450 | 26 |
16 total water systems serve New Madrid County.
All ZIP Codes in New Madrid County
14 ZIP codes tracked in New Madrid County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 63860 | Kewanee | 96 | A | 3 | $59K |
| 2 | 63866 | Marston | 95 | A | 0 | $69K |
| 3 | 63874 | Risco | 94 | A | 9 (1 health) | $73K |
| 4 | 63848 | Gideon | 92 | A | 3 | $62K |
| 5 | 63870 | Parma | 92 | A | 16 (3 health) | $46K |
| 6 | 63868 | Morehouse | 89 | A | 8 (1 health) | $64K |
| 7 | 63873 | Portageville | 84 | B | 3 | $136K |
| 8 | 63828 | Canalou | 83 | B | 5 | $39K |
| 9 | 63867 | Matthews | 82 | B | 11 | $107K |
| 10 | 63869 | New Madrid | 81 | B | 5 | $126K |
| 11 | 63862 | Lilbourn | 79 | B | 18 (3 health) | $80K |
| 12 | 63833 | Catron | 66 | C | 0 | — |
| 13 | 63850 | Grayridge | 66 | C | 0 | — |
| 14 | 63878 | Tallapoosa | 66 | C | 0 | $52K |
Recommended Buyer Guides for New Madrid County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Lead Paint Test Kits — 79.8% 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 New Madrid County, Missouri
Overview
New Madrid County in Missouri covers 14 ZIP codes with an average Home Safety Score of B (83/100).
10 of 14 ZIP codes have recorded EPA violations. 8 health-based violations have been documented.
← Back to Missouri 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.