De Soto County, Louisiana
8 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-04
Although county size varies, De Soto County's 8 ZIP codes share reliably safe tap water records and above-average compliance scores.
How De Soto County Compares
How De Soto County Compares
De Soto County scores 2 points above the Louisiana state average (71/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: De Soto County, Louisiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 17 (asthma 10.9%, diabetes 17.8%)
Estimated additional annual cost per homeowner: $606, driven primarily by flood
Infrastructure: 0.316% avg pipe failure probability, 14% of ZIPs at high risk
41.7% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across De Soto County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 38 violations. Past 5 years: 63 total (63 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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: $606
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,690 housing units in De Soto 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 De Soto 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 De Soto 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 De Soto County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mansfield Water System | 7,512 | 41 |
| 2 | South Mansfield Water System | 933 | 38 |
| 3 | Desoto Parish Water Works District 1 | 7,887 | 38 |
| 4 | East Desoto Water System | 1,455 | 38 |
| 5 | South Desoto Water System | 963 | 38 |
11 total water systems serve De Soto County.
All ZIP Codes in De Soto County
8 ZIP codes tracked in De Soto County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 71063 | Pelican | 99 | A | 0 | $73K |
| 2 | 71078 | Stonewall | 89 | A | 2 | $260K |
| 3 | 71032 | Grand Cane | 82 | B | 3 (1 health) | $178K |
| 4 | 71049 | Logansport | 81 | B | 6 (5 health) | $78K |
| 5 | 71046 | Keatchie | 66 | C | 22 (11 health) | $77K |
| 6 | 71052 | Mansfield | 65 | C | 38 (30 health) | $93K |
| 7 | 71027 | Frierson | 50 | D | 0 | $186K |
| 8 | 71050 | Longstreet | 50 | D | 0 | — |
Recommended Buyer Guides for De Soto County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- 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 De Soto County, Louisiana
Overview
De Soto County in Louisiana covers 8 ZIP codes with an average Home Safety Score of B (73/100).
5 of 8 ZIP codes have recorded EPA violations. 47 health-based violations have been documented.
← Back to Louisiana 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.