Howell County, Missouri
7 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
For households in Howell County, the 7 ZIP codes on record show consistently safe tap water.
How Howell County Compares
How Howell County Compares
Howell County scores 3 points above the Missouri state average (69/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Howell 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 (asthma 11.2%, diabetes 14.9%)
Estimated additional annual cost per homeowner: $769, driven primarily by flood
Infrastructure: 0.309% avg pipe failure probability, 14% of ZIPs at high risk
40.4% of homes built before 1978 (lead paint era)
Violation History (2021–2023)
→ Stable trendEPA violation counts by year across Howell County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 2 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
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: $769
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
17,939 housing units in Howell 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 Howell County
Remediation costs are relatively manageable for most homeowners in Howell 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 Howell 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 Howell County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Howell County Pwsd 3 | 1,625 | 7 |
| 2 | Howell Oregon County Pwsd 2 South | 180 | 3 |
| 3 | West Plains Public Water System | 12,864 | 3 |
| 4 | Howell Oregon County Pwsd 2 North | 1,742 | 3 |
| 5 | Henrys Mhp | 100 | 3 |
11 total water systems serve Howell County.
All ZIP Codes in Howell County
7 ZIP codes tracked in Howell County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 65688 | Brandsville | 83 | B | 0 | $603K |
| 2 | 65789 | Pomona | 83 | B | 0 | $155K |
| 3 | 65548 | Mountain View | 82 | B | 2 | $135K |
| 4 | 65793 | Willow Springs | 77 | B | 2 | $132K |
| 5 | 65775 | West Plains | 71 | B | 3 (2 health) | $178K |
| 6 | 65788 | Peace Valley | 53 | D | 0 | $87K |
| 7 | 65790 | Pottersville | 53 | D | 0 | $88K |
Recommended Buyer Guides for Howell County
Below: editorial picks, no sponsored placements.
- 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 Howell County, Missouri
Overview
Howell County in Missouri covers 7 ZIP codes with an average Home Safety Score of B (72/100).
3 of 7 ZIP codes have recorded EPA violations. 2 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.