Phelps County, Missouri
11 ZIP codes · Avg score 65/100 · Grade C · Updated 2026-06-03
Unlike top-rated counties, Phelps County's 11 ZIP codes carry a fair number of documented violations — chlorine compliance and disinfection byproduct limits are the categories most often cited in recent data.
How Phelps County Compares
How Phelps County Compares
Phelps County scores 4 points below the Missouri state average (69/100) and 3 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Phelps County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.1 (asthma 10.5%, diabetes 12.3%)
Estimated additional annual cost per homeowner: $1,244, driven primarily by flood
Infrastructure: 0.385% avg pipe failure probability, 20% of ZIPs at high risk
66.8% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Phelps County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 7 violations. Past 5 years: 8 total (8 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: $1,244
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
20,016 housing units in Phelps 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 Phelps County
Remediation costs are relatively manageable for most homeowners in Phelps 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 Phelps 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 Phelps County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Rolla Public Water System | 20,800 | 9 |
| 2 | Phelps County Pwsd 2 South | 1,768 | 9 |
| 3 | Phelps County Pwsd 2 North | 523 | 9 |
| 4 | Lakeside Community Inc. | 160 | 9 |
| 5 | Stately Mansion Mobile Villa | 100 | 9 |
9 total water systems serve Phelps County.
All ZIP Codes in Phelps County
11 ZIP codes tracked in Phelps County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 65402 | Rolla | 82 | B | 3 | — |
| 2 | 65409 | Rolla | 82 | B | 3 | — |
| 3 | 65462 | Edgar Springs | 82 | B | 2 (1 health) | $118K |
| 4 | 65401 | Rolla | 72 | B | 3 | $207K |
| 5 | 65449 | Cook Sta | 63 | C | 0 | — |
| 6 | 65559 | Saint James | 63 | C | 0 | $195K |
| 7 | 65461 | Duke | 55 | C | 0 | $191K |
| 8 | 65580 | Vichy | 55 | C | 0 | $199K |
| 9 | 65532 | Lake Spring | 53 | D | 0 | — |
| 10 | 65541 | Lenox | 53 | D | 0 | $325K |
| 11 | 65529 | Jerome | 50 | D | 0 | — |
Recommended Buyer Guides for Phelps County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 66.8% of homes built before 1978
- 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 Phelps County, Missouri
Overview
Phelps County in Missouri covers 11 ZIP codes with an average Home Safety Score of C (65/100).
4 of 11 ZIP codes have recorded EPA violations. 1 health-based violation 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.