Ralls County, Missouri
3 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-03
Ralls County shows moderate water quality across its 3 ZIP codes — some areas carry violations worth monitoring.
How Ralls County Compares
How Ralls County Compares
Ralls County scores 9 points below the Missouri state average (69/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 15.8 (asthma 10.6%, diabetes 14.4%)
Estimated additional annual cost per homeowner: $390, driven primarily by flood
Infrastructure: 0.323% avg pipe failure probability
47.7% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Ralls County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 6 violations. Past 5 years: 10 total (10 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: $390
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,749 housing units in Ralls 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 Ralls County
Remediation costs are relatively manageable for most homeowners in Ralls 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 Ralls County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Ralls County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Ralls County Pwsd 1 | 7,662 | 2 |
| 2 | Cannon Pwsd 1 | 6,482 | 2 |
| 3 | NEW LONDON PWS | 975 | 2 |
| 4 | Pike County Pwsd 1 | 7,590 | 2 |
All ZIP Codes in Ralls County
3 ZIP codes tracked in Ralls County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 63459 | New London | 73 | B | 2 (1 health) | $158K |
| 2 | 63436 | Center | 53 | D | 0 | $176K |
| 3 | 65282 | Santa Fe | 53 | D | 0 | — |
Recommended Buyer Guides for Ralls County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Overview
Ralls County in Missouri covers 3 ZIP codes with an average Home Safety Score of C (60/100).
1 of 3 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.