Ray County, Missouri
8 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-07-16
ZipCheckup grade for Ray: B.
This ZIP looks solid, with a few items worth a quick check.
Ray County earns a high water safety grade - 8 ZIP codes tracked, virtually all compliant.
How Ray County Compares
How Ray County Compares
Ray County scores 1 points above the Missouri state average (69/100) and 2 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-16
ZIP Code Risk Map
Water Quality Map: Ray County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.1 (asthma 10.7%, diabetes 13.4%)
Estimated additional annual cost per homeowner: $1,253, driven primarily by flood
Infrastructure: 0.406% avg pipe failure probability, 63% of ZIPs at high risk
68.6% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Ray County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 1 violation. Past 5 years: 2 total (2 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: $1,253
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
8,465 housing units in Ray 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 Ray County
Remediation costs are relatively manageable for most homeowners in Ray 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 Ray County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Ray County
8 community water systems serving Ray County.
- B
- B
- B
- C
- C
- B
Show all 8 water systems
- B
- B
18 total water systems serve Ray County.
Systems with the most violations in Ray County
2 water systems with recorded EPA violations.
- B
- B
All ZIP Codes in Ray County
8 ZIP codes tracked in Ray County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64085 | Richmond | 82 | B | 2 (1 health) | $164K |
| 2 | 64062 | Lawson | 78 | B | 0 | $231K |
| 3 | 64077 | Orrick | 78 | B | 1 | $159K |
| 4 | 64036 | Henrietta | 71 | B | 6 | $58K |
| 5 | 64035 | Hardin | 70 | B | 3 | $118K |
| 6 | 64017 | Camden | 63 | C | 0 | $154K |
| 7 | 64084 | Rayville | 63 | C | 0 | $249K |
| 8 | 64680 | Stet | 53 | D | 0 | — |
Recommended Buyer Guides for Ray County
Four sources - EPA, NSF, FEMA, CDC - drive the match.
- Best Lead Paint Test Kits — 68.6% 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 Ray County, Missouri
Overview
Ray County in Missouri covers 8 ZIP codes with an average Home Safety Score of B (70/100).
4 of 8 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.