Nodaway County, Missouri
14 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Spanning 14 ZIP codes, Nodaway County lands near the national median for water safety — compliance results are mixed, and the county's middle-grade standing reflects genuine variability rather than a single systemic problem.
How Nodaway County Compares
How Nodaway County Compares
Nodaway County scores 10 points below the Missouri state average (69/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Nodaway County, Missouri
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.9 (asthma 10.6%, diabetes 10.6%)
Estimated additional annual cost per homeowner: $539, driven primarily by water_lead
Infrastructure: 0.436% avg pipe failure probability, 71% of ZIPs at high risk
73.5% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Nodaway County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 7 violations. Past 5 years: 11 total (11 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: $539
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
9,266 housing units in Nodaway 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 Nodaway 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 Nodaway 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 Nodaway County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Nodaway County Pwsd 1 | 6,428 | 38 |
| 2 | Gentry County Pwsd 2 | 925 | 19 |
| 3 | Hopkins Public Water System | 550 | 12 |
| 4 | RAVENWOOD PWS | 420 | 10 |
| 5 | Maryville Public Water System | 10,775 | 9 |
13 total water systems serve Nodaway County.
All ZIP Codes in Nodaway County
14 ZIP codes tracked in Nodaway County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 64487 | Skidmore | 68 | C | 0 | $86K |
| 2 | 64423 | Barnard | 66 | C | 1 | $148K |
| 3 | 64445 | Elmo | 66 | C | 0 | $100K |
| 4 | 64475 | Parnell | 66 | C | 0 | $100K |
| 5 | 64461 | Hopkins | 65 | C | 12 (1 health) | $106K |
| 6 | 64479 | Ravenwood | 65 | C | 10 (1 health) | $134K |
| 7 | 64455 | Graham | 64 | C | 4 | $81K |
| 8 | 64468 | Maryville | 64 | C | 9 (3 health) | $200K |
| 9 | 64428 | Burlington Junction | 61 | C | 2 (1 health) | $102K |
| 10 | 64433 | Conception | 53 | D | 0 | $106K |
| 11 | 64434 | Conception Junction | 53 | D | 0 | $194K |
| 12 | 64457 | Guilford | 53 | D | 0 | $101K |
| 13 | 64432 | Clyde | 40 | D | 0 | $113K |
| 14 | 64476 | Pickering | 40 | D | 0 | $109K |
Recommended Buyer Guides for Nodaway County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- Best Lead Paint Test Kits — 73.5% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Nodaway County, Missouri
Overview
Nodaway County in Missouri covers 14 ZIP codes with an average Home Safety Score of C (59/100).
6 of 14 ZIP codes have recorded EPA violations. 6 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.