Marion County, Kansas
10 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-06-03
Tracking 10 ZIP codes in Marion County reveals a mixed picture — tap water quality varies meaningfully by location.
How Marion County Compares
How Marion County Compares
Marion County scores 4 points below the Kansas state average (64/100) and 8 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Marion County, Kansas
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%, diabetes 12.2%)
Estimated additional annual cost per homeowner: $917, driven primarily by water_lead
Infrastructure: 0.484% avg pipe failure probability, 90% of ZIPs at high risk
82.2% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Marion County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 5 violations. Past 5 years: 7 total (7 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: $917
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
5,496 housing units in Marion 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 Marion 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 Marion 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 Marion County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Marion Company Rwd 4 | 1,398 | 29 |
| 2 | Harvey Company Rwd 1 | 3,000 | 25 |
| 3 | City of Peabody, | 932 | 11 |
| 4 | BUTLER CO RWD 3 | 1,494 | 8 |
| 5 | City of Burns, | 232 | 8 |
14 total water systems serve Marion County.
All ZIP Codes in Marion County
10 ZIP codes tracked in Marion County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 66861 | Marion | 68 | C | 2 | $128K |
| 2 | 67438 | Durham | 68 | C | 5 | $51K |
| 3 | 67053 | Goessel | 67 | C | 3 | $97K |
| 4 | 66866 | Peabody | 66 | C | 11 (1 health) | $97K |
| 5 | 67073 | Lehigh | 65 | C | 2 | $121K |
| 6 | 66851 | Florence | 63 | C | 8 (4 health) | $55K |
| 7 | 67063 | Hillsboro | 62 | C | 6 | $145K |
| 8 | 66840 | Burns | 61 | C | 8 (1 health) | $88K |
| 9 | 66858 | Lincolnville | 40 | D | 0 | $80K |
| 10 | 67483 | Tampa | 40 | D | 0 | $95K |
Recommended Buyer Guides for Marion County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 82.2% 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 Marion County, Kansas
Overview
Marion County in Kansas covers 10 ZIP codes with an average Home Safety Score of C (60/100).
8 of 10 ZIP codes have recorded EPA violations. 6 health-based violations have been documented.
← Back to Kansas 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.