Osborne County, Kansas
6 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-06-03
Although much of Osborne County meets baseline standards, some of its 6 ZIP codes show violations that merit closer attention.
How Osborne County Compares
How Osborne County Compares
Osborne County scores 9 points below the Kansas state average (64/100) and 13 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Osborne County, Kansas
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%, diabetes 13.9%)
Estimated additional annual cost per homeowner: $770, driven primarily by water_lead
Infrastructure: 0.533% avg pipe failure probability, 83% of ZIPs at high risk
93.8% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Osborne County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 8 violations. Past 5 years: 19 total (19 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: $770
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,218 housing units in Osborne 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 Osborne 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 Osborne 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 Osborne County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Rooks Company Rwd 3 | 380 | 22 |
| 2 | City of Natoma, | 300 | 22 |
| 3 | Osborne Company Rwd 2 | 60 | 22 |
| 4 | City of Alton, | 100 | 10 |
| 5 | Osborne Company Rwd 1a | 81 | 10 |
9 total water systems serve Osborne County.
All ZIP Codes in Osborne County
6 ZIP codes tracked in Osborne County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 67437 | Downs | 64 | C | 1 | $109K |
| 2 | 67623 | Alton | 64 | C | 10 (1 health) | — |
| 3 | 67473 | Osborne | 61 | C | 4 | $88K |
| 4 | 67651 | Natoma | 56 | C | 22 (14 health) | $31K |
| 5 | 67474 | Portis | 46 | D | 3 (1 health) | $47K |
| 6 | 67628 | Cedar | 40 | D | 0 | — |
Recommended Buyer Guides for Osborne 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 Lead Paint Test Kits — 93.8% 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 Osborne County, Kansas
Overview
Osborne County in Kansas covers 6 ZIP codes with an average Home Safety Score of C (55/100).
5 of 6 ZIP codes have recorded EPA violations. 16 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.