Pottawatomie County, Kansas
9 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-06-03
Pottawatomie County's water quality grade reflects a middle-ground assessment — its 9 ZIP codes range from fully compliant to violation-flagged.
How Pottawatomie County Compares
How Pottawatomie County Compares
Pottawatomie County scores 3 points below the Kansas state average (64/100) and 7 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Pottawatomie County, Kansas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.2 (asthma 9.7%, diabetes 9.7%)
Estimated additional annual cost per homeowner: $764, driven primarily by wildfire
Infrastructure: 0.378% avg pipe failure probability, 38% of ZIPs at high risk
64.5% of homes built before 1978 (lead paint era)
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: $764
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
5,149 housing units in Pottawatomie 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 Pottawatomie County
Remediation costs are relatively manageable for most homeowners in Pottawatomie 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 Pottawatomie 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 Pottawatomie County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Pottawatomie Company Rwd 4 | 1,125 | 14 |
| 2 | Pottawatomie Company Rwd 3 | 1,455 | 13 |
| 3 | Pottawatomie Company Rwd 2 | 865 | 13 |
| 4 | TIMBER CREEK EAST WATER DISTRICT | 850 | 12 |
| 5 | City of Olsburg, | 221 | 11 |
11 total water systems serve Pottawatomie County.
All ZIP Codes in Pottawatomie County
9 ZIP codes tracked in Pottawatomie County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 66535 | Saint George | 70 | B | 0 | $212K |
| 2 | 66549 | Westmoreland | 68 | C | 1 | $200K |
| 3 | 66422 | Emmett | 66 | C | 0 | — |
| 4 | 66432 | Havensville | 66 | C | 1 | $261K |
| 5 | 66521 | Onaga | 66 | C | 0 | $182K |
| 6 | 66520 | Olsburg | 65 | C | 11 (1 health) | $217K |
| 7 | 66407 | Belvue | 64 | C | 2 | $196K |
| 8 | 66536 | Saint Marys | 45 | D | 0 | $211K |
| 9 | 66426 | Fostoria | 40 | D | 0 | — |
Recommended Buyer Guides for Pottawatomie County
While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- Best Lead Paint Test Kits — 64.5% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Pottawatomie County, Kansas
Overview
Pottawatomie County in Kansas covers 9 ZIP codes with an average Home Safety Score of C (61/100).
4 of 9 ZIP codes have recorded EPA violations. 1 health-based violation 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.