Calhoun County, Iowa
9 ZIP codes · Home Safety Score unavailable · 0 of 9 tracked ZIP records scored · Updated
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Calhoun County, Iowa
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.2 (asthma 9.8%, diabetes 12.3%)
Estimated additional annual cost per homeowner: $1,217, driven primarily by energy_code_gap
86.3% 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,217
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
4,793 housing units in Calhoun 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 Calhoun County
Remediation costs are relatively manageable for most homeowners in Calhoun 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 Calhoun County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Calhoun County
4 community water systems serving Calhoun County.
Systems with the most violations in Calhoun County
3 water systems with recorded EPA violations.
All ZIP Codes in Calhoun County
9 ZIP codes tracked in Calhoun County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 50538 | Farnhamville | — | — | 0 | $71K |
| 2 | 50551 | Jolley | — | — | 1 | $51K |
| 3 | 50552 | Knierim | — | — | — | |
| 4 | 50563 | Manson | — | — | 2 | $157K |
| 5 | 50575 | Pomeroy | — | — | 3 | $77K |
| 6 | 50579 | Rockwell City | — | — | 1 | $137K |
| 7 | 50586 | Somers | — | — | $108K | |
| 8 | 51449 | Lake City | — | — | 2 | $119K |
| 9 | 51453 | Lohrville | — | — | 0 | $56K |
Recommended Buyer Guides for Calhoun County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 86.3% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Overview
Calhoun County in Iowa covers 9 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.
5 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
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Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.