Calhoun County, Iowa
9 ZIP codes · Home Safety Score unavailable · 0 of 9 tracked ZIP records scored
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
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%)
Modeled additional annual cost estimate per homeowner: $733, largest modeled factor: Energy Code Gap
80% of homes built before 1980 (lead paint was banned for residential use in 1978)
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 DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $733
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).
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 mapped to Calhoun County ZIP codes
4 community water systems mapped to Calhoun County ZIP codes; EPA may list more systems serving the county.
Systems with the most violations in Calhoun County
3 water systems with violations in EPA records.
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
Up to five guides, picked by rule.
- Best Lead Paint Test Kits — 80% of homes built before 1980
- 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.
← Back to Iowa Home Safety Profile
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.