Chickasaw County, Iowa
8 ZIP codes · Avg score 58/100 · Grade C · Updated 2026-06-04
Water safety in Chickasaw County is uneven — some of its 8 ZIP codes meet standards cleanly while others carry documented violations.
How Chickasaw County Compares
How Chickasaw County Compares
Chickasaw County scores 1 points below the Iowa state average (59/100) and 10 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Chickasaw County, Iowa
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.3 (asthma 9.7%, diabetes 12.5%)
Estimated additional annual cost per homeowner: $839, driven primarily by water_lead
Infrastructure: 0.503% avg pipe failure probability, 100% of ZIPs at high risk
79.6% 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: $839
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
5,879 housing units in Chickasaw 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 Chickasaw County
Remediation costs are relatively manageable for most homeowners in Chickasaw 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 Chickasaw 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 Chickasaw County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Fredericksburg Water Supply | 987 | 3 |
| 2 | Scenic View Estates | 78 | 3 |
| 3 | Sherman Place Water & Road, Inc. | 73 | 3 |
| 4 | Plantation Country View Subdivision | 32 | 3 |
| 5 | Nashua Water Supply | 1,551 | 3 |
11 total water systems serve Chickasaw County.
All ZIP Codes in Chickasaw County
8 ZIP codes tracked in Chickasaw County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 50630 | Fredericksburg | 69 | C | 3 | $197K |
| 2 | 50659 | New Hampton | 65 | C | 0 | $188K |
| 3 | 50603 | Alta Vista | 64 | C | 1 | $97K |
| 4 | 50658 | Nashua | 64 | C | 3 | $134K |
| 5 | 52154 | Lawler | 64 | C | 2 (1 health) | $134K |
| 6 | 50645 | Ionia | 59 | C | 0 | $113K |
| 7 | 50455 | Mc Intire | 40 | D | 0 | $119K |
| 8 | 50661 | North Washington | 40 | D | 0 | — |
Recommended Buyer Guides for Chickasaw County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- Best Lead Paint Test Kits — 79.6% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Chickasaw County, Iowa
Overview
Chickasaw County in Iowa covers 8 ZIP codes with an average Home Safety Score of C (58/100).
4 of 8 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Iowa 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.