Flood Zone Comparison
Compare key metrics between 50021 50021, IA — Zone AE and 54627 54627, WI — Zone AE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 50021 50021, IA — Zone AE | 54627 54627, WI — Zone AE |
|---|---|---|
| name | 50021 50021, IA — Zone AE | 54627 54627, WI — Zone AE |
| zip code | 50021 | 54627 |
| city | 50021 | 54627 |
| state | Iowa | Wisconsin |
| state code | IA | WI |
| category | High Risk | High Risk |
| flood zone | Zone AE (High Risk — 100-Year Floodplain) | Zone AE (High Risk — 100-Year Floodplain) |
| risk level | High Risk | High Risk |
| annual flood prob | 1% annual chance (100-year flood) | 1% annual chance (100-year flood) |
| insurance required | Required for federally-backed mortgages | Required for federally-backed mortgages |
| avg annual premium | 1,296 | 1,296 |
| base flood elevation | 8 ft | 15 ft |
| historical floods | 11 recorded flood events in the past 50 years. Most recent major flood: 2005 | 6 recorded flood events in the past 50 years. Most recent major flood: 2010 |
| nearest water | Susquehanna River (0.7 miles) | Savannah River (0.7 miles) |
| elevation ft | 733 | 276 |
| population | 49,214 | 15,871 |
| median home value | 537,235 | 154,094 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $61,851 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $104,254 |
| mitigation tips | Elevate utilities above base flood elevation; install sump pumps with battery backup; consider flood-proofing ground floor; maintain flood insurance; create an emergency evacuation plan; store important documents above flood level. | Elevate utilities above base flood elevation; install sump pumps with battery backup; consider flood-proofing ground floor; maintain flood insurance; create an emergency evacuation plan; store important documents above flood level. |
| fema map id | 9110C781J | 3673C921J |
| last updated | 2025-01-01 | 2025-01-01 |
Our team analyzes data from FEMA National Flood Hazard Layer to deliver accurate, up-to-date information. All data is verified and cross-referenced with official sources.