Flood Zone Comparison
Compare key metrics between 50573 50573, IA — Zone A and 83855 83855, ID — Zone A. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 50573 50573, IA — Zone A | 83855 83855, ID — Zone A |
|---|---|---|
| name | 50573 50573, IA — Zone A | 83855 83855, ID — Zone A |
| zip code | 50573 | 83855 |
| city | 50573 | 83855 |
| state | Iowa | Idaho |
| state code | IA | ID |
| category | High Risk | High Risk |
| flood zone | Zone A (High Risk — 100-Year Floodplain, No BFE) | Zone A (High Risk — 100-Year Floodplain, No BFE) |
| 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 | 2,397 | 2,397 |
| base flood elevation | 11 ft | 17 ft |
| historical floods | 3 recorded flood events in the past 50 years. Most recent major flood: 2020 | 15 recorded flood events in the past 50 years. Most recent major flood: 2008 |
| nearest water | Chesapeake Bay (2.1 miles) | Lake Ontario (1.9 miles) |
| elevation ft | 1,458 | 2,099 |
| population | 64,169 | 10,613 |
| median home value | 113,684 | 740,693 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $161,812 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $40,831 |
| 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 | 8225C405J | 3048C758J |
| 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.