Flood Zone Comparison
Compare key metrics between 48801 Alma, MI — Zone AE and 50424 50424, IA — Zone A. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 48801 Alma, MI — Zone AE | 50424 50424, IA — Zone A |
|---|---|---|
| name | 48801 Alma, MI — Zone AE | 50424 50424, IA — Zone A |
| zip code | 48801 | 50424 |
| city | Alma | 50424 |
| state | Michigan | Iowa |
| state code | MI | IA |
| category | High Risk | High Risk |
| flood zone | Zone AE (High Risk — 100-Year Floodplain) | 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 | 3,000 | 3,000 |
| base flood elevation | 17 ft | 15 ft |
| historical floods | 7 recorded flood events in the past 50 years. Most recent major flood: 2011 | 14 recorded flood events in the past 50 years. Most recent major flood: 2021 |
| nearest water | Red River (1.7 miles) | Mississippi River (3.6 miles) |
| elevation ft | 1,959 | 1,897 |
| population | 70,908 | 5,328 |
| median home value | 323,579 | 678,811 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $68,090 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $63,456 |
| 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 | 6197C866J | 8326C315J |
| 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.