Flood Zone Comparison
Compare key metrics between 28470 28470, NC — Zone AE and 50038 50038, IA — Zone A. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 28470 28470, NC — Zone AE | 50038 50038, IA — Zone A |
|---|---|---|
| name | 28470 28470, NC — Zone AE | 50038 50038, IA — Zone A |
| zip code | 28470 | 50038 |
| city | 28470 | 50038 |
| state | North Carolina | Iowa |
| state code | NC | 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 | 2,905 | 2,905 |
| base flood elevation | 28 ft | 23 ft |
| historical floods | 2 recorded flood events in the past 50 years. Most recent major flood: 2009 | 9 recorded flood events in the past 50 years. Most recent major flood: 2022 |
| nearest water | Merrimack River (2.1 miles) | Lake Huron (4.4 miles) |
| elevation ft | 988 | 96 |
| population | 35,837 | 63,409 |
| median home value | 722,534 | 791,805 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $60,152 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $22,728 |
| 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 | 3764C567J | 2186C528J |
| 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.