Flood Zone Comparison
Compare key metrics between 03031 03031, NH — Zone A and 33001 Long Key, FL — Zone AE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 03031 03031, NH — Zone A | 33001 Long Key, FL — Zone AE |
|---|---|---|
| name | 03031 03031, NH — Zone A | 33001 Long Key, FL — Zone AE |
| zip code | 03031 | 33001 |
| city | 03031 | Long Key |
| state | New Hampshire | Florida |
| state code | NH | FL |
| category | High Risk | High Risk |
| flood zone | Zone A (High Risk — 100-Year Floodplain, No BFE) | 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 | 1,589 | 1,589 |
| base flood elevation | 22 ft | 28 ft |
| historical floods | 2 recorded flood events in the past 50 years. Most recent major flood: 2006 | 14 recorded flood events in the past 50 years. Most recent major flood: 2005 |
| nearest water | Lake Ontario (4.5 miles) | Connecticut River (0.3 miles) |
| elevation ft | 424 | 6 |
| population | 52,553 | 44,708 |
| median home value | 265,697 | 176,017 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $86,758 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $134,134 |
| 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 | 1720C608J | 8508C129J |
| 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.