Flood Zone Comparison
Compare key metrics between 50039 50039, IA — Zone A and 80501 Longmont, CO — Zone D. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 50039 50039, IA — Zone A | 80501 Longmont, CO — Zone D |
|---|---|---|
| name | 50039 50039, IA — Zone A | 80501 Longmont, CO — Zone D |
| zip code | 50039 | 80501 |
| city | 50039 | Longmont |
| state | Iowa | Colorado |
| state code | IA | CO |
| category | High Risk | Undetermined |
| flood zone | Zone A (High Risk — 100-Year Floodplain, No BFE) | Zone D (Undetermined Risk — No Analysis Performed) |
| risk level | High Risk | Undetermined |
| annual flood prob | 1% annual chance (100-year flood) | Unknown — flood risk not yet determined by FEMA |
| insurance required | Required for federally-backed mortgages | Recommended — risk is undetermined |
| avg annual premium | 908 | 908 |
| base flood elevation | 7 ft | N/A — not in Special Flood Hazard Area |
| historical floods | 7 recorded flood events in the past 50 years. Most recent major flood: 2007 | 2 recorded flood events in the past 50 years. Most recent major flood: 2023 |
| nearest water | Merrimack River (4.9 miles) | Connecticut River (2.3 miles) |
| elevation ft | 559 | 4,633 |
| population | 4,343 | 2,125 |
| median home value | 507,599 | 507,156 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $57,363 | Unknown chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $109,137 |
| 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. | Purchase flood insurance as a precaution; research historical flooding in your area; contact your local floodplain administrator; maintain proper drainage; prepare an emergency kit and evacuation plan. |
| fema map id | 8360C756J | 6764C749J |
| 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.