Flood Zone Comparison
Compare key metrics between 02446 02446, MA — Zone A and 20373 20373, DC — Zone D. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 02446 02446, MA — Zone A | 20373 20373, DC — Zone D |
|---|---|---|
| name | 02446 02446, MA — Zone A | 20373 20373, DC — Zone D |
| zip code | 02446 | 20373 |
| city | 02446 | 20373 |
| state | Massachusetts | District of Columbia |
| state code | MA | DC |
| 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 | 833 | 833 |
| base flood elevation | 22 ft | N/A — not in Special Flood Hazard Area |
| historical floods | 10 recorded flood events in the past 50 years. Most recent major flood: 2023 | 13 recorded flood events in the past 50 years. Most recent major flood: 2004 |
| nearest water | Gulf of Mexico (2.2 miles) | Puget Sound (0.4 miles) |
| elevation ft | 1,234 | 1,407 |
| population | 18,284 | 62,008 |
| median home value | 152,672 | 424,128 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $39,267 | Unknown chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $144,002 |
| 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 | 7749C898J | 6765C925J |
| 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.