Flood Zone Comparison
Compare key metrics between 20670 20670, MD — Zone A and 79079 79079, TX — Zone A. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 20670 20670, MD — Zone A | 79079 79079, TX — Zone A |
|---|---|---|
| name | 20670 20670, MD — Zone A | 79079 79079, TX — Zone A |
| zip code | 20670 | 79079 |
| city | 20670 | 79079 |
| state | Maryland | Texas |
| state code | MD | TX |
| category | High Risk | High Risk |
| flood zone | Zone A (High Risk — 100-Year Floodplain, No BFE) | 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 | 1,056 | 1,056 |
| base flood elevation | 17 ft | 5 ft |
| historical floods | 12 recorded flood events in the past 50 years. Most recent major flood: 2022 | 2 recorded flood events in the past 50 years. Most recent major flood: 2010 |
| nearest water | James River (4.3 miles) | Puget Sound (3.9 miles) |
| elevation ft | 484 | 120 |
| population | 23,895 | 29,737 |
| median home value | 203,274 | 547,944 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $78,995 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $172,470 |
| 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 | 5053C499J | 3845C450J |
| 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.