Flood Zone Comparison
Compare key metrics between 21903 21903, MD — Zone VE and 70123 70123, LA — Zone VE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 21903 21903, MD — Zone VE | 70123 70123, LA — Zone VE |
|---|---|---|
| name | 21903 21903, MD — Zone VE | 70123 70123, LA — Zone VE |
| zip code | 21903 | 70123 |
| city | 21903 | 70123 |
| state | Maryland | Louisiana |
| state code | MD | LA |
| category | Very High Risk | Very High Risk |
| flood zone | Zone VE (Very High Risk — Coastal 100-Year + Wave Action) | Zone VE (Very High Risk — Coastal 100-Year + Wave Action) |
| risk level | Very High Risk | Very High Risk |
| annual flood prob | 1% annual chance with velocity wave action | 1% annual chance with velocity wave action |
| insurance required | Required — highest risk coastal zone | Required — highest risk coastal zone |
| avg annual premium | 6,755 | 6,772 |
| base flood elevation | 13 ft | 26 ft |
| historical floods | 8 recorded flood events in the past 50 years. Most recent major flood: 2021 | 10 recorded flood events in the past 50 years. Most recent major flood: 2015 |
| nearest water | Lake Michigan (0.9 miles) | Galveston Bay (2.2 miles) |
| elevation ft | 1,073 | 35 |
| population | 51,254 | 6,988 |
| median home value | 115,026 | 319,421 |
| flood damage risk | 65-80% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $166,801 | 65-80% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $116,966 |
| mitigation tips | Reinforce foundation against wave action; install storm shutters; elevate entire structure if possible; maintain maximum flood insurance coverage; establish evacuation routes; consider relocating critical infrastructure to upper floors. | Reinforce foundation against wave action; install storm shutters; elevate entire structure if possible; maintain maximum flood insurance coverage; establish evacuation routes; consider relocating critical infrastructure to upper floors. |
| fema map id | 8463C970J | 8903C733J |
| 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.