Flood Zone Comparison
Compare key metrics between 21074 21074, MD — Zone AE and 22312 22312, VA — Zone AE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 21074 21074, MD — Zone AE | 22312 22312, VA — Zone AE |
|---|---|---|
| name | 21074 21074, MD — Zone AE | 22312 22312, VA — Zone AE |
| zip code | 21074 | 22312 |
| city | 21074 | 22312 |
| state | Maryland | Virginia |
| state code | MD | VA |
| category | High Risk | High Risk |
| flood zone | Zone AE (High Risk — 100-Year Floodplain) | 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 | 3,474 | 3,472 |
| base flood elevation | 30 ft | 25 ft |
| historical floods | 11 recorded flood events in the past 50 years. Most recent major flood: 2005 | 1 recorded flood events in the past 50 years. Most recent major flood: 2016 |
| nearest water | Susquehanna River (2.2 miles) | Hudson River (0.1 miles) |
| elevation ft | 486 | 506 |
| population | 15,791 | 33,136 |
| median home value | 350,460 | 697,703 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $70,269 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $102,601 |
| 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 | 9880C816J | 4771C172J |
| 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.