Flood Zone Comparison
Compare key metrics between 21758 21758, MD — Zone AE and 46048 46048, IN — Zone AE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 21758 21758, MD — Zone AE | 46048 46048, IN — Zone AE |
|---|---|---|
| name | 21758 21758, MD — Zone AE | 46048 46048, IN — Zone AE |
| zip code | 21758 | 46048 |
| city | 21758 | 46048 |
| state | Maryland | Indiana |
| state code | MD | IN |
| 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 | 2,532 | 2,532 |
| base flood elevation | 27 ft | 19 ft |
| historical floods | 11 recorded flood events in the past 50 years. Most recent major flood: 2005 | 2 recorded flood events in the past 50 years. Most recent major flood: 2010 |
| nearest water | local river (0.4 miles) | local stream (3.4 miles) |
| elevation ft | 437 | 1,299 |
| population | 43,251 | 57,635 |
| median home value | 179,464 | 312,712 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $170,394 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $23,652 |
| 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 | 9796C683J | 7018C405J |
| 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.