Flood Zone Comparison
Compare key metrics between 20171 20171, DC — Zone A and 49266 49266, MI — Zone AE. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 20171 20171, DC — Zone A | 49266 49266, MI — Zone AE |
|---|---|---|
| name | 20171 20171, DC — Zone A | 49266 49266, MI — Zone AE |
| zip code | 20171 | 49266 |
| city | 20171 | 49266 |
| state | District of Columbia | Michigan |
| state code | DC | MI |
| category | High Risk | High Risk |
| flood zone | Zone A (High Risk — 100-Year Floodplain, No BFE) | 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 | 2,399 | 2,399 |
| base flood elevation | 28 ft | 26 ft |
| historical floods | 5 recorded flood events in the past 50 years. Most recent major flood: 2011 | 4 recorded flood events in the past 50 years. Most recent major flood: 2016 |
| nearest water | Missouri River (1.2 miles) | Connecticut River (1.9 miles) |
| elevation ft | 1,807 | 1,401 |
| population | 16,295 | 71,152 |
| median home value | 416,205 | 532,037 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $69,027 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $187,540 |
| 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 | 5611C357J | 5106C968J |
| 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.