Flood Zone Comparison
Compare key metrics between 15635 15635, PA — Zone A and 57361 57361, SD — Zone A. Data sourced from FEMA National Flood Hazard Layer (2025).
| Metric | 15635 15635, PA — Zone A | 57361 57361, SD — Zone A |
|---|---|---|
| name | 15635 15635, PA — Zone A | 57361 57361, SD — Zone A |
| zip code | 15635 | 57361 |
| city | 15635 | 57361 |
| state | Pennsylvania | South Dakota |
| state code | PA | SD |
| 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 | 976 | 976 |
| base flood elevation | 26 ft | 9 ft |
| historical floods | 6 recorded flood events in the past 50 years. Most recent major flood: 2004 | 11 recorded flood events in the past 50 years. Most recent major flood: 2022 |
| nearest water | Ohio River (0.3 miles) | Lake Superior (1.5 miles) |
| elevation ft | 1,827 | 903 |
| population | 69,196 | 14,874 |
| median home value | 157,906 | 474,679 |
| flood damage risk | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $29,233 | 40-60% chance of flood damage over a 30-year mortgage. Estimated average damage per flood event: $48,915 |
| 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 | 6786C197J | 4605C779J |
| 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.