City vs city
Biddeford vs South Portland, ME
South Portland currently scores 1 points higher overall than Biddeford, with the largest gap in wildfire.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality uses an ingested EPA AirNow snapshot and may not reflect current conditions; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Biddeford: 32/100 · South Portland: 33/100
South Portland is 1 points higher.
Flood
Biddeford: 20/100 · South Portland: 39/100
South Portland is 19 points higher.
Biddeford: FEMA NFHL flood zones: 9 features intersect this tile.
South Portland: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Biddeford: 21/100 · South Portland: 20/100
Biddeford is 1 points higher.
Biddeford: Wind exposure derived from ingested design wind / climatology tiles.
South Portland: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Biddeford: 4/100 · South Portland: 4/100
No gap.
Biddeford: Lightning exposure derived from ingested climatology tiles.
South Portland: Lightning exposure derived from ingested climatology tiles.
Tornado
Biddeford: 0/100 · South Portland: 0/100
No gap.
Biddeford: Tornado risk derived from NOAA SPC historical reports.
South Portland: Tornado risk derived from NOAA SPC historical reports.
Hail
Biddeford: 12/100 · South Portland: 31/100
South Portland is 19 points higher.
Biddeford: Hail risk derived from NOAA SPC historical reports.
South Portland: Hail risk derived from NOAA SPC historical reports.
Storm surge
Biddeford: 95/100 · South Portland: 99/100
South Portland is 4 points higher.
Biddeford: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
South Portland: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Biddeford: 46/100 · South Portland: 9/100
Biddeford is 37 points higher.
Biddeford: Wildfire exposure derived from ingested fire potential tiles.
South Portland: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Biddeford: 26/100 · South Portland: 26/100
No gap.
Biddeford: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
South Portland: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.