City vs city
Portland vs South Portland, ME
Portland and South Portland are tied on overall score, with the biggest factor difference in flood.
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
Portland: 33/100 · South Portland: 33/100
No gap.
Flood
Portland: 39/100 · South Portland: 39/100
No gap.
Portland: FEMA NFHL flood zones: 16 features intersect this tile.
South Portland: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Portland: 20/100 · South Portland: 20/100
No gap.
Portland: Wind exposure derived from ingested design wind / climatology tiles.
South Portland: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Portland: 4/100 · South Portland: 4/100
No gap.
Portland: Lightning exposure derived from ingested climatology tiles.
South Portland: Lightning exposure derived from ingested climatology tiles.
Tornado
Portland: 0/100 · South Portland: 0/100
No gap.
Portland: Tornado risk derived from NOAA SPC historical reports.
South Portland: Tornado risk derived from NOAA SPC historical reports.
Hail
Portland: 31/100 · South Portland: 31/100
No gap.
Portland: Hail risk derived from NOAA SPC historical reports.
South Portland: Hail risk derived from NOAA SPC historical reports.
Storm surge
Portland: 99/100 · South Portland: 99/100
No gap.
Portland: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
South Portland: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Portland: 9/100 · South Portland: 9/100
No gap.
Portland: Wildfire exposure derived from ingested fire potential tiles.
South Portland: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Portland: 26/100 · South Portland: 26/100
No gap.
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.
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.