City vs city
Old Town vs South Portland, ME
South Portland currently scores 8 points higher overall than Old Town, 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
Old Town: 25/100 · South Portland: 33/100
South Portland is 8 points higher.
Flood
Old Town: 47/100 · South Portland: 39/100
Old Town is 8 points higher.
Old Town: FEMA NFHL flood zones: 17 features intersect this tile.
South Portland: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Old Town: 16/100 · South Portland: 20/100
South Portland is 4 points higher.
Old Town: Wind exposure derived from ingested design wind / climatology tiles.
South Portland: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Old Town: 5/100 · South Portland: 4/100
Old Town is 1 points higher.
Old Town: Lightning exposure derived from ingested climatology tiles.
South Portland: Lightning exposure derived from ingested climatology tiles.
Tornado
Old Town: 0/100 · South Portland: 0/100
No gap.
Old Town: Tornado risk derived from NOAA SPC historical reports.
South Portland: Tornado risk derived from NOAA SPC historical reports.
Hail
Old Town: 4/100 · South Portland: 31/100
South Portland is 27 points higher.
Old Town: Hail risk derived from NOAA SPC historical reports.
South Portland: Hail risk derived from NOAA SPC historical reports.
Storm surge
Old Town: Unavailable · South Portland: 99/100
A score difference cannot be calculated without both sources.
Old Town: Storm surge model is not available for this location yet.
South Portland: Storm surge exposure derived from NOAA SLOSH MOM (AGL) data.
Wildfire
Old Town: 58/100 · South Portland: 9/100
Old Town is 49 points higher.
Old Town: Wildfire exposure derived from ingested fire potential tiles.
South Portland: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Old Town: 21/100 · South Portland: 26/100
South Portland is 5 points higher.
Old Town: 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.