City vs city
Ionia vs Portland, MI
Ionia currently scores 6 points higher overall than Portland, with the largest gap in tornado.
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
Ionia: 31/100 · Portland: 25/100
Ionia is 6 points higher.
Flood
Ionia: 66/100 · Portland: 57/100
Ionia is 9 points higher.
Ionia: FEMA NFHL flood zones: 5 features intersect this tile.
Portland: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Ionia: 15/100 · Portland: 15/100
No gap.
Ionia: Wind exposure derived from ingested design wind / climatology tiles.
Portland: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Ionia: 21/100 · Portland: 25/100
Portland is 4 points higher.
Ionia: Lightning exposure derived from ingested climatology tiles.
Portland: Lightning exposure derived from ingested climatology tiles.
Tornado
Ionia: 0/100 · Portland: 19/100
Portland is 19 points higher.
Ionia: Tornado risk derived from NOAA SPC historical reports.
Portland: Tornado risk derived from NOAA SPC historical reports.
Hail
Ionia: 12/100 · Portland: 5/100
Ionia is 7 points higher.
Ionia: Hail risk derived from NOAA SPC historical reports.
Portland: Hail risk derived from NOAA SPC historical reports.
Storm surge
Ionia: Unavailable · Portland: Unavailable
A score difference cannot be calculated without both sources.
Ionia: Storm surge model is not available for this location yet.
Portland: Storm surge model is not available for this location yet.
Wildfire
Ionia: 41/100 · Portland: 24/100
Ionia is 17 points higher.
Ionia: Wildfire exposure derived from ingested fire potential tiles.
Portland: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Ionia: 28/100 · Portland: 30/100
Portland is 2 points higher.
Ionia: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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.