City vs city
Gresham vs Island City, OR
Island City currently scores 14 points higher overall than Gresham, with the largest gap in hail.
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
Gresham: 7/100 · Island City: 21/100
Island City is 14 points higher.
Flood
Gresham: 10/100 · Island City: 0/100
Gresham is 10 points higher.
Gresham: FEMA NFHL flood zones: 3 features intersect this tile.
Island City: FEMA NFHL flood zones: 0 features intersect this tile.
Wind
Gresham: 6/100 · Island City: 10/100
Island City is 4 points higher.
Gresham: Wind exposure derived from ingested design wind / climatology tiles.
Island City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gresham: 1/100 · Island City: 13/100
Island City is 12 points higher.
Gresham: Lightning exposure derived from ingested climatology tiles.
Island City: Lightning exposure derived from ingested climatology tiles.
Tornado
Gresham: 4/100 · Island City: 4/100
No gap.
Gresham: Tornado risk derived from NOAA SPC historical reports.
Island City: Tornado risk derived from NOAA SPC historical reports.
Hail
Gresham: 3/100 · Island City: 50/100
Island City is 47 points higher.
Gresham: Hail risk derived from NOAA SPC historical reports.
Island City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gresham: Unavailable · Island City: Unavailable
A score difference cannot be calculated without both sources.
Gresham: Storm surge model is not available for this location yet.
Island City: Storm surge model is not available for this location yet.
Wildfire
Gresham: 15/100 · Island City: 58/100
Island City is 43 points higher.
Gresham: Wildfire exposure derived from ingested fire potential tiles.
Island City: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gresham: 11/100 · Island City: 9/100
Gresham is 2 points higher.
Gresham: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Island City: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.