City vs city
Gresham vs Tri-City, OR
Tri-City currently scores 13 points higher overall than Gresham, 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 is a current EPA AirNow signal; 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 · Tri-City: 20/100
Tri-City is 13 points higher.
Flood
Gresham: 10/100 · Tri-City: 30/100
Tri-City is 20 points higher.
Gresham: FEMA NFHL flood zones: 3 features intersect this tile.
Tri-City: FEMA NFHL flood zones: 5 features intersect this tile.
Wind
Gresham: 6/100 · Tri-City: 4/100
Gresham is 2 points higher.
Gresham: Wind exposure derived from ingested design wind / climatology tiles.
Tri-City: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gresham: 1/100 · Tri-City: 2/100
Tri-City is 1 points higher.
Gresham: Lightning exposure derived from ingested climatology tiles.
Tri-City: Lightning exposure derived from ingested climatology tiles.
Tornado
Gresham: 4/100 · Tri-City: 0/100
Gresham is 4 points higher.
Gresham: Tornado risk derived from NOAA SPC historical reports.
Tri-City: Tornado risk derived from NOAA SPC historical reports.
Hail
Gresham: 3/100 · Tri-City: 1/100
Gresham is 2 points higher.
Gresham: Hail risk derived from NOAA SPC historical reports.
Tri-City: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gresham: Unavailable · Tri-City: Unavailable
A score difference cannot be calculated without both sources.
Gresham: Storm surge model is not available for this location yet.
Tri-City: Storm surge model is not available for this location yet.
Wildfire
Gresham: 15/100 · Tri-City: 69/100
Tri-City is 54 points higher.
Gresham: Wildfire exposure derived from ingested fire potential tiles.
Tri-City: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Gresham: 11/100 · Tri-City: 12/100
Tri-City is 1 points higher.
Gresham: Air quality signal derived from the latest EPA AirNow combined AQI grid.
Tri-City: Air quality signal derived from the latest EPA AirNow combined AQI grid.