City vs city
Gresham vs Happy Valley, OR
Happy Valley currently scores 15 points higher overall than Gresham, with the largest gap 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
Gresham: 7/100 · Happy Valley: 22/100
Happy Valley is 15 points higher.
Flood
Gresham: 10/100 · Happy Valley: 62/100
Happy Valley is 52 points higher.
Gresham: FEMA NFHL flood zones: 3 features intersect this tile.
Happy Valley: FEMA NFHL flood zones: 8 features intersect this tile.
Wind
Gresham: 6/100 · Happy Valley: 6/100
No gap.
Gresham: Wind exposure derived from ingested design wind / climatology tiles.
Happy Valley: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Gresham: 1/100 · Happy Valley: 1/100
No gap.
Gresham: Lightning exposure derived from ingested climatology tiles.
Happy Valley: Lightning exposure derived from ingested climatology tiles.
Tornado
Gresham: 4/100 · Happy Valley: 0/100
Gresham is 4 points higher.
Gresham: Tornado risk derived from NOAA SPC historical reports.
Happy Valley: Tornado risk derived from NOAA SPC historical reports.
Hail
Gresham: 3/100 · Happy Valley: 1/100
Gresham is 2 points higher.
Gresham: Hail risk derived from NOAA SPC historical reports.
Happy Valley: Hail risk derived from NOAA SPC historical reports.
Storm surge
Gresham: Unavailable · Happy Valley: Unavailable
A score difference cannot be calculated without both sources.
Gresham: Storm surge model is not available for this location yet.
Happy Valley: Storm surge model is not available for this location yet.
Wildfire
Gresham: 15/100 · Happy Valley: 52/100
Happy Valley is 37 points higher.
Gresham: Wildfire exposure derived from ingested fire potential tiles.
Happy Valley: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Gresham: 11/100 · Happy Valley: 10/100
Gresham is 1 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.
Happy Valley: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.