City vs city
Mercer Island vs Olympia, WA
Olympia currently scores 28 points higher overall than Mercer Island, 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
Mercer Island: 8/100 · Olympia: 36/100
Olympia is 28 points higher.
Flood
Mercer Island: 22/100 · Olympia: 42/100
Olympia is 20 points higher.
Mercer Island: FEMA NFHL flood zones: 2 features intersect this tile.
Olympia: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Mercer Island: 7/100 · Olympia: 16/100
Olympia is 9 points higher.
Mercer Island: Wind exposure derived from ingested design wind / climatology tiles.
Olympia: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Mercer Island: 1/100 · Olympia: 40/100
Olympia is 39 points higher.
Mercer Island: Lightning exposure derived from ingested climatology tiles.
Olympia: Lightning exposure derived from ingested climatology tiles.
Tornado
Mercer Island: 8/100 · Olympia: 0/100
Mercer Island is 8 points higher.
Mercer Island: Tornado risk derived from NOAA SPC historical reports.
Olympia: Tornado risk derived from NOAA SPC historical reports.
Hail
Mercer Island: 1/100 · Olympia: 84/100
Olympia is 83 points higher.
Mercer Island: Hail risk derived from NOAA SPC historical reports.
Olympia: Hail risk derived from NOAA SPC historical reports.
Storm surge
Mercer Island: Unavailable · Olympia: Unavailable
A score difference cannot be calculated without both sources.
Mercer Island: Storm surge model is not available for this location yet.
Olympia: Storm surge model is not available for this location yet.
Wildfire
Mercer Island: 8/100 · Olympia: 5/100
Mercer Island is 3 points higher.
Mercer Island: Wildfire exposure derived from ingested fire potential tiles.
Olympia: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Mercer Island: 9/100 · Olympia: 27/100
Olympia is 18 points higher.
Mercer Island: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Olympia: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.