City vs city
National City vs San Francisco, CA
National City currently scores 10 points higher overall than San Francisco, 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 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
National City: 29/100 · San Francisco: 19/100
National City is 10 points higher.
Flood
National City: 76/100 · San Francisco: 56/100
National City is 20 points higher.
National City: FEMA NFHL flood zones: 20 features intersect this tile.
San Francisco: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
National City: 6/100 · San Francisco: 2/100
National City is 4 points higher.
National City: Wind exposure derived from ingested design wind / climatology tiles.
San Francisco: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
National City: 1/100 · San Francisco: 0/100
National City is 1 points higher.
National City: Lightning exposure derived from ingested climatology tiles.
San Francisco: Lightning exposure derived from ingested climatology tiles.
Tornado
National City: 0/100 · San Francisco: 0/100
No gap.
National City: Tornado risk derived from NOAA SPC historical reports.
San Francisco: Tornado risk derived from NOAA SPC historical reports.
Hail
National City: 3/100 · San Francisco: 3/100
No gap.
National City: Hail risk derived from NOAA SPC historical reports.
San Francisco: Hail risk derived from NOAA SPC historical reports.
Storm surge
National City: Unavailable · San Francisco: Unavailable
A score difference cannot be calculated without both sources.
National City: Storm surge model is not available for this location yet.
San Francisco: Storm surge model is not available for this location yet.
Wildfire
National City: 64/100 · San Francisco: 8/100
National City is 56 points higher.
National City: Wildfire exposure derived from ingested fire potential tiles.
San Francisco: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
National City: 24/100 · San Francisco: 25/100
San Francisco is 1 points higher.
National 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.
San Francisco: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.