City vs city
Memphis vs Mercer, TN
Memphis currently scores 7 points higher overall than Mercer, with the largest gap in tornado.
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
Memphis: 51/100 · Mercer: 44/100
Memphis is 7 points higher.
Flood
Memphis: 38/100 · Mercer: 100/100
Mercer is 62 points higher.
Memphis: FEMA NFHL flood zones: 8 features intersect this tile.
Mercer: FEMA NFHL flood zones: 16 features intersect this tile.
Wind
Memphis: 14/100 · Mercer: 14/100
No gap.
Memphis: Wind exposure derived from ingested design wind / climatology tiles.
Mercer: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Memphis: 62/100 · Mercer: 64/100
Mercer is 2 points higher.
Memphis: Lightning exposure derived from ingested climatology tiles.
Mercer: Lightning exposure derived from ingested climatology tiles.
Tornado
Memphis: 81/100 · Mercer: 0/100
Memphis is 81 points higher.
Memphis: Tornado risk derived from NOAA SPC historical reports.
Mercer: Tornado risk derived from NOAA SPC historical reports.
Hail
Memphis: 90/100 · Mercer: 14/100
Memphis is 76 points higher.
Memphis: Hail risk derived from NOAA SPC historical reports.
Mercer: Hail risk derived from NOAA SPC historical reports.
Storm surge
Memphis: Unavailable · Mercer: Unavailable
A score difference cannot be calculated without both sources.
Memphis: Storm surge model is not available for this location yet.
Mercer: Storm surge model is not available for this location yet.
Wildfire
Memphis: 44/100 · Mercer: 46/100
Mercer is 2 points higher.
Memphis: Wildfire exposure derived from ingested fire potential tiles.
Mercer: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Memphis: 26/100 · Mercer: 27/100
Mercer is 1 points higher.
Memphis: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mercer: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.