City vs city
Collierville vs Knoxville, TN
Knoxville currently scores 3 points higher overall than Collierville, 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
Collierville: 39/100 · Knoxville: 42/100
Knoxville is 3 points higher.
Flood
Collierville: 50/100 · Knoxville: 29/100
Collierville is 21 points higher.
Collierville: FEMA NFHL flood zones: 11 features intersect this tile.
Knoxville: FEMA NFHL flood zones: 7 features intersect this tile.
Wind
Collierville: 14/100 · Knoxville: 13/100
Collierville is 1 points higher.
Collierville: Wind exposure derived from ingested design wind / climatology tiles.
Knoxville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Collierville: 64/100 · Knoxville: 40/100
Collierville is 24 points higher.
Collierville: Lightning exposure derived from ingested climatology tiles.
Knoxville: Lightning exposure derived from ingested climatology tiles.
Tornado
Collierville: 15/100 · Knoxville: 31/100
Knoxville is 16 points higher.
Collierville: Tornado risk derived from NOAA SPC historical reports.
Knoxville: Tornado risk derived from NOAA SPC historical reports.
Hail
Collierville: 55/100 · Knoxville: 100/100
Knoxville is 45 points higher.
Collierville: Hail risk derived from NOAA SPC historical reports.
Knoxville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Collierville: Unavailable · Knoxville: Unavailable
A score difference cannot be calculated without both sources.
Collierville: Storm surge model is not available for this location yet.
Knoxville: Storm surge model is not available for this location yet.
Wildfire
Collierville: 51/100 · Knoxville: 48/100
Collierville is 3 points higher.
Collierville: Wildfire exposure derived from ingested fire potential tiles.
Knoxville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Collierville: 25/100 · Knoxville: 33/100
Knoxville is 8 points higher.
Collierville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Knoxville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.