City vs city
Knoxville vs New Johnsonville, TN
New Johnsonville currently scores 2 points higher overall than Knoxville, 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
Knoxville: 34/100 · New Johnsonville: 36/100
New Johnsonville is 2 points higher.
Flood
Knoxville: 28/100 · New Johnsonville: 68/100
New Johnsonville is 40 points higher.
Knoxville: FEMA NFHL flood zones: 4 features intersect this tile.
New Johnsonville: FEMA NFHL flood zones: 10 features intersect this tile.
Wind
Knoxville: 13/100 · New Johnsonville: 14/100
New Johnsonville is 1 points higher.
Knoxville: Wind exposure derived from ingested design wind / climatology tiles.
New Johnsonville: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Knoxville: 41/100 · New Johnsonville: 70/100
New Johnsonville is 29 points higher.
Knoxville: Lightning exposure derived from ingested climatology tiles.
New Johnsonville: Lightning exposure derived from ingested climatology tiles.
Tornado
Knoxville: 0/100 · New Johnsonville: 4/100
New Johnsonville is 4 points higher.
Knoxville: Tornado risk derived from NOAA SPC historical reports.
New Johnsonville: Tornado risk derived from NOAA SPC historical reports.
Hail
Knoxville: 43/100 · New Johnsonville: 28/100
Knoxville is 15 points higher.
Knoxville: Hail risk derived from NOAA SPC historical reports.
New Johnsonville: Hail risk derived from NOAA SPC historical reports.
Storm surge
Knoxville: Unavailable · New Johnsonville: Unavailable
A score difference cannot be calculated without both sources.
Knoxville: Storm surge model is not available for this location yet.
New Johnsonville: Storm surge model is not available for this location yet.
Wildfire
Knoxville: 47/100 · New Johnsonville: 37/100
Knoxville is 10 points higher.
Knoxville: Wildfire exposure derived from ingested fire potential tiles.
New Johnsonville: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Knoxville: 33/100 · New Johnsonville: 29/100
Knoxville is 4 points higher.
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.
New Johnsonville: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.