City vs city
Flat Rock vs Mills River, NC
Mills River currently scores 10 points higher overall than Flat Rock, 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
Flat Rock: 33/100 · Mills River: 43/100
Mills River is 10 points higher.
Flood
Flat Rock: 0/100 · Mills River: 46/100
Mills River is 46 points higher.
Flat Rock: FEMA NFHL flood zones: 0 features intersect this tile.
Mills River: FEMA NFHL flood zones: 11 features intersect this tile.
Wind
Flat Rock: 16/100 · Mills River: 15/100
Flat Rock is 1 points higher.
Flat Rock: Wind exposure derived from ingested design wind / climatology tiles.
Mills River: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Flat Rock: 47/100 · Mills River: 46/100
Flat Rock is 1 points higher.
Flat Rock: Lightning exposure derived from ingested climatology tiles.
Mills River: Lightning exposure derived from ingested climatology tiles.
Tornado
Flat Rock: 0/100 · Mills River: 8/100
Mills River is 8 points higher.
Flat Rock: Tornado risk derived from NOAA SPC historical reports.
Mills River: Tornado risk derived from NOAA SPC historical reports.
Hail
Flat Rock: 55/100 · Mills River: 98/100
Mills River is 43 points higher.
Flat Rock: Hail risk derived from NOAA SPC historical reports.
Mills River: Hail risk derived from NOAA SPC historical reports.
Storm surge
Flat Rock: Unavailable · Mills River: Unavailable
A score difference cannot be calculated without both sources.
Flat Rock: Storm surge model is not available for this location yet.
Mills River: Storm surge model is not available for this location yet.
Wildfire
Flat Rock: 50/100 · Mills River: 59/100
Mills River is 9 points higher.
Flat Rock: Wildfire exposure derived from ingested fire potential tiles.
Mills River: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Flat Rock: 31/100 · Mills River: 32/100
Mills River is 1 points higher.
Flat Rock: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Mills River: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.