City vs city
Alpharetta vs Johns Creek, GA
Alpharetta and Johns Creek are tied on overall score, with the biggest factor difference 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
Alpharetta: 46/100 · Johns Creek: 46/100
No gap.
Flood
Alpharetta: 36/100 · Johns Creek: 36/100
No gap.
Alpharetta: FEMA NFHL flood zones: 9 features intersect this tile.
Johns Creek: FEMA NFHL flood zones: 9 features intersect this tile.
Wind
Alpharetta: 15/100 · Johns Creek: 15/100
No gap.
Alpharetta: Wind exposure derived from ingested design wind / climatology tiles.
Johns Creek: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Alpharetta: 58/100 · Johns Creek: 58/100
No gap.
Alpharetta: Lightning exposure derived from ingested climatology tiles.
Johns Creek: Lightning exposure derived from ingested climatology tiles.
Tornado
Alpharetta: 15/100 · Johns Creek: 15/100
No gap.
Alpharetta: Tornado risk derived from NOAA SPC historical reports.
Johns Creek: Tornado risk derived from NOAA SPC historical reports.
Hail
Alpharetta: 100/100 · Johns Creek: 100/100
No gap.
Alpharetta: Hail risk derived from NOAA SPC historical reports.
Johns Creek: Hail risk derived from NOAA SPC historical reports.
Storm surge
Alpharetta: Unavailable · Johns Creek: Unavailable
A score difference cannot be calculated without both sources.
Alpharetta: Storm surge model is not available for this location yet.
Johns Creek: Storm surge model is not available for this location yet.
Wildfire
Alpharetta: 65/100 · Johns Creek: 65/100
No gap.
Alpharetta: Wildfire exposure derived from ingested fire potential tiles.
Johns Creek: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Alpharetta: 31/100 · Johns Creek: 31/100
No gap.
Alpharetta: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Johns Creek: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.