City vs city
Hiram vs Powder Springs, GA
Powder Springs currently scores 8 points higher overall than Hiram, 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
Hiram: 42/100 · Powder Springs: 50/100
Powder Springs is 8 points higher.
Flood
Hiram: 33/100 · Powder Springs: 45/100
Powder Springs is 12 points higher.
Hiram: FEMA NFHL flood zones: 10 features intersect this tile.
Powder Springs: FEMA NFHL flood zones: 20 features intersect this tile.
Wind
Hiram: 15/100 · Powder Springs: 15/100
No gap.
Hiram: Wind exposure derived from ingested design wind / climatology tiles.
Powder Springs: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Hiram: 60/100 · Powder Springs: 61/100
Powder Springs is 1 points higher.
Hiram: Lightning exposure derived from ingested climatology tiles.
Powder Springs: Lightning exposure derived from ingested climatology tiles.
Tornado
Hiram: 23/100 · Powder Springs: 42/100
Powder Springs is 19 points higher.
Hiram: Tornado risk derived from NOAA SPC historical reports.
Powder Springs: Tornado risk derived from NOAA SPC historical reports.
Hail
Hiram: 62/100 · Powder Springs: 100/100
Powder Springs is 38 points higher.
Hiram: Hail risk derived from NOAA SPC historical reports.
Powder Springs: Hail risk derived from NOAA SPC historical reports.
Storm surge
Hiram: Unavailable · Powder Springs: Unavailable
A score difference cannot be calculated without both sources.
Hiram: Storm surge model is not available for this location yet.
Powder Springs: Storm surge model is not available for this location yet.
Wildfire
Hiram: 70/100 · Powder Springs: 52/100
Hiram is 18 points higher.
Hiram: Wildfire exposure derived from ingested fire potential tiles.
Powder Springs: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Hiram: 34/100 · Powder Springs: 34/100
No gap.
Hiram: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Powder Springs: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
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