City vs city
Markham vs Round Lake Beach, IL
Markham currently scores 3 points higher overall than Round Lake Beach, with the largest gap in tornado.
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
Markham: 42/100 · Round Lake Beach: 39/100
Markham is 3 points higher.
Flood
Markham: 43/100 · Round Lake Beach: 48/100
Round Lake Beach is 5 points higher.
Markham: FEMA NFHL flood zones: 6 features intersect this tile.
Round Lake Beach: FEMA NFHL flood zones: 14 features intersect this tile.
Wind
Markham: 16/100 · Round Lake Beach: 15/100
Markham is 1 points higher.
Markham: Wind exposure derived from ingested design wind / climatology tiles.
Round Lake Beach: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Markham: 36/100 · Round Lake Beach: 57/100
Round Lake Beach is 21 points higher.
Markham: Lightning exposure derived from ingested climatology tiles.
Round Lake Beach: Lightning exposure derived from ingested climatology tiles.
Tornado
Markham: 0/100 · Round Lake Beach: 38/100
Round Lake Beach is 38 points higher.
Markham: Tornado risk derived from NOAA SPC historical reports.
Round Lake Beach: Tornado risk derived from NOAA SPC historical reports.
Hail
Markham: 81/100 · Round Lake Beach: 57/100
Markham is 24 points higher.
Markham: Hail risk derived from NOAA SPC historical reports.
Round Lake Beach: Hail risk derived from NOAA SPC historical reports.
Storm surge
Markham: Unavailable · Round Lake Beach: Unavailable
A score difference cannot be calculated without both sources.
Markham: Storm surge model is not available for this location yet.
Round Lake Beach: Storm surge model is not available for this location yet.
Wildfire
Markham: 44/100 · Round Lake Beach: 36/100
Markham is 8 points higher.
Markham: Wildfire exposure derived from ingested fire potential tiles.
Round Lake Beach: Wildfire exposure derived from ingested fire potential tiles.
Ingested air quality
Markham: 32/100 · Round Lake Beach: 22/100
Markham is 10 points higher.
Markham: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.
Round Lake Beach: Air quality score derived from the latest ingested EPA AirNow AQI grid; may not reflect current conditions. See methodology for the recorded ingest date.