City vs city
Round Lake Beach vs St. Charles, IL
Round Lake Beach currently scores 4 points higher overall than St. Charles, 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 is a current EPA AirNow signal; 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
Round Lake Beach: 39/100 · St. Charles: 35/100
Round Lake Beach is 4 points higher.
Flood
Round Lake Beach: 48/100 · St. Charles: 36/100
Round Lake Beach is 12 points higher.
Round Lake Beach: FEMA NFHL flood zones: 14 features intersect this tile.
St. Charles: FEMA NFHL flood zones: 6 features intersect this tile.
Wind
Round Lake Beach: 15/100 · St. Charles: 16/100
St. Charles is 1 points higher.
Round Lake Beach: Wind exposure derived from ingested design wind / climatology tiles.
St. Charles: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Round Lake Beach: 57/100 · St. Charles: 50/100
Round Lake Beach is 7 points higher.
Round Lake Beach: Lightning exposure derived from ingested climatology tiles.
St. Charles: Lightning exposure derived from ingested climatology tiles.
Tornado
Round Lake Beach: 38/100 · St. Charles: 15/100
Round Lake Beach is 23 points higher.
Round Lake Beach: Tornado risk derived from NOAA SPC historical reports.
St. Charles: Tornado risk derived from NOAA SPC historical reports.
Hail
Round Lake Beach: 57/100 · St. Charles: 76/100
St. Charles is 19 points higher.
Round Lake Beach: Hail risk derived from NOAA SPC historical reports.
St. Charles: Hail risk derived from NOAA SPC historical reports.
Storm surge
Round Lake Beach: Unavailable · St. Charles: Unavailable
A score difference cannot be calculated without both sources.
Round Lake Beach: Storm surge model is not available for this location yet.
St. Charles: Storm surge model is not available for this location yet.
Wildfire
Round Lake Beach: 36/100 · St. Charles: 23/100
Round Lake Beach is 13 points higher.
Round Lake Beach: Wildfire exposure derived from ingested fire potential tiles.
St. Charles: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Round Lake Beach: 22/100 · St. Charles: 30/100
St. Charles is 8 points higher.
Round Lake Beach: Air quality signal derived from the latest EPA AirNow combined AQI grid.
St. Charles: Air quality signal derived from the latest EPA AirNow combined AQI grid.