City vs city

Dardenne Prairie vs O'Fallon, MO

Dardenne Prairie and O'Fallon 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.

Dardenne Prairie

46/100

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O'Fallon

46/100

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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

Dardenne Prairie: 46/100 · O'Fallon: 46/100

No gap.

Flood

Dardenne Prairie: 44/100 · O'Fallon: 44/100

No gap.

Dardenne Prairie: FEMA NFHL flood zones: 6 features intersect this tile.

O'Fallon: FEMA NFHL flood zones: 6 features intersect this tile.

Wind

Dardenne Prairie: 16/100 · O'Fallon: 16/100

No gap.

Dardenne Prairie: Wind exposure derived from ingested design wind / climatology tiles.

O'Fallon: Wind exposure derived from ingested design wind / climatology tiles.

Lightning

Dardenne Prairie: 46/100 · O'Fallon: 46/100

No gap.

Dardenne Prairie: Lightning exposure derived from ingested climatology tiles.

O'Fallon: Lightning exposure derived from ingested climatology tiles.

Tornado

Dardenne Prairie: 50/100 · O'Fallon: 50/100

No gap.

Dardenne Prairie: Tornado risk derived from NOAA SPC historical reports.

O'Fallon: Tornado risk derived from NOAA SPC historical reports.

Hail

Dardenne Prairie: 100/100 · O'Fallon: 100/100

No gap.

Dardenne Prairie: Hail risk derived from NOAA SPC historical reports.

O'Fallon: Hail risk derived from NOAA SPC historical reports.

Storm surge

Dardenne Prairie: Unavailable · O'Fallon: Unavailable

A score difference cannot be calculated without both sources.

Dardenne Prairie: Storm surge model is not available for this location yet.

O'Fallon: Storm surge model is not available for this location yet.

Wildfire

Dardenne Prairie: 41/100 · O'Fallon: 41/100

No gap.

Dardenne Prairie: Wildfire exposure derived from ingested fire potential tiles.

O'Fallon: Wildfire exposure derived from ingested fire potential tiles.

Current air quality

Dardenne Prairie: 28/100 · O'Fallon: 28/100

No gap.

Dardenne Prairie: Air quality signal derived from the latest EPA AirNow combined AQI grid.

O'Fallon: Air quality signal derived from the latest EPA AirNow combined AQI grid.