9
Extreme
Flood Risk in Chicago, IL
Risk Level: Extreme — Score 9/10
FEMA: 9Historical: 10
Key Risk Factors
- FEMA rates Chicago's county as Very High risk for this hazard
- Estimated annual loss of $1,097M from this hazard type
- 352 significant events recorded in proximity since 1950
- 54 events in the last 12 months indicate ongoing risk
- Average annual frequency: 5.9 events per year
Peak season: March-September
Last significant event: Flood - Chicago, IL--IN Region, United States (2025-07-09) — 573,000 people exposed
Highest Risk Cities for Floods
3
Chicago, IL
FEMA: 9Historical: 10
How Chicago Compares
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Notable Flood Events Near Chicago
Flood - Chicago, IL--IN Region, United States
July 8, 2025 — WARNING
573,000 people exposed; $133,535M capital exposed
Flood - Chicago, IL--IN Region, United States
July 1, 2023 — WARNING
Impact data not available
Flood - Chicago, IL--IN Region, United States
February 24, 2020 — WARNING
Impact data not available
Flood - Chicago, IL--IN Region, United States
September 10, 2022 — WARNING
Impact data not available
Flood - Chicago, IL--IN Region, United States
July 1, 2023 — WARNING
Impact data not available
Flood Preparedness Tips
- 1.Know if your property is in a flood zone — check FEMA maps
- 2.Consider flood insurance even if not in a high-risk zone
- 3.Never drive through flooded roadways — Turn Around, Don’t Drown
- 4.Move valuables and important documents to upper floors
- 5.Install sump pumps and check valves in plumbing
Related Pages
Earthquake Risk in Chicago
Score: 7/10
Wildfire Risk in Chicago
Score: 1/10
Hurricane Risk in Chicago
Score: 1/10
Tornado Risk in Chicago
Score: 9/10
Winter Storm Risk in Chicago
Score: 9/10
Landslide Risk in Chicago
Score: 1/10
Extreme Heat Risk in Chicago
Score: 9/10
Drought Risk in Chicago
Score: 1/10
High Wind Risk in Chicago
Score: 9/10
Tsunami Risk in Chicago
Score: 0/10
Flood Risk in Milwaukee, WI
Score: 7/10
Flood Risk in Indianapolis, IN
Score: 7/10
Flood Risk in Louisville, KY
Score: 7/10
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