Cook County and Chicago face moderate but real disaster risk from tornadoes, severe thunderstorms, and Lake Michigan flooding. A June 2021 tornado caused damage across suburban Cook County. Lake Michigan storm surge can flood lakefront neighborhoods and the Chicago River system creates flooding risk across the urban core. The county also sits near the New Madrid Seismic Zone's northern influence zone.
// Preparedness Recommendations
- Identify an interior room or storm shelter.
- Monitor NOAA weather alerts continuously.
- Keep emergency kit accessible at all times.
- Prepare for sudden power outages.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
* We may earn a commission from qualifying purchases.
// Risk Intelligence
| Threat Score | 6 / 10 Moderate Risk |
| Primary Hazard | Tornado / Severe Storm |
| Secondary Hazard | Flash Flooding |
| FEMA Flood Zone | Zone X (Moderate Risk) |
| Federally Declared Disasters | 36 |
| Last Major Event | Tornado (June 2021) |
| Event Frequency | Major event every 5–7 years |
// Emergency Operations
| Emergency Mgmt Phone | (312) 603-8965 |
| Emergency Shelters | 88 designated facilities |
| Evacuation Routes | I-90 West, I-94 North, I-290 West, I-55 South |
// County Profile
| County | Cook County IL |
| State | Illinois (IL) |
| Population | 5,275,541 |
| Area | 946 sq miles |
| FEMA Region | Zone X (Moderate Risk) |
// Major Cities
// Cities in This County
// Other Illinois Counties
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.