Johnson County home to Iowa City and the University of Iowa faces moderate tornado risk and serious Iowa River flooding. The 2008 Iowa River flooding caused catastrophic damage to Iowa City including the University of Iowa campus resulting in over $700 million in losses. The University of Iowa with 33000 students and UI Hospitals and Clinics — one of the nation's top academic medical centers — create critical institutional emergency planning requirements.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// 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
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// Risk Intelligence
| Threat Score | 5 / 10 Moderate Risk |
| Primary Hazard | Tornado / Flash Flooding |
| Secondary Hazard | Iowa River Flooding |
| FEMA Flood Zone | Moderate |
| Federally Declared Disasters | 6 |
| Last Major Event | 2008 Flooding |
| Event Frequency | Annual |
// Emergency Operations
| Emergency Mgmt Phone | (319) 356-6000 |
| Emergency Shelters | 8 designated facilities |
| Evacuation Routes | I-380 US-6 IA-1 IA-22 |
// County Profile
| County | Johnson County IA |
| State | Iowa (IA) |
| Population | 153 |
| Area | 616 sq miles |
| FEMA Region | Moderate |
// Major Cities
// Cities in This County
// Other Iowa 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.