Woodbury County anchored by Sioux City on the Missouri River at the Iowa-Nebraska-South Dakota tri-state border faces serious tornado and Missouri River flooding risk. The 2019 historic Missouri River flooding caused extensive damage across the county. The county faces extreme blizzard risk from Great Plains winter storms. Sioux City serves as a regional hub for the tri-state area emergency coordination and hosts major food processing industries.
// 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 | 6 / 10 Moderate Risk |
| Primary Hazard | Tornado / Missouri River Flooding |
| Secondary Hazard | Blizzard |
| FEMA Flood Zone | High |
| Federally Declared Disasters | 8 |
| Last Major Event | 2019 Missouri River Flooding |
| Event Frequency | Annual |
// Emergency Operations
| Emergency Mgmt Phone | (712) 279-6207 |
| Emergency Shelters | 6 designated facilities |
| Evacuation Routes | I-29 US-20 IA-140 IA-175 |
// County Profile
| County | Woodbury County IA |
| State | Iowa (IA) |
| Population | 103 |
| Area | 873 sq miles |
| FEMA Region | High |
// Major Cities
// Cities in This County
// Other Iowa Counties
Linn County IA
Tornado / Derecho
7/10
High
Davis County IA
Tornado / Flash Flooding
6/10
Moderate
Madison County IA
Tornado / Flash Flooding
6/10
Moderate
Wright County IA
Tornado / Flash Flooding
6/10
Moderate
Appanoose County IA
Tornado / Flash Flooding
6/10
Moderate
Grundy County IA
Tornado / Flash Flooding
6/10
Moderate