Moderate Risk Iowa  ·  Tornado / Missouri River Flooding

Sioux County IA

EMERGENCY PREPAREDNESS & DISASTER RISK PROFILE  ·  LAST UPDATED: Mar 2026

6/ 10
Threat Score
Population
34
Area
769
sq miles
Primary Hazard
Tornado / Missouri River Flooding
FEMA Disasters
7
federally declared

Sioux County IA in Iowa faces tornado / missouri river flooding risk across its 769 square mile area. Orange City serves this northwest Iowa county known for its Dutch heritage. Sioux serves as the county seat and regional emergency coordination hub.

// 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.

// Risk Intelligence

Threat Score 6 / 10    Moderate Risk
Primary Hazard Tornado / Missouri River Flooding
Secondary Hazard Blizzard
FEMA Flood Zone Moderate
Federally Declared Disasters 7
Last Major Event 2019 Tornado
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (712) 737-2284
Emergency Shelters 3 designated facilities
Evacuation Routes State and US highways

// County Profile

County Sioux County IA
State Iowa (IA)
Population 34
Area 769 sq miles
FEMA Region Moderate

// Other Iowa Counties