Moderate Risk Texas  ·  Tornado / Flash Flooding

Ellis County TX

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

6/ 10
Threat Score
Population
197
Area
939
sq miles
Primary Hazard
Tornado / Flash Flooding
FEMA Disasters
6
federally declared

Ellis County south of Dallas along the Trinity River is one of the fastest growing counties in Texas. The Trinity River and its tributaries create flooding risk. The county faces moderate tornado risk and has experienced tornado events. Waxahachie the county seat hosts the former Superconducting Super Collider site — a massive abandoned federal science project. The county is part of the Dallas southern suburban expansion corridor.

// 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 / Flash Flooding
Secondary Hazard Severe Storm
FEMA Flood Zone Moderate
Federally Declared Disasters 6
Last Major Event 2019 Tornado
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (972) 825-5000
Emergency Shelters 8 designated facilities
Evacuation Routes I-35E US-287 TX-34 TX-77

// County Profile

County Ellis County TX
State Texas (TX)
Population 197
Area 939 sq miles
FEMA Region Moderate

// Other Texas Counties