Moderate Risk Texas  ·  Flash Flooding / Tornado

Comal County TX

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

6/ 10
Threat Score
Population
162
Area
574
sq miles
Primary Hazard
Flash Flooding / Tornado
FEMA Disasters
7
federally declared

Comal County in the Texas Hill Country between San Antonio and Austin has been one of the fastest growing counties in the United States. The Guadalupe River and Blanco River create extreme flash flooding risk — the May 2015 Wimberley floods killed multiple people when cabins were swept away in catastrophic overnight flooding. New Braunfels has tripled in size in two decades. The canyon terrain creates flash flood corridors that can fill with devastating speed.

// 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 Flash Flooding / Tornado
Secondary Hazard Wildfire
FEMA Flood Zone High
Federally Declared Disasters 7
Last Major Event 2015 Wimberley Flooding
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (830) 620-3400
Emergency Shelters 6 designated facilities
Evacuation Routes I-35 TX-46 TX-306 TX-3009

// County Profile

County Comal County TX
State Texas (TX)
Population 162
Area 574 sq miles
FEMA Region High

// Major Cities

New Braunfels TX

// Cities in This County

// Other Texas Counties