Moderate Risk South Dakota  ·  Wildfire / Flash Flooding

Pennington County SD

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

6/ 10
Threat Score
Population
113,775
Area
2777
sq miles
Primary Hazard
Wildfire / Flash Flooding
FEMA Disasters
26
federally declared

Pennington County and Rapid City in the Black Hills face wildfire risk from the dense ponderosa pine forests surrounding the city. The 1972 Rapid City flood killed 238 people in one of the deadliest flash floods in US history. The county hosts Mount Rushmore and the Sturgis Motorcycle Rally — events that bring massive temporary populations requiring robust emergency planning. Black Hills wildfires have threatened communities repeatedly.

// 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 Wildfire / Flash Flooding
Secondary Hazard Winter Storm
FEMA Flood Zone Zone X (Moderate Risk)
Federally Declared Disasters 26
Last Major Event Wildfire (August 2022)
Event Frequency Major event every 5–6 years

// Emergency Operations

Emergency Mgmt Phone (605) 394-2289
Emergency Shelters 10 designated facilities
Evacuation Routes I-90 East, I-90 West, US-16 South, US-385 North

// County Profile

County Pennington County SD
State South Dakota (SD)
Population 113,775
Area 2777 sq miles
FEMA Region Zone X (Moderate Risk)

// Major Cities

Box Elder SD Rapid City SD

// Cities in This County

// Other South Dakota Counties

// Nearby Infrastructure Risks

Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.

Ellsworth Air Force Base SD
Military Installation  ·  Box Elder, SD  ·  US Air Force  ·  25-mi risk zone
7/10 High

Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.