Moderate Risk Delaware  ·  Hurricane / Coastal Flooding

Sussex County DE

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

6/ 10
Threat Score
Population
237
Area
938
sq miles
Primary Hazard
Hurricane / Coastal Flooding
FEMA Disasters
7
federally declared

Sussex County in southern Delaware along Delaware Bay and the Atlantic Ocean faces direct hurricane and nor'easter exposure. Rehoboth Beach and other Delaware beach communities draw massive summer tourism creating seasonal population surge emergency planning requirements. The county has the highest rate of coastal flooding risk in Delaware. Sandy in 2012 caused major damage across the county. The Nanticoke River creates inland flooding risk.

// 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 Hurricane / Coastal Flooding
Secondary Hazard Nor'easter
FEMA Flood Zone High
Federally Declared Disasters 7
Last Major Event Ida 2021
Event Frequency Annual

// Emergency Operations

Emergency Mgmt Phone (302) 855-7801
Emergency Shelters 8 designated facilities
Evacuation Routes DE-1 US-13 DE-26 DE-54

// County Profile

County Sussex County DE
State Delaware (DE)
Population 237
Area 938 sq miles
FEMA Region High

// Major Cities

Laurel DE Bridgeville DE Millsboro DE Rehoboth Beach DE Georgetown DE Lewes DE Seaford DE Milford DE

// Cities in This County

// Other Delaware Counties