Natural Disaster Risk in Sully County
South Dakota
Risk Summary for Sully County
Sully County scores 3.9/10 (Low risk), below the U.S. average of 4.5. The leading hazard is Wildfire.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Below-average risk — standard coverage likely adequate
Natural disaster risk here is below the US average. Standard homeowners insurance will typically be sufficient, but it is still worth reviewing exclusions for floods and earthquakes.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Sully County, South Dakota
Sully County, in the United States in South Dakota, is characterized by its semi-arid continental climate — harsh winters, hot summers, and significant seasonal variation. The county faces severe blizzards and spring flooding, and its FEMA risk assessment establishes the hazard baseline shared by all the towns and cities it contains.
Sully County's overall natural disaster risk is rated 3.9/10 (Low) by FEMA's National Risk Index. The threat of wildfire dominates the local risk environment, with hot, dry summers and abundant fuel creating dangerous fire conditions each year. Secondary hazards include cold wave and winter.
Within South Dakota, Sully County's risk is, slightly below the 4.9/10 state average. Nationally, it ranks below the U.S. national average of 4.5/10. FEMA's analysis of Sully County identifies wildfire as the foremost hazard, followed by cold wave and winter. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
Despite its lower-than-average risk classification, Sully County is not immune to natural hazards. Basic preparedness — an emergency kit, awareness of seasonal risks, and property insurance that covers wildfire — remains prudent for all residents.
What this means for Sully County: Wildfire preparedness
- Prepare a go-bag and evacuation plan; wildfires can move faster than expected when winds pick up.
- Create defensible space by clearing flammable vegetation within 30–100 feet of structures.
- Use fire-resistant roofing and screen vents to block ember intrusion, the leading cause of home ignition.
Cities in Sully County
ZIP codes in Sully County
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. For informational purposes only.