Natural Disaster Risk in Gregory County
South Dakota
Risk Summary for Gregory County
Gregory County scores 4.7/10 (Moderate risk), near the U.S. average of 4.5. The leading hazard is Cold Wave.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Average risk — standard coverage usually sufficient
This area carries average natural disaster risk. A standard homeowners or renters policy should cover common events, but review the exclusions for floods and earthquakes, which are almost never included by default.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Gregory County, South Dakota
Gregory 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.
According to FEMA's National Risk Index, Gregory County carries an overall risk score of 4.7/10, placing it in the moderate category. Arctic air outbreaks are the leading natural hazard, with temperature plunges to dangerous lows capable of causing hypothermia and widespread infrastructure failures. The area also faces notable exposure to wildfire and winter.
Within South Dakota, Gregory County's risk is, near the 4.9/10 state average. Nationally, it ranks near the U.S. national average of 4.5/10. FEMA's analysis of Gregory County identifies cold wave as the foremost hazard, followed by wildfire and winter. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
With a moderate risk rating, Gregory County residents are well-served by maintaining standard preparedness practices — an emergency supply kit, awareness of local hazard seasonality, and insurance that covers the top local risks. Periodic review of coverage for cold wave is recommended.
What this means for Gregory County: Cold Wave preparedness
- Dress in layers and limit exposure during extreme cold to prevent frostbite and hypothermia.
- Protect pipes, pets, and plants, and ensure heating systems are serviced before winter.
- Keep emergency heat and supplies ready in case of cold-related power outages.
Cities in Gregory County
ZIP codes in Gregory County
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. For informational purposes only.