Natural Disaster Risk in Corson County

Natural Hazard Profile: Corson County, South Dakota

Corson County is located in the United States in South Dakota, home to roughly 3,902 residents. The county experiences harsh winters, hot summers, and significant seasonal variation, with severe blizzards and spring flooding shaping the natural hazards faced by its communities. FEMA assesses risk at this county level, providing the baseline for every city and ZIP code within its boundaries.

According to FEMA's National Risk Index, Corson County carries an overall risk score of 4.8/10, placing it in the moderate category. Extreme cold snaps top the local risk profile, with Arctic front passages causing rapid and severe temperature drops that challenge both infrastructure and outdoor safety. The area also faces notable exposure to wildfire and winter.

Corson County's risk score, near the 4.9/10 state average and near the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Corson County, the highest-scoring are cold wave, wildfire, and winter. These scores reflect county-level data and represent the baseline risk that all communities in the county share.

Corson County's moderate risk profile means that while catastrophic events are less frequent, they do occur. Standard homeowners insurance typically covers many common hazards here, but confirming that cold wave exposure is adequately protected is a worthwhile step for property owners.