Natural Disaster Risk in Keystone

Natural Hazard Profile: Keystone, South Dakota

Keystone is a small community of about 893 in Pennington County, in the Great Plains. The area experiences harsh winters, hot summers, and significant seasonal variation, with severe blizzards and spring flooding shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Keystone.

According to FEMA's National Risk Index, Keystone carries an overall risk score of 6.9/10, placing it in the high category. Fire risk is the leading concern in the area, where seasonal drought and combustible vegetation combine to create a high-risk wildfire environment. The area also faces notable exposure to hail and winter.

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

Keystone's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.