Dempster, SD (ZIP 57234) has experienced 88 recorded natural disaster events based on federal and state agency records. These include 48 hailstorms, 16 severe wind events, and 9 floods. Total documented property damage amounts to $1.4M. These events have resulted in 4 recorded deaths and 18 injuries.
The dominant hazard type for Dempster is hailstorms, with 48 recorded events making up 55% of the area's disaster history. The most recent recorded hailstorm occurred on Jun 28, 2025.
There have been 16 recorded severe wind events in this area, representing 18% of all disaster events. Wind-related events have caused a combined $215K in documented property damage. 1 fatality has been attributed to severe wind events in this area. The most recent recorded severe wind event occurred on Aug 16, 2025.
Dempster has experienced 9 floods on record. Of these, 5 (56%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for flood-related events here is 5/5 (extreme). Flood-related events have caused a combined $980.5K in documented property damage. The most recent recorded flood occurred on Jun 28, 2025.
Dempster has experienced 9 tornadoes on record. Tornado-related events have caused a combined $180K in documented property damage. The most recent recorded tornado occurred on May 30, 2022.
Dempster has experienced 6 blizzards on record. Of these, 2 (33%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for winter storm events here is 4/5 (severe). Winter storm events have caused a combined $36K in documented property damage. 3 fatalities have been attributed to blizzards in this area. The most recent recorded blizzard occurred on Mar 12, 2023.
The most significant disaster event on record for Dempster was Flood on Apr 1, 2011, which caused $500K in property damage. Another major event was 90 mph Thunderstorm Wind (Jun 21, 2013), causing $215K in damages.
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Based on federal and state records, ZIP code 57234 has experienced 88 natural disaster events. The hazard types affecting this area include hailstorms (48 events), severe wind events (16 events), floods (9 events), tornadoes (9 events), and blizzards (6 events). The primary hazard is hailstorms, which account for 55% of all recorded events.
Hailstorms are the most frequently recorded hazard in Dempster, SD, with 48 events documented.
Yes, Dempster (ZIP 57234) has 9 recorded flood events. These floods have caused $980.5K in total property damage. The most recent flood on record occurred on Jun 28, 2025.
Dempster has 9 recorded tornado events in the historical record. The strongest tornado recorded reached severity level 3/5 on the normalized scale. Total property damage from tornadoes in this area is $180K. The most recent tornado was recorded on May 30, 2022.
The most damaging natural disaster on record for ZIP code 57234 was Flood, which occurred on Apr 1, 2011. This event caused $500K in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $1.4M in property damage in the Dempster, SD area (ZIP 57234). This figure is based on historical records from FEMA, NOAA Storm Events Database, and USGS, and covers events from the 1950s through the present. Actual damages may be higher, as not all events have complete damage assessments.
Data sourced from FEMA (disaster declarations, NFIP flood claims), NOAA Storm Events Database, USGS Earthquake Hazards Program, and NIFC wildfire records. Historical coverage varies by source, with most records beginning in the 1950s–1970s. Full methodology →