ZIP code 21704, covering Zcta 21704, MD, has 73 natural disaster events in the historical record. These include 30 hailstorms, 12 tornadoes, and 11 floods. Total documented property damage amounts to $62.4M. These events have resulted in 4 recorded deaths and 6 injuries.
With 30 recorded incidents (41% of all events), hailstorms are the leading natural hazard for this ZIP code. The most recent recorded hailstorm occurred on Aug 29, 2024.
There have been 12 recorded tornadoes in this area, representing 16% of all disaster events. Tornado-related events have caused a combined $1.7M in documented property damage. The most recent recorded tornado occurred on Feb 7, 2020.
There have been 11 recorded floods in this area, representing 15% of all disaster events. Of these, 7 (64%) 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 $60M in documented property damage. The most recent recorded flood occurred on May 17, 2018.
Zcta 21704 has experienced 7 blizzards on record. Of these, 3 (43%) 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 5/5 (extreme). Winter storm events have caused a combined $290K in documented property damage. 1 fatality has been attributed to blizzards in this area. The most recent recorded blizzard occurred on Mar 16, 2007.
Zcta 21704 has experienced 6 severe wind events on record. Wind-related events have caused a combined $350K in documented property damage. The most recent recorded severe wind event occurred on Feb 16, 2025.
Zcta 21704 has experienced 4 extreme heat events on record. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for heat-related events here is 5/5 (extreme). 2 fatalities have been attributed to extreme heat events in this area. The most recent recorded extreme heat event occurred on Jul 21, 2019.
The most significant disaster event on record for Zcta 21704 was Flash Flood on May 15, 2018, which caused $43.2M in property damage. Another major event was Flood (Jan 19, 1996), causing $15M in damages. Flash Flood on May 15, 2018 also caused significant damage ($1M).
Explore disaster history for adjacent areas
Based on federal and state records, ZIP code 21704 has experienced 73 natural disaster events. The hazard types affecting this area include hailstorms (30 events), tornadoes (12 events), floods (11 events), blizzards (7 events), severe wind events (6 events), extreme heat events (4 events), extreme cold events (2 events), and earthquake (1 event). The primary hazard is hailstorms, which account for 41% of all recorded events.
Hailstorms are the most frequently recorded hazard in Zcta 21704, MD, with 30 events documented.
Yes, Zcta 21704 (ZIP 21704) has 11 recorded flood events. These floods have caused $60M in total property damage. The most recent flood on record occurred on May 17, 2018.
Zcta 21704 has 12 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 $1.7M. The most recent tornado was recorded on Feb 7, 2020.
The most damaging natural disaster on record for ZIP code 21704 was Flash Flood, which occurred on May 15, 2018. This event caused $43.2M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $62.4M in property damage in the Zcta 21704, MD area (ZIP 21704). 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 →