ZIP code 91784, covering Upland, CA, has 143 natural disaster events in the historical record. These include 77 earthquakes, 61 wildfires, and 4 floods. Total documented property damage amounts to $97.1M. Across all recorded events, 3 deaths have been attributed to natural disasters in this area.
The dominant hazard type for Upland is earthquakes, with 77 recorded events making up 54% of the area's disaster history. One event reached severity level 4 or 5 on the normalized scale. The highest recorded severity for seismic events here is 4/5 (severe). The most recent recorded earthquake occurred on Sep 7, 2025.
Wildfires account for 43% of the disaster record here, with 61 events documented. Of these, 2 (3%) were rated at severity level 4 or 5 — the most intense on the normalized scale. The highest recorded severity for wildfire-related events here is 4/5 (severe). The most recent recorded wildfire occurred on Jan 2, 2019.
Upland has experienced 4 floods on record. Of these, 3 (75%) 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 $97M in documented property damage. 3 fatalities have been attributed to floods in this area. The most recent recorded flood occurred on Nov 8, 2022.
Upland has experienced 1 tornado on record. Tornado-related events have caused a combined $25K in documented property damage. The most recent recorded tornado occurred on Nov 25, 1965.
The most significant disaster event on record for Upland was Flood on Dec 19, 2010, which caused $97M in property damage.
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Based on federal and state records, ZIP code 91784 has experienced 143 natural disaster events. The hazard types affecting this area include earthquakes (77 events), wildfires (61 events), floods (4 events), and tornado (1 event). The primary hazard is earthquakes, which account for 54% of all recorded events.
Earthquakes are the most frequently recorded hazard in Upland, CA, with 77 events documented.
Yes, Upland (ZIP 91784) has 4 recorded flood events. These floods have caused $97M in total property damage. The most recent flood on record occurred on Nov 8, 2022.
Upland has 1 recorded tornado event in the historical record. Total property damage from tornadoes in this area is $25K. The most recent tornado was recorded on Nov 25, 1965.
The most damaging natural disaster on record for ZIP code 91784 was Flood, which occurred on Dec 19, 2010. This event caused $97M in documented property damage. It was rated at severity level 5/5.
Natural disasters have caused a documented total of $97.1M in property damage in the Upland, CA area (ZIP 91784). 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 →