DisasterAWARE
9
Extreme

flood Flood Risk in Los Angeles, CA

Risk Level: Extreme — Score 9/10

FEMA: 9Historical: 10

Live Flood alert status near Los Angeles

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Live flood activity around Los Angeles — refreshed throughout the day.

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Key Risk Factors

  • FEMA rates Los Angeles's county as Very High risk for this hazard
  • Estimated annual loss of $2,809M from this hazard type
  • Frequent historical activity recorded in proximity
  • High recent activity — multiple events in the last 12 months
  • Average annual frequency: 4.0 events per year

Peak season: March-September

Last significant event: Flood - Los Angeles, California, United States (2026-02-19) — 4,780,000 people exposed

Highest Risk Cities for Floods

1
New York, NY
FEMA: 9Historical: 10
2
Los Angeles, CA
FEMA: 9Historical: 10
3
Chicago, IL
FEMA: 9Historical: 10
4
Houston, TX
FEMA: 9Historical: 10
5
Phoenix, AZ
FEMA: 9Historical: 10
6
Philadelphia, PA
FEMA: 9Historical: 10
7
San Antonio, TX
FEMA: 9Historical: 10
8
San Diego, CA
FEMA: 9Historical: 10
9
Dallas, TX
FEMA: 9Historical: 10
10
San Jose, CA
FEMA: 9Historical: 10

How Los Angeles Compares

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Notable Flood Events Near Los Angeles

DisasterAWARE's historical archive records 5 notable flood events near Los Angeles, ranked below by impact. The most impactful: Flood - Los Angeles County _ nearby coastal/mountain areas, United States (November 2025) — 9,340,000 people exposed; $2,848,317M capital exposed.

Flood - Los Angeles County _ nearby coastal/mountain areas, United States

November 20, 2025 — WATCH

9,340,000 people exposed; $2,848,317M capital exposed

Flood - Los Angeles, United States

November 20, 2025 — ADVISORY

6,160,000 people exposed; $1,923,805M capital exposed

Flood - Los Angeles--Long Beach--Anaheim, CA Region, United States

March 29, 2024 — WARNING

5,250,000 people exposed; $1,650,832M capital exposed

Flood - Los Angeles, California, United States

February 18, 2026 — ADVISORY

4,780,000 people exposed; $1,502,787M capital exposed

Flood - Los Angeles--Long Beach--Anaheim, CA Region, United States

February 5, 2024 — WARNING

3,210,000 people exposed; $1,028,003M capital exposed

Flood Preparedness Tips

  • 1.Know if your property is in a flood zone — check FEMA maps
  • 2.Consider flood insurance even if not in a high-risk zone
  • 3.Never drive through flooded roadways — Turn Around, Don’t Drown
  • 4.Move valuables and important documents to upper floors
  • 5.Install sump pumps and check valves in plumbing

Related Pages

earthquake
Earthquake Risk in Los Angeles
Score: 9/10
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Wildfire Risk in Los Angeles
Score: 9/10
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Hurricane Risk in Los Angeles
Score: 0/10
tornado
Tornado Risk in Los Angeles
Score: 7/10
winter-storm
Winter Storm Risk in Los Angeles
Score: 5/10
landslide
Landslide Risk in Los Angeles
Score: 7/10
extreme-heat
Extreme Heat Risk in Los Angeles
Score: 7/10
drought
Drought Risk in Los Angeles
Score: 3/10
high-wind
High Wind Risk in Los Angeles
Score: 5/10
tsunami
Tsunami Risk in Los Angeles
Score: 3/10
flood
Flood Risk in Long Beach, CA
Score: 9/10
flood
Flood Risk in San Diego, CA
Score: 9/10
flood
Flood Risk in Fresno, CA
Score: 7/10

How this data is built

Los Angeles, CA flood risk combines Historical Event Intelligence with authoritative hazard modeling from the Geospatial Intelligence Layers catalog. Live flood monitoring is available through the Event Intelligence API and the DisasterAWARE Platform.

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