7
Very High
Flood Risk in Portland, OR
Risk Level: Very High — Score 7/10
FEMA: 7Historical: 10
Key Risk Factors
- FEMA rates Portland's county as Relatively High risk
- Estimated annual loss of $91M from this hazard type
- 45 events recorded in proximity in recent decades
- 15 events in the last 12 months indicate ongoing risk
- Occurs roughly 0.39 times per year on average
Peak season: March-September
Last significant event: Flood Forecast - Portland metro, United States (2025-12-09) — 21,800 people exposed
Highest Risk Cities for Floods
Portland is not in the top 10 for flood risk among tracked cities.
How Portland Compares
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Notable Flood Events Near Portland
Flood Forecast - Portland metro, United States
December 8, 2025 — WARNING
21,800 people exposed; $7,163M capital exposed
Flood - Portland, OR--WA Region, United States
June 14, 2022 — WARNING
Impact data not available
Flood - Portland, OR--WA Region, United States
June 12, 2022 — WARNING
Impact data not available
Flood - Portland, OR--WA Region, United States
June 13, 2022 — WARNING
Impact data not available
Flood - Portland, OR--WA Region, United States
June 10, 2022 — WARNING
Impact data not available
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 Risk in Portland
Score: 7/10
Wildfire Risk in Portland
Score: 3/10
Hurricane Risk in Portland
Score: 0/10
Tornado Risk in Portland
Score: 3/10
Winter Storm Risk in Portland
Score: 7/10
Landslide Risk in Portland
Score: 5/10
Extreme Heat Risk in Portland
Score: 7/10
Drought Risk in Portland
Score: 1/10
High Wind Risk in Portland
Score: 5/10
Tsunami Risk in Portland
Score: 0/10
Flood Risk in Seattle, WA
Score: 9/10
Flood Risk in Sacramento, CA
Score: 7/10
Flood Risk in Oakland, CA
Score: 9/10
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