Sylvan, WI natural hazards
Most of the natural-hazard damage FEMA expects in Sylvan comes from inland flooding, and overall the risk is high for a U.S. community. 5 federal disasters brought FEMA money into town.
FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarationsHow exposed is Sylvan?
FEMA expects yearly storm and flood damage to homes and buildings in Sylvan to be higher than in 74% of U.S. communities, mostly from inland flooding.
What Sylvan faces
Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.
Inland flooding
Cold waves
Tornadoes
Hail
Lower here
Not a risk here
Does Sylvan flood?
FEMA's records show no paid flood insurance claims in Sylvan.
are insured
are insured
5 federal disasters brought FEMA money here
Disasters the President declared that paid out in Sylvan itself: aid to households, or repair grants to the Town of Sylvan.
Severe Storms, Tornadoes, Straight-Line Winds, Flooding, and Landslides
Severe Storms, Flooding, and Mudslides
Severe Storms, Tornadoes, and Flooding
Severe Storms and Flooding
Severe Storms, Tornadoes, and Flooding
Sylvan and the towns around it
How to read this page
Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.