STATE RISK ROLL-UP

Wisconsin

Across 72 counties, FEMA rates 1 elevated or higher for overall natural-hazard risk. Here's what drives it — and where it concentrates.

How the counties rate

Bajo62

Moderado9

Elevado1

Alto0

Dominant hazards

The hazards most often rated elevated or higher across Wisconsin's counties:

Rayo — 10 counties
Vientos fuertes — 10 counties
Granizo — 8 counties
Tornado — 8 counties

Highest-risk counties

County	FEMA composite	Score
Milwaukee County	Relativamente alto	98
Dane County	Relativamente moderado	94
Brown County	Relativamente moderado	90
Waukesha County	Relativamente moderado	89
Marathon County	Relativamente moderado	87
Winnebago County	Relativamente moderado	87

State figures are a roll-up of FEMA National Risk Index county data (counts and rankings), not an official FEMA state rating. Risk is an estimate from a public model, not a guarantee — verify your specific insurance needs with a licensed professional. See the methodology.

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FEMA National Risk Index · as of 2026-07-10