STATE RISK ROLL-UP

Illinois

Across 102 counties, FEMA rates 6 elevated or higher for overall natural-hazard risk. Here's what drives it — and where it concentrates.

How the counties rate

低い82

中程度14

やや高い5

高い1

Dominant hazards

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

強風 — 33 counties
冬の悪天候 — 15 counties
竜巻 — 14 counties
落雷 — 12 counties

Highest-risk counties

County	FEMA composite	Score
Cook County	非常に高い	100
DuPage County	比較的高い	98
Will County	比較的高い	97
Lake County	比較的高い	96
Kane County	比較的高い	95
St. Clair County	比較的高い	95

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