STATE RISK ROLL-UP

Iowa

Across 99 counties, FEMA rates 0 elevated or higher for overall natural-hazard risk. Here's what drives it — and where it concentrates.

How the counties rate

低い94

中程度5

やや高い0

高い0

Dominant hazards

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

干ばつ — 45 counties
強風 — 14 counties
冬の悪天候 — 9 counties
雹（ひょう） — 9 counties

Highest-risk counties

County	FEMA composite	Score
Polk County	比較的中程度	92
Johnson County	比較的中程度	87
Linn County	比較的中程度	87
Scott County	比較的中程度	85
Woodbury County	比較的中程度	83
Pottawattamie County	比較的低い	80

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