How many counties in Iowa are at high risk?

Iowa has 99 counties. The overall state risk rating is "Very High" with a score of 39.7.

What is the wildfire risk in Iowa?

Iowa's statewide wildfire risk is rated "Very High" with a score of 35.2.

Which county in Iowa has the highest risk?

Polk County has the highest overall risk score at 0.0.

Natural Hazard Risk in Iowa

99 counties — Overall risk: Very High

📊

Counties

👥

Population

3,189,039

⚠️

Overall Risk

39.7

Very High

🔥

Wildfire Risk

35.2

Very High

Hazard Risk Overview

☀️

Drought

86.7

Very High

🧊

Hail

74.2

Very High

🌪️

Tornado

61.5

Very High

💨

Strong Wind

57.4

Very High

⛰️

Landslide

54.5

Very High

⛄

Winter Weather

51.3

Very High

🥶

Cold Wave

50.7

Very High

❄️

Ice Storm

43.4

Very High

🌡️

Heat Wave

41.8

Very High

🌊

Riverine Flooding

38.1

Very High

Highest Risk Counties in Iowa

Polk

Score: 92.0

Relatively Moderate 2

Johnson

Score: 87.4

Relatively Moderate 3

Linn

Score: 86.7

Relatively Moderate 4

Scott

Score: 84.9

Relatively Moderate 5

Woodbury

Score: 83.3

Relatively Moderate 6

Pottawattamie

Score: 80.4

Relatively Low

All 99 Counties in Iowa

County	Risk Score	Rating	Top Hazard
Polk	92.0
Johnson	87.4
Linn	86.7
Scott	84.9
Woodbury	83.3
Pottawattamie	80.4
Black Hawk	76.6
Cerro Gordo	69.6
Story	68.8
Wapello	65.3
Clinton	64.8
Dubuque	63.6
Lee	62.9
Marshall	62.5
Crawford	60.8
Dallas	60.6
Cass	60.1
Webster	60.0
Hardin	58.4
Muscatine	57.8
Carroll	57.6
Des Moines	55.8
Sioux	52.4
Fayette	50.9
Davis	50.3
Delaware	49.7
Adair	49.5
Union	49.5
Plymouth	49.2
Floyd	47.7
Tama	45.3
Calhoun	44.6
Washington	44.2
Jasper	43.7
Hamilton	42.9
Emmet	42.7
Clayton	42.2
Wright	41.5
Appanoose	41.2
Page	40.2
Buena Vista	39.3
Audubon	38.6
Taylor	38.5
Allamakee	38.2
Mitchell	37.7
Clay	36.4
Dickinson	36.3
Winneshiek	36.2
Jackson	36.1
Warren	36.1
Madison	35.5
Marion	34.4
Cherokee	34.1
Montgomery	33.7
Van Buren	33.6
Pocahontas	33.0
Jones	32.7
Kossuth	32.3
Greene	31.8
Chickasaw	31.7
Harrison	31.3
Poweshiek	31.3
Henry	30.9
Winnebago	30.7
Lucas	29.7
Mahaska	29.7
Benton	28.8
Hancock	28.8
Boone	28.4
Iowa	28.2
Sac	27.3
Butler	27.1
Jefferson	27.1
Guthrie	26.5
Monona	25.1
Bremer	24.6
Humboldt	24.1
Buchanan	24.0
Decatur	23.6
Shelby	22.8
Wayne	22.0
Franklin	21.9
Keokuk	21.9
Cedar	21.5
Adams	20.4
Lyon	19.2
Mills	18.5
Clarke	18.4
Ida	18.4
Louisa	17.5
O'Brien	16.4
Howard	15.6
Palo Alto	15.5
Fremont	15.0
Osceola	14.9
Ringgold	14.2
Grundy	13.1
Monroe	10.3
Worth	9.9

Natural Hazard Risk in Iowa

Hazard Risk Overview

Highest Risk Counties in Iowa

All 99 Counties in Iowa

FAQ