FloodZoneMap.org

Iowa Flood Zones

Check a Iowa Address

Enter any Iowa address to see its FEMA flood zone designation

Flood Risk in Iowa

Iowa has areas at risk of flooding from various sources including rivers, coastal storms, and heavy rainfall. FEMA has mapped flood zones across the state to identify areas at risk.

Understanding Iowa Flood Zones

FEMA designates flood zones across Iowa using the following classifications:

AE High Risk — 1% annual chance of flooding (100-year floodplain). Insurance required for federal mortgages.

VE Very High Risk — Coastal flooding with wave action. Strictest building codes.

X (Shaded) Moderate Risk — 500-year floodplain. Insurance recommended.

X Low Risk — Outside major floodplains. Insurance optional but advisable — 20%+ of NFIP claims come from low-risk zones.

View all flood zone types →

Flood Insurance in Iowa

Properties in Iowa FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance through the National Flood Insurance Program (NFIP).

Even outside high-risk zones, flood insurance is recommended. NFIP claims data shows that over 20% of claims nationwide come from low and moderate-risk areas. Iowa residents can purchase flood insurance through the NFIP or private insurers.

Visit FloodSmart.gov to find an agent and get a quote.

Iowa Counties

Select a county to view local flood zone data and disaster history:

Iowa Cities

Select a city to check flood zone information:

Adel

Pop. 6,153

Algona

Pop. 5,487

Altoona

Pop. 19,565

Ames

Pop. 66,427

Anamosa

Pop. 5,450

Ankeny

Pop. 67,887

Asbury

Pop. 5,943

Atlantic

Pop. 6,792

Bettendorf

Pop. 39,102

Bondurant

Pop. 7,365

Boone

Pop. 12,460

Burlington

Pop. 23,982

Carroll

Pop. 10,321

Cedar Falls

Pop. 40,713

Cedar Rapids

Pop. 137,710

Centerville

Pop. 5,412

Charles City

Pop. 7,396

Cherokee

Pop. 5,199

Clarinda

Pop. 5,369

Clear Lake

Pop. 7,687

Clinton

Pop. 24,469

Clive

Pop. 18,601

Coralville

Pop. 22,318

Council Bluffs

Pop. 62,799

Creston

Pop. 7,536

Davenport

Pop. 101,724

DeWitt

Pop. 5,514

Decorah

Pop. 7,587

Denison

Pop. 8,373

Des Moines

Pop. 214,133

Dubuque

Pop. 59,667

Eldridge

Pop. 6,726

Estherville

Pop. 5,904

Fairfield

Pop. 9,416

Fort Dodge

Pop. 24,871

Fort Madison

Pop. 10,270

Glenwood

Pop. 5,073

Grimes

Pop. 15,392

Grinnell

Pop. 9,564

Hiawatha

Pop. 7,183

Independence

Pop. 6,064

Indianola

Pop. 15,833

Iowa City

Pop. 74,828

Iowa Falls

Pop. 5,106

Johnston

Pop. 24,064

Keokuk

Pop. 9,900

Knoxville

Pop. 7,595

Le Mars

Pop. 10,571

Manchester

Pop. 5,065

Maquoketa

Pop. 6,128

Marion

Pop. 41,535

Marshalltown

Pop. 27,591

Mason City

Pop. 27,338

Mount Pleasant

Pop. 9,274

Muscatine

Pop. 23,797

Nevada

Pop. 6,925

Newton

Pop. 15,760

North Liberty

Pop. 20,479

Norwalk

Pop. 12,799

Oelwein

Pop. 5,920

Orange City

Pop. 6,267

Osceola

Pop. 5,415

Oskaloosa

Pop. 11,558

Ottumwa

Pop. 25,529

Pella

Pop. 10,464

Perry

Pop. 7,836

Pleasant Hill

Pop. 10,147

Polk City

Pop. 5,543

Red Oak

Pop. 5,596

Sergeant Bluff

Pop. 5,015

Sheldon

Pop. 5,512

Sioux Center

Pop. 8,229

Sioux City

Pop. 85,797

Spencer

Pop. 11,325

Spirit Lake

Pop. 5,439

Storm Lake

Pop. 11,269

Urbandale

Pop. 45,580

Washington

Pop. 7,352

Waterloo

Pop. 67,314

Waukee

Pop. 23,940

Waverly

Pop. 10,394

Webster City

Pop. 7,825

West Des Moines

Pop. 68,723

Windsor Heights

Pop. 5,252

Winterset

Pop. 5,353