Natural hazards · Ankeny

Ankeny, IA natural hazards

Most of the natural-hazard damage FEMA expects in Ankeny comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 21 claims here since 1993. 8 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations
Expected damage

How exposed is Ankeny?

32
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Ankeny to be higher than in 32% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding44%Tornadoes23%Strong wind9%Heat waves8%Cold waves7%Hail6%Everything else3%
By hazard

What Ankeny faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

44% of expected damage
Below average · higher than 43% of U.S. places
Recorded about 5 times a year in the area

Tornadoes

23% of expected damage
Well above average · higher than 90% of U.S. places

Strong wind

9% of expected damage
Well above average · higher than 95% of U.S. places
Recorded about 6 times a year in the area

Heat waves

8% of expected damage
Well above average · higher than 87% of U.S. places
Recorded about 7 times a year in the area

Cold waves

7% of expected damage
Above average · higher than 71% of U.S. places
Recorded about 6 times a year in the area

Hail

6% of expected damage
Above average · higher than 66% of U.S. places
Recorded about 6 times a year in the area

Lower here

HurricanesIce stormsWinter weatherWildfireEarthquakesLandslidesLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic activity
Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Flood insurance claims

Does Ankeny flood?

Every paid claim on a federal flood insurance policy in Ankeny, from FEMA’s records.

21paid claims since 1993
$462Kpaid to owners
0homes flooded more than once
19932026

Biggest named events

  • Midwest Flooding: 1 claim, $8K
of homes in flood zones
are insured
of all homes
are insured
🏷️ 05% off flood insurance. Ankeny is in FEMA’s Community Rating System (class 9) for its flood-proofing work.
Insurance rates: Polk County.
Disasters that hit Ankeny

8 federal disasters brought FEMA money here

Disasters the President declared that paid out in Ankeny itself: aid to households, or repair grants to the City of Ankeny.

Brought FEMA money into AnkenyDeclared for Polk County only
2024

Severe Storms, Tornadoes, and Flooding

56 households applied for aid $100K aid approved $167K to the City of Ankeny for repairs
2024

Severe Storms and Tornadoes

10 households applied for aid $3K aid approved
2020

Severe Storms

211 households applied for aid $72K aid approved $765K to the City of Ankeny for repairs
2018

Severe Storms, Tornadoes, Straight-Line Winds, and Flooding

$1.0M to the City of Ankeny for repairs
2010

Severe Storms, Flooding, and Tornadoes

133 households applied for aid $172K aid approved $152K to the City of Ankeny for repairs
2008

Severe Storms, Tornadoes, and Flooding

110 households applied for aid $106K aid approved $315K to the City of Ankeny for repairs
2007

Severe Winter Storms

$84K to the City of Ankeny for repairs
2004

Severe Storms, Tornadoes, and Flooding

29 households applied for aid $28K aid approved
Polk County has had 19 natural disasters declared since 1953, most often severe storms and floods.
About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Ankeny covers 7 census tracts, combined by population.
Money that reached townFlood claims are matched to Ankeny’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Ankeny. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Ankeny total about $13.4M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01