Natural hazards · Sioux Center

Sioux Center, IA natural hazards

Most of the natural-hazard damage FEMA expects in Sioux Center comes from tornadoes, and overall the risk is low for a U.S. community. Flood insurance has paid 1 claim here since 2010. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Sioux Center?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Sioux Center to be higher than in 20% of U.S. communities, mostly from tornadoes and inland flooding.

Tornadoes37%Inland flooding29%Cold waves13%Hail6%Strong wind6%Everything else10%

By hazard

What Sioux Center faces

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

Tornadoes

37% of expected damage

Well above average · among the top 1% of U.S. places

Inland flooding

29% of expected damage

Well below average · higher than 11% of U.S. places

Recorded about 3 times a year in the area

Cold waves

13% of expected damage

Above average · higher than 63% of U.S. places

Recorded about 8 times a year in the area

Hail

6% of expected damage

Well above average · higher than 81% of U.S. places

Recorded about 7 times a year in the area

Strong wind

6% of expected damage

Above average · higher than 67% of U.S. places

Recorded about 4 times a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Sioux Center flood?

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

1paid claims since 2010

$2Kpaid to owners

0homes flooded more than once

20102026

of all homes
are insured

No community discount. Sioux Center isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Sioux County.

Disasters that hit Sioux Center

5 federal disasters brought FEMA money here

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

Brought FEMA money into Sioux CenterDeclared for Sioux County only

2024

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

29 households applied for aid $211K aid approved

2013

Severe Storms, Tornadoes, and Flooding

$11K to the City of Sioux Center for repairs

2013

Severe Winter Storm

$104K to the City of Sioux Center for repairs

2010

Severe Storms, Flooding, and Tornadoes

55 households applied for aid $67K aid approved $24K to the City of Sioux Center for repairs

2009

Severe Winter Storms and Snowstorm

$35K to the City of Sioux Center for repairs

Sioux County has had 13 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. Sioux Center covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Sioux Center’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Sioux Center. 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 Sioux Center total about $3.2M 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.