Natural hazards · Swan

Swan, IA natural hazards

Most of the natural-hazard damage FEMA expects in Swan comes from inland flooding, and overall the risk is low for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Swan?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Swan to be higher than in 24% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding37%Tornadoes26%Drought14%Heat waves7%Strong wind5%Everything else11%

By hazard

What Swan faces

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

Inland flooding

37% of expected damage

Below average · higher than 26% of U.S. places

Recorded about 3 times a year in the area

Tornadoes

26% of expected damage

Well above average · higher than 96% of U.S. places

Recorded about once every 18 years in the area

Drought

14% of expected damage

Recorded about 5 times a year in the area

Heat waves

7% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about 7 times a year in the area

Strong wind

5% of expected damage

Well above average · higher than 92% of U.S. places

Recorded about 6 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherCold wavesWildfireEarthquakesLandslidesLightning

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 Swan flood?

FEMA's records show no paid flood insurance claims in Swan.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Marion County.

Disasters that hit Swan

2 federal disasters brought FEMA money here

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

Brought FEMA money into SwanDeclared for Marion County only

2010

Severe Storms, Flooding, and Tornadoes

4 households applied for aid $3K aid approved $3K to the City of Swan for repairs

2008

Severe Storms, Tornadoes, and Flooding

4 households applied for aid $3K aid approved $2K to the City of Swan for repairs

Marion County has had 16 natural disasters declared since 1953, most often floods and severe storms.

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. Swan is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Swan’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Swan. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.