Natural hazards · Agar

Agar, SD natural hazards

Most of the natural-hazard damage FEMA expects in Agar comes from inland flooding, and overall the risk is high for a U.S. community.

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

Expected damage

How exposed is Agar?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Agar to be higher than in 67% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding50%Cold waves29%Wildfire5%Everything else16%

By hazard

What Agar faces

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

Inland flooding

50% of expected damage

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

Recorded about once every 2 years in the area

Cold waves

29% of expected damage

Above average · higher than 65% of U.S. places

Recorded about 8 times a year in the area

Wildfire

5% of expected damage

Well above average · higher than 95% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherHeat wavesEarthquakesLandslidesStrong windLightningDrought

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 Agar flood?

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

Disasters that hit Agar

Federal disasters declared here

None of the disasters declared for Sully County shows FEMA aid or repair money reaching Agar itself in FEMA’s records.

Brought FEMA money into AgarDeclared for Sully County only

Sully County has had 14 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. Agar 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 Agar’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Agar. 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.