Natural hazards · Brant Lake

Brant Lake, SD natural hazards

Most of the natural-hazard damage FEMA expects in Brant Lake comes from inland flooding, and overall the risk is moderate 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 Brant Lake?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Brant Lake to be higher than in 56% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding45%Tornadoes24%Cold waves13%Everything else18%

By hazard

What Brant Lake faces

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

Inland flooding

45% of expected damage

Above average · higher than 62% of U.S. places

Recorded about once a year in the area

Tornadoes

24% of expected damage

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

Recorded about once every 9 years in the area

Cold waves

13% of expected damage

Below average · higher than 34% of U.S. places

Recorded about 10 times a year in the area

Lower here

HailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Brant Lake flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Lake County.

Disasters that hit Brant Lake

2 federal disasters brought FEMA money here

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

Brought FEMA money into Brant LakeDeclared for Lake County only

2019

Severe Storms, Tornadoes, and Flooding

2 households applied for aid $21K to the City of Brant Lake for repairs

2019

Severe Winter Storm, Snowstorm, and Flooding

$29K to the City of Brant Lake for repairs

Lake County has had 17 natural disasters declared since 1953, most often floods and severe storms.

Around Brant Lake

Brant Lake and the towns around it

Very lowLowModerateHighVery high

Brant Lakemostly inland floodingModerate

Chestermostly inland floodingModerate

Brant Lake Southmostly inland floodingModerate

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. Brant Lake 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 Brant Lake’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Brant Lake. 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.