Natural hazards · Rockdale

Rockdale, SD natural hazards

Most of the natural-hazard damage FEMA expects in Rockdale comes from cold waves, and overall the risk is high 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 Rockdale?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Rockdale to be higher than in 62% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves35%Inland flooding24%Wildfire12%Hail11%Drought8%Tornadoes6%Everything else5%

By hazard

What Rockdale faces

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

Cold waves

35% of expected damage

Above average · higher than 66% of U.S. places

Recorded about 9 times a year in the area

Inland flooding

24% of expected damage

Above average · higher than 57% of U.S. places

Recorded about once a year in the area

Wildfire

12% of expected damage

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

Hail

11% of expected damage

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

Recorded about 4 times a year in the area

Drought

8% of expected damage

Recorded about 13 times a year in the area

Tornadoes

6% of expected damage

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

Recorded about once every 2 years in the area

Lower here

Ice stormsWinter weatherHeat wavesEarthquakesLandslidesStrong windLightning

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 Rockdale flood?

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

of all homes
are insured

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

Insurance rates: Hand County.

Disasters that hit Rockdale

2 federal disasters brought FEMA money here

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

Brought FEMA money into RockdaleDeclared for Hand County only

2010

Flooding

$5K to the Township of Rockdale for repairs

2008

Severe Storms and Flooding

$3K to the Township of Rockdale for repairs

Hand County has had 19 natural disasters declared since 1953, most often floods and severe storms.

Around Rockdale

Rockdale and the towns around it

Very lowLowModerateHighVery high

Rockdalemostly cold wavesHigh

Loganmostly cold wavesHigh

Midlandmostly cold wavesHigh

Glendalemostly cold wavesHigh

Spring Hillmostly cold wavesHigh

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. Rockdale 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 Rockdale’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Rockdale. 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.