Natural hazards · Johnson Siding

Johnson Siding, SD natural hazards

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

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

Expected damage

How exposed is Johnson Siding?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Johnson Siding to be higher than in 86% of U.S. communities, mostly from inland flooding and wildfires.

Inland flooding55%Wildfire31%Hail5%Everything else9%

By hazard

What Johnson Siding faces

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

Inland flooding

55% of expected damage

Well above average · higher than 89% of U.S. places

Recorded about 2 times a year in the area

Wildfire

31% of expected damage

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

Hail

5% of expected damage

Well above average · higher than 93% of U.S. places

Recorded about 6 times a year in the area

Lower here

TornadoesIce stormsWinter weatherCold wavesHeat wavesEarthquakesLandslidesStrong windLightningDroughtAvalanches

Not a risk here

Coastal floodingHurricanesTsunamisVolcanic 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 Johnson Siding flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Pennington County.

Disasters that hit Johnson Siding

Federal disasters declared here

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

Brought FEMA money into Johnson SidingDeclared for Pennington County only

Pennington County has had 19 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. Johnson Siding 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 Johnson Siding’s own flood-insurance community; household aid to the registrant’s city; repair grants to Johnson Siding. 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.