Natural hazards · Joanna

Joanna, SC natural hazards

Most of the natural-hazard damage FEMA expects in Joanna comes from cold waves, and overall the risk is low for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Joanna?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Joanna to be higher than in 32% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves45%Inland flooding23%Strong wind5%Drought5%Everything else22%

By hazard

What Joanna faces

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

Cold waves

45% of expected damage

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

Recorded about once every 5 years in the area

Inland flooding

23% of expected damage

Below average · higher than 38% of U.S. places

Recorded about once a year in the area

Strong wind

5% of expected damage

Well above average · higher than 82% of U.S. places

Recorded about 5 times a year in the area

Drought

5% of expected damage

Recorded about 39 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherHeat 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 Joanna flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Laurens County.

Disasters that hit Joanna

1 federal disaster brought FEMA money here

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

Brought FEMA money into JoannaDeclared for Laurens County only

2024

Hurricane Helene

339 households applied for aid $326K aid approved

Laurens County has had 17 natural disasters declared since 1953, most often hurricanes and ice 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. Joanna 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 Joanna’s own flood-insurance community; household aid to the registrant’s city; repair grants to Joanna. 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.