Natural hazards · Seneca

Seneca, SC natural hazards

Most of the natural-hazard damage FEMA expects in Seneca comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 3 claims here since 1989. 8 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Seneca?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Seneca to be higher than in 27% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding40%Cold waves30%Tornadoes12%Everything else18%

By hazard

What Seneca faces

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

Inland flooding

40% of expected damage

Below average · higher than 41% of U.S. places

Recorded about once a year in the area

Cold waves

30% of expected damage

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

Recorded about once every 5 years in the area

Tornadoes

12% of expected damage

Above average · higher than 64% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Seneca flood?

Every paid claim on a federal flood insurance policy in Seneca, from FEMA’s records.

3paid claims since 1989

$10Kpaid to owners

0homes flooded more than once

19892026

Biggest named events

Hurricane Hugo: 1 claim, $1K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Oconee County.

Disasters that hit Seneca

8 federal disasters brought FEMA money here

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

Brought FEMA money into SenecaDeclared for Oconee County only

2026

Severe Winter Storm

$208K to the City of Seneca for repairs

2024

Hurricane Helene

2,919 households applied for aid $1.6M aid approved $827K to the City of Seneca for repairs

2020

Severe Storms, Tornadoes, and Straight-Line Winds

733 households applied for aid $900K aid approved $6.2M to the City of Seneca for repairs

2020

Severe Storms, Tornadoes, Straight-Line Winds, and Flooding

$18K to the City of Seneca for repairs

2017

Hurricane Irma

$130K to the City of Seneca for repairs

2005

Severe Ice Storm

$128K to the City of Seneca for repairs

2004

Tropical Storm Frances

9 households applied for aid $5K aid approved

2004

Severe Ice Storm

$3K to the City of Seneca for repairs

Oconee County has had 18 natural disasters declared since 1953, most often hurricanes 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. Seneca covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Seneca’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Seneca. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Seneca total about $1.1M a year, counting buildings, people and crops.

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.