Natural hazards · South Harrison

South Harrison, NJ natural hazards

Most of the natural-hazard damage FEMA expects in South Harrison comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 1 claim here since 1980. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is South Harrison?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in South Harrison to be higher than in 16% of U.S. communities, mostly from inland flooding.

Inland flooding48%Drought10%Hurricanes9%Strong wind6%Heat waves6%Earthquakes5%Everything else16%

By hazard

What South Harrison faces

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

Inland flooding

48% of expected damage

Below average · higher than 27% of U.S. places

Recorded about 3 times a year in the area

Drought

10% of expected damage

Recorded about 6 times a year in the area

Hurricanes

9% of expected damage

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

Recorded about once every 11 years in the area

Strong wind

6% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about 6 times a year in the area

Heat waves

6% of expected damage

Well below average · higher than 6% of U.S. places

Recorded about 11 times a year in the area

Earthquakes

5% of expected damage

Above average · higher than 61% of U.S. places

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesWildfireLandslidesLightning

Not a risk here

AvalanchesTsunamisVolcanic 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 South Harrison flood?

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

1paid claims since 1980

$619paid to owners

0homes flooded more than once

19802026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Gloucester County.

Disasters that hit South Harrison

4 federal disasters brought FEMA money here

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

Brought FEMA money into South HarrisonDeclared for Gloucester County only

2021

Remnants of Hurricane Ida

$4K to the Township of South Harrison for repairs

2011

Hurricane Irene

$95K to the Township of South Harrison for repairs

2010

Severe Winter Storm and Snowstorm

$7K to the Township of South Harrison for repairs

2009

Snowstorm

$9K to the Township of South Harrison for repairs

Gloucester County has had 22 natural disasters declared since 1953, most often hurricanes and severe storms.

Around South Harrison

South Harrison and the towns around it

Very lowLowModerateHighVery high

Pilesgrovemostly inland floodingLow

Woolwichmostly inland floodingVery low

South Harrisonmostly inland floodingVery low

Harrisonmostly inland floodingVery low

Upper Pittsgrovemostly inland floodingVery low

Elkmostly inland floodingVery low

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. South Harrison covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to South Harrison’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of South Harrison. 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 South Harrison 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.