Natural hazards · South Riding

South Riding, VA natural hazards

Most of the natural-hazard damage FEMA expects in South Riding comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 2 claims here since 2006.

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

Expected damage

How exposed is South Riding?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in South Riding to be higher than in 31% of U.S. communities, mostly from inland flooding.

Inland flooding68%Heat waves9%Tornadoes7%Everything else16%

By hazard

What South Riding faces

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

Inland flooding

68% of expected damage

Above average · higher than 55% of U.S. places

Recorded about 3 times a year in the area

Heat waves

9% of expected damage

Below average · higher than 43% of U.S. places

Recorded about 5 times a year in the area

Tornadoes

7% of expected damage

Above average · higher than 50% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherCold 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 South Riding flood?

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

2paid claims since 2006

$4Kpaid to owners

0homes flooded more than once

20062026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Loudoun County.

Disasters that hit South Riding

Federal disasters declared here

None of the disasters declared for Loudoun County shows FEMA aid or repair money reaching South Riding itself in FEMA’s records.

Brought FEMA money into South RidingDeclared for Loudoun County only

Loudoun County has had 13 natural disasters declared since 1953, most often winter storms and hurricanes.

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 Riding covers 5 census tracts, combined by population.

Money that reached townFlood claims are matched to South Riding’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to South Riding. 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 Riding total about $4.9M 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.