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WoodgroveWoodgrove · Photo: Jerrye & Roy Klotz, MD · CC BY-SA 3.0
–Not graded
Natural hazards in Round Hill · FEMA

Storms, floods and disasters in Round Hill

Round Hill isn’t graded for hazard risk: Round Hill has 678 residents; we grade towns of 1,000 or more.

Flood claims
0
paid since 1978 · $0
Disasters paid out here
3
of 12 declared for Loudoun County
By hazard

What Round Hill faces

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

River and rain flooding

88%of expected building damage
Above average · higher than 63% of U.S. census tracts
Recorded about 3 times a year in the area
Smaller shares here
 Hurricanes Tornadoes Hail Earthquakes Strong wind Wildfire Winter storms Cold waves Lightning Ice storms Heat waves Landslides
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity

Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.

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 Round Hill flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Round Hill. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Round Hill 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

3 federal disasters brought FEMA money to Round Hill

Disasters that paid out in Round Hill itself (aid to households or repair grants to the Town of Round Hill), newest first, with that year’s flood claims.

  1. 2016Severe Winter Storm and Snowstorm$9K to the Town of Round Hill for repairs
  2. 2010Severe Winter Storms and Snowstorms$14K to the Town of Round Hill for repairs
  3. 2003Hurricane Isabel7 households applied for aid$12K aid approved$5K to the Town of Round Hill for repairs
Disasters declared, by decade
Paid out in Round HillLoudoun County only

Loudoun County has had 12 natural disasters declared by the President since 1953, most often winter storms, then hurricanes and tropical storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Were you here?

Old photos of Round Hill after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Round Hill archive →
Be ready

Get ready for what Round Hill faces

A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.

When the river rises
  • Turn around at flooded roads: a foot of moving water can carry off a car.
  • Flood insurance usually takes 30 days to start, so buy it before the forecast.
  • Keep papers and medicines up high, in a grab-and-go bag.
More from Ready.gov ↗
Before you buy or rent
  • Look up the address on FEMA’s flood map.
  • Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
  • Get a flood insurance quote early: policies usually start 30 days after you buy.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Round Hill

Is Round Hill in a flood zone?

Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Loudoun County, 91% of homes in mapped flood zones carry federal flood insurance, and 1.0% of all homes do.

How much is flood insurance in Round Hill?

FEMA’s Community Rating System list shows no discount for Round Hill’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

What was the biggest storm in Round Hill?

By FEMA money that reached Round Hill, Hurricane Isabel (2003): 7 households applied for aid, $12K approved, and $5K to the Town of Round Hill for repairs.

Storm stories

Memories, warnings and help from neighbors in Round Hill.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Round Hill’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.