Natural hazards · Dahlgren

Dahlgren, VA natural hazards

Most of the natural-hazard damage FEMA expects in Dahlgren comes from inland flooding, and overall the risk is moderate for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Dahlgren?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Dahlgren to be higher than in 41% of U.S. communities, mostly from inland flooding and hurricanes.

Inland flooding43%Hurricanes34%Strong wind5%Everything else18%

By hazard

What Dahlgren faces

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

Inland flooding

43% of expected damage

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

Recorded about once every 2 years in the area

Hurricanes

34% of expected damage

Well above average · higher than 88% of U.S. places

Recorded about once every 10 years in the area

Strong wind

5% of expected damage

Well above average · higher than 85% of U.S. places

Recorded about 5 times a year in the area

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesLightningDrought

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 Dahlgren flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: King George County.

Disasters that hit Dahlgren

2 federal disasters brought FEMA money here

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

Brought FEMA money into DahlgrenDeclared for King George County only

2011

Earthquake

1 household applied for aid

2003

Hurricane Isabel

7 households applied for aid $5K aid approved

King George County has had 24 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. Dahlgren 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 Dahlgren’s own flood-insurance community; household aid to the registrant’s city; repair grants to Dahlgren. 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.