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B−Hazard risk
Natural hazards in Four Corners · FEMA

On FEMA’s figures, Four Corners faces about as much hazard damage per building as the typical U.S. town, mostly from river and rain flooding

On FEMA’s National Risk Index, Four Corners gets a B− for hazard risk: lower expected damage per building than 54% of U.S. towns, #22 of 42 in Montana. Most of that expected damage is river and rain flooding (57%), then earthquakes (29%). FEMA’s files show no paid flood insurance claims here.

Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded

less than 54%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#22 of 42 in Montana
By hazard

What Four Corners 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

57%of expected building damage
Below average · lower than 63% of U.S. census tracts
Recorded about once every 2 years in the area

Earthquakes

29%of expected building damage
Well above average · higher than 83% of U.S. census tracts

Wildfire

8%of expected building damage
Well above average · in the top 6% of U.S. census tracts
Smaller shares here
 Hail Tornadoes Strong wind Winter storms Ice storms Cold waves Heat waves Landslides Lightning Avalanches top 0%
FEMA models no building damage here
Coastal floodingHurricanesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts avalanches at 55% of Four Corners’ expected losses. Avalanches do little damage to buildings (0.0%), so they aren’t part of the grade.

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.
Hazard risk grade

What’s behind Four Corners’ grade

River and rain flooding is 57% of the building damage FEMA expects in Four Corners, and Four Corners’ rate of river and rain flooding damage is lower than 63% of U.S. census tracts. Wildfire adds 8%, at a rate in the top 6% of U.S. census tracts.

Where Four Corners sits
Four Corners
Least damageMiddleMost damage

B− #22 of 42 in Montana; lower expected damage per building than 54% of U.S. towns (21,298).

Four Corners’ residents live in 3 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding57%Earthquakes29%Wildfire8%Everything else6%

The typical Montana town has lower expected damage than 54% of U.S. towns; within the state, Four Corners has more expected damage per building than 51% of Montana towns.

In dollars, FEMA expects about $6.4M a year in losses across Four Corners: $1.7M to buildings, the rest to people and crops.

A small-area figure. Four Corners covers 3 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Four Corners flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Four Corners. 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

Four Corners isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Gallatin County.
Disasters

The storms Four Corners remembers

None of the 4 disasters declared for Gallatin County shows FEMA aid or repair money reaching Four Corners itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in Four CornersGallatin County only

Gallatin County has had 4 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.

Also 2 FEMA wildfire suppression grants (Fire Management Assistance, not a disaster declaration) for fires in Gallatin County, 2000–2020.

Next door

Four Corners and its neighbors

Four Corners has the lowest expected damage per building of the 1 graded towns here. Tap a town to see its hazards.

Gallatin Gateway: not gradedGallatin GatewayFour Corners
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
Four CornersB−less damage than 54%river and rain flooding0
Gallatin Gateway—933 residents; we grade 1,000+

Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.

Be ready

Get ready for what Four Corners 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 ↗
Earthquakes
  • Drop, cover and hold on.
  • Strap tall furniture and the water heater to the wall.
  • Know how to shut off the gas.
More from Ready.gov ↗
Wildfire
  • Clear dead leaves and brush within 5 feet of the house.
  • Sign up for local alerts and know two ways out.
  • Keep N95 masks for smoky days.
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 Four Corners

Is Four Corners at risk for natural disasters?

On FEMA’s National Risk Index, Four Corners has lower expected damage per building than 54% of U.S. towns: B− for hazard risk, #22 of 42 in Montana. Most of the expected damage is river and rain flooding (57%) and earthquakes (29%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Four Corners 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 Gallatin County, 20% of homes in mapped flood zones carry federal flood insurance, and 0.8% of all homes do.

How much is flood insurance in Four Corners?

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

Is Four Corners at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (57%), and Four Corners’ rate for it is lower than 63% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Four Corners.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Four Corners’ 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.