Photo: Katie Brady from Missoula, Montana, United States · CC BY-SA 2.0On FEMA’s figures, Bigfork faces more hazard damage per building than 88% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Bigfork gets a D for hazard risk: higher expected damage per building than 88% of U.S. towns, #40 of 42 in Montana. Most of that expected damage is river and rain flooding (59%), then earthquakes (27%). 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
What Bigfork 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
Earthquakes
Wildfire
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.
What’s behind Bigfork’s grade
River and rain flooding is 59% of the building damage FEMA expects in Bigfork, and Bigfork’s rate of river and rain flooding damage is higher than 84% of U.S. census tracts. Wildfire adds 13%, at a rate in the top 3% of U.S. census tracts.
D #40 of 42 in Montana; higher expected damage per building than 88% of U.S. towns (21,298).
Bigfork’s residents live in 4 census tracts; FEMA’s figures are combined by where they live.
The typical Montana town has lower expected damage than 54% of U.S. towns; within the state, Bigfork has more expected damage per building than 95% of Montana towns.
In dollars, FEMA expects about $11.1M a year in losses across Bigfork: $3.7M to buildings, the rest to people and crops.
Does Bigfork flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Bigfork. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Bigfork isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Flathead County.1 federal disaster brought FEMA money to Bigfork
Disasters that paid out in Bigfork itself (aid to households or repair grants to Bigfork), newest first, with that year’s flood claims.
- 2011Severe Storms and Flooding6 households applied for aid$3K aid approved
Flathead County has had 8 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 4 FEMA wildfire suppression grants (Fire Management Assistance, not a disaster declaration) for fires in Flathead County, 2000–2003.
Old photos of Bigfork after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Bigfork archive →Get ready for what Bigfork faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- 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.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- 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.
- 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.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Bigfork
Is Bigfork at risk for natural disasters?
On FEMA’s National Risk Index, Bigfork has higher expected damage per building than 88% of U.S. towns: D for hazard risk, #40 of 42 in Montana. Most of the expected damage is river and rain flooding (59%) and earthquakes (27%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Bigfork 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 Flathead County, 13% of homes in mapped flood zones carry federal flood insurance, and 0.8% of all homes do.
How much is flood insurance in Bigfork?
FEMA’s Community Rating System list shows no discount for Bigfork’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 Bigfork?
By FEMA money that reached Bigfork, Severe Storms and Flooding (2011): 6 households applied for aid, $3K approved.
Is Bigfork at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (59%), and Bigfork’s rate for it is higher than 84% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Bigfork.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Bigfork’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.