Guest, Sign inJoin

Post to Delta Junction

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
Sullivan RoadhouseSullivan Roadhouse · Photo: Ovmalyk · CC BY-SA 3.0
–Not graded
Natural hazards in Delta Junction · FEMA

Storms, floods and disasters in Delta Junction

Delta Junction isn’t graded for hazard risk: FEMA’s tract figures aren’t matched to Delta Junction yet.

Flood claims
0
paid since 1978 · $0
Disasters paid out here
2
of 9 declared for its 2 counties
By hazard

What Delta Junction faces

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

Wildfire

60%of expected building damage
Well above average · in the top 1% of U.S. census tracts

Earthquakes

28%of expected building damage
Well above average · higher than 89% of U.S. census tracts

River and rain flooding

12%of expected building damage
Well below average · lower than 94% of U.S. census tracts
Smaller shares here
 Winter storms top 5% Ice storms Cold waves top 3% Tornadoes Hail Strong wind Landslides Lightning Volcanic activity top 4%
FEMA models no building damage here
Coastal floodingHurricanesHeat wavesAvalanchesTsunamis
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts avalanches at 20% of Delta Junction’s 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.
Flood insurance claims

Does Delta Junction flood? No paid flood claims on record

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

Disasters

2 federal disasters brought FEMA money to Delta Junction

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

  1. 2002Earthquake9 households applied for aid$15K aid approved
  2. 1999Severe Winter Storms and Avalanches$11K to the City of Delta Junction for repairs
Disasters declared, by decade
Paid out in Delta Junctionits 2 counties only

Its 2 counties have had 9 natural disasters declared by the President since 1953, most often floods, then severe storms.

Also 2 FEMA wildfire suppression grants (Fire Management Assistance, not a disaster declaration) for fires in its 2 counties, 2004–2026.

Were you here?

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

Add to the Delta Junction archive →
Next door

Delta Junction and its neighbors

How expected damage per building compares across the town line. Tap a town to see its hazards.

Deltana: hazard risk DBig Delta: not gradedDeltanaBig DeltaDelta Junction
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
DeltanaDmore damage than 92%wildfire—
Big Delta—565 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 Delta Junction faces

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

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 ↗
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 ↗
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 Delta Junction

Is Delta Junction 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.

How much is flood insurance in Delta Junction?

FEMA’s Community Rating System list shows no discount for Delta Junction’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 Delta Junction?

By FEMA money that reached Delta Junction, Earthquake (2002): 9 households applied for aid, $15K approved.

Storm stories

Memories, warnings and help from neighbors in Delta Junction.

Town Square →
Start the conversation

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