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B−Hazard risk
Natural hazards in Sunnyside · FEMA

FEMA expects about as much hazard damage per building in Sunnyside as in the typical U.S. town, mostly from river and rain flooding

On FEMA’s National Risk Index, Sunnyside gets a B− for hazard risk: higher expected damage per building than 53% of U.S. towns, #59 of 847 in California. Most of that expected damage is river and rain flooding (70%), 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

more than 53%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade#59 of 847 in California
By hazard

What Sunnyside 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

70%of expected building damage
About average · higher than 59% of U.S. census tracts
Recorded about 4 times a year in the area

Earthquakes

29%of expected building damage
Well above average · higher than 83% of U.S. census tracts
Smaller shares here
 Tornadoes Hail Heat waves top 2% Lightning Strong wind Wildfire Winter storms
FEMA models no building damage here
Coastal floodingHurricanesIce stormsCold wavesLandslidesAvalanchesTsunamisVolcanic 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.
Hazard risk grade

What’s behind Sunnyside’s grade

River and rain flooding is 70% of the building damage FEMA expects in Sunnyside, and Sunnyside’s rate of river and rain flooding damage is higher than 59% of U.S. census tracts. Next is earthquakes at 29% (higher than 83% of U.S. census tracts).

Where Sunnyside sits
Sunnyside
Least damageMiddleMost damage

B− #59 of 847 in California; higher expected damage per building than 53% of U.S. towns (21,298).

Sunnyside’s residents live in 5 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
River and rain flooding70%Earthquakes29%Everything else1%

The typical California town has higher expected damage than 92% of U.S. towns; within the state, Sunnyside has less expected damage per building than 93% of California towns.

In dollars, FEMA expects about $1.2M a year in losses across Sunnyside: $1.1M to buildings, the rest to people and crops.

A small-area figure. Sunnyside covers 5 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 Sunnyside flood? No paid flood claims on record

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

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

Insurance rates: Fresno County.
Disasters

The storms Sunnyside remembers

None of the 15 disasters declared for Fresno County shows FEMA aid or repair money reaching Sunnyside itself in FEMA’s records, so these are its biggest flood-claim years.

Disasters declared, by decade
Paid out in SunnysideFresno County only

Fresno County has had 15 natural disasters declared by the President since 1953, most often floods, then severe storms. 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 Fresno County, 2016–2020.

Next door

Sunnyside and its neighbors

Sunnyside has the lowest expected damage per building of the 2 graded towns here. Tap a town to see its hazards.

Fresno: hazard risk CFresnoSunnyside
Lowest fifthSecondMiddleFourthHighest fifth
TownHazard riskMostly (buildings)Flood claims
SunnysideB−more damage than 53%river and rain flooding0
FresnoCmore damage than 69%river and rain flooding84

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 Sunnyside 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 ↗
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 Sunnyside

Is Sunnyside at risk for natural disasters?

On FEMA’s National Risk Index, Sunnyside has higher expected damage per building than 53% of U.S. towns: B− for hazard risk, #59 of 847 in California. Most of the expected damage is river and rain flooding (70%) and earthquakes (29%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Sunnyside 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 Fresno County, 20% of homes in mapped flood zones carry federal flood insurance, and 0.3% of all homes do.

How much is flood insurance in Sunnyside?

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

Is Sunnyside at risk from river and rain flooding?

It is the largest share of the building damage FEMA expects here (70%), and Sunnyside’s rate for it is higher than 59% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Sunnyside.

Town Square →
Start the conversation

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