Photo: Beyond My Ken · CC BY-SA 4.0More hazard damage per building is expected in Laguna Hills than in 86% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, Laguna Hills gets a D for hazard risk: higher expected damage per building than 86% of U.S. towns, #234 of 847 in California. Most of that expected damage is river and rain flooding (69%), then earthquakes (30%). Flood insurance has paid 2 claims here since 1998.
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 Laguna Hills 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
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 Laguna Hills’ grade
River and rain flooding is 69% of the building damage FEMA expects in Laguna Hills, and Laguna Hills’ rate of river and rain flooding damage is higher than 86% of U.S. census tracts. Next is earthquakes at 30% (higher than 87% of U.S. census tracts).
D #234 of 847 in California; higher expected damage per building than 86% of U.S. towns (21,298).
Laguna Hills’ residents live in 10 census tracts; FEMA’s figures are combined by where they live.
The typical California town has higher expected damage than 92% of U.S. towns; within the state, Laguna Hills has less expected damage per building than 72% of California towns.
In dollars, FEMA expects about $16.9M a year in losses across Laguna Hills: $16.0M to buildings, the rest to people and crops.
Does Laguna Hills flood? Rarely: 2 flood claims since 1998
Every paid claim on a federal flood insurance policy in Laguna Hills, from FEMA’s records: 0.2 per 1,000 homes, fewer than 98% of the 13,809 U.S. towns with a flood insurance record.
- The California Atmospheric River1 claim · $2K
Laguna Hills isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Orange County.2 federal disasters brought FEMA money to Laguna Hills
Disasters that paid out in Laguna Hills itself (aid to households or repair grants to the City of Laguna Hills), newest first, with that year’s flood claims.
- 2010Severe Winter Storms, Flooding, and Debris and Mud Flows$10K to the City of Laguna Hills for repairs
- 2004Severe Storms, Flooding, Debris Flows, and Mudslides7 households applied for aid$11K aid approved
Orange County has had 27 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 11 FEMA wildfire suppression grants (Fire Management Assistance, not a disaster declaration) for fires in Orange County, 2002–2022.
Old photos of Laguna Hills after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Laguna Hills archive →Laguna Hills and its neighbors
Laguna Hills is 3rd of the 7 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Laguna Niguel | Cmore damage than 73% | river and rain flooding | 5 |
| Aliso Viejo | C−more damage than 82% | river and rain flooding | 1 |
| Laguna Hills | Dmore damage than 86% | river and rain flooding | 2 |
| Laguna Woods | Dmore damage than 87% | river and rain flooding | 1 |
| Lake Forest | Dmore damage than 88% | river and rain flooding | 7 |
| Mission Viejo | Dmore damage than 89% | river and rain flooding | 14 |
| Irvine | Dmore damage than 92% | river and rain flooding | 29 |
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.
Get ready for what Laguna Hills 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.
- 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 Laguna Hills
Is Laguna Hills at risk for natural disasters?
On FEMA’s National Risk Index, Laguna Hills has higher expected damage per building than 86% of U.S. towns: D for hazard risk, #234 of 847 in California. Most of the expected damage is river and rain flooding (69%) and earthquakes (30%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Laguna Hills flood?
Flood insurance has paid 2 claims in Laguna Hills since 1998, $30K in all, or 0.2 per 1,000 homes, fewer than 98% of U.S. towns with a flood insurance record. The most claims came from California Atmospheric River (1).
Is Laguna Hills 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 Orange County, 19% of homes in mapped flood zones carry federal flood insurance, and 1.0% of all homes do.
How much is flood insurance in Laguna Hills?
FEMA’s Community Rating System list shows no discount for Laguna Hills’ 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 Laguna Hills?
By FEMA money that reached Laguna Hills, Severe Storms, Flooding, Debris Flows, and Mudslides (2004): 7 households applied for aid, $11K approved. By flood claims, California Atmospheric River: 1 paid, $2K.
Is Laguna Hills at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (69%), and Laguna Hills’ rate for it is higher than 86% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Laguna Hills.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Laguna Hills’ 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.