Santa Margarita Ranchhouse · Photo: SeasideOside · CC BY-SA 4.0On FEMA’s figures, Camp Pendleton Mainside faces more hazard damage per building than 90% of U.S. towns, mostly from wildfire
On FEMA’s National Risk Index, Camp Pendleton Mainside gets a D for hazard risk: higher expected damage per building than 90% of U.S. towns, #325 of 847 in California. Most of that expected damage is wildfire (55%), then river and rain flooding (32%). 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 Camp Pendleton Mainside faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
Wildfire
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 Camp Pendleton Mainside’s grade
Wildfire is 55% of the building damage FEMA expects in Camp Pendleton Mainside, and Camp Pendleton Mainside’s rate of wildfire damage is in the top 1% of U.S. census tracts. Next is river and rain flooding at 32% (higher than 57% of U.S. census tracts).
D #325 of 847 in California; higher expected damage per building than 90% of U.S. towns (21,298).
All of Camp Pendleton Mainside’s residents live in one census tract; the figures are that tract’s.
The typical California town has higher expected damage than 92% of U.S. towns; within the state, Camp Pendleton Mainside has less expected damage per building than 62% of California towns.
In dollars, FEMA expects about $4.7M a year in losses across Camp Pendleton Mainside: $4.5M to buildings, the rest to people and crops.
Does Camp Pendleton Mainside flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Camp Pendleton Mainside. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Camp Pendleton Mainside isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: San Diego County.The storms Camp Pendleton Mainside remembers
None of the 30 disasters declared for San Diego County shows FEMA aid or repair money reaching Camp Pendleton Mainside itself in FEMA’s records, so these are its biggest flood-claim years.
San Diego County has had 30 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 18 FEMA wildfire suppression grants (Fire Management Assistance, not a disaster declaration) for fires in San Diego County, 2002–2018.
Get ready for what Camp Pendleton Mainside faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- 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.
- 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 Camp Pendleton Mainside
Is Camp Pendleton Mainside at risk for natural disasters?
On FEMA’s National Risk Index, Camp Pendleton Mainside has higher expected damage per building than 90% of U.S. towns: D for hazard risk, #325 of 847 in California. Most of the expected damage is wildfire (55%) and river and rain flooding (32%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Camp Pendleton Mainside 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 San Diego County, 24% of homes in mapped flood zones carry federal flood insurance, and 0.7% of all homes do.
How much is flood insurance in Camp Pendleton Mainside?
FEMA’s Community Rating System list shows no discount for Camp Pendleton Mainside’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
Is Camp Pendleton Mainside at risk from wildfire?
It is the largest share of the building damage FEMA expects here (55%), and Camp Pendleton Mainside’s rate for it is in the top 1% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Camp Pendleton Mainside.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Camp Pendleton Mainside’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.