Natural hazards · Oceano

Oceano, CA natural hazards

Most of the natural-hazard damage FEMA expects in Oceano comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 2 claims here since 2010. 3 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Oceano?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Oceano to be higher than in 82% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding62%Earthquakes26%Tsunamis11%Everything else1%

By hazard

What Oceano faces

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

Inland flooding

62% of expected damage

Well above average · higher than 89% of U.S. places

Recorded about once every 2 years in the area

Earthquakes

26% of expected damage

Well above average · higher than 86% of U.S. places

Tsunamis

11% of expected damage

Well above average · among the top 1% of U.S. places

Lower here

Coastal floodingTornadoesHailWinter weatherHeat wavesWildfireLandslidesStrong windLightningDrought

Not a risk here

HurricanesIce stormsCold wavesAvalanchesVolcanic activity

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 Oceano flood?

Every paid claim on a federal flood insurance policy in Oceano, from FEMA’s records.

2paid claims since 2010

$60Kpaid to owners

0homes flooded more than once

20102026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Oceano 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 Luis Obispo County.

Disasters that hit Oceano

3 federal disasters brought FEMA money here

Disasters the President declared that paid out in Oceano itself: aid to households, or repair grants to Oceano.

Brought FEMA money into OceanoDeclared for San Luis Obispo County only

2023

Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides

7 households applied for aid $6K aid approved

2022

Severe Winter Storms, Flooding, Landslides, and Mudslides

48 households applied for aid $106K aid approved

2003

Earthquake

48 households applied for aid $67K aid approved

San Luis Obispo County has had 24 natural disasters declared since 1953, most often floods and severe storms.

Around Oceano

Oceano and the towns around it

Very lowLowModerateHighVery high

Arroyo Grandemostly inland floodingVery high

Oceanomostly inland floodingVery high

Grover Beachmostly inland floodingHigh

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Oceano covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Oceano’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Oceano. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Oceano total about $2.8M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau.