Natural hazards · Rosemont

Rosemont, CA natural hazards

Most of the natural-hazard damage FEMA expects in Rosemont comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 20 claims here since 1986.

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

Expected damage

How exposed is Rosemont?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Rosemont to be higher than in 22% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding64%Earthquakes31%Everything else5%

By hazard

What Rosemont faces

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

Inland flooding

64% of expected damage

Below average · higher than 33% of U.S. places

Recorded about 2 times a year in the area

Earthquakes

31% of expected damage

Well above average · higher than 81% of U.S. places

Lower here

TornadoesHailWinter weatherHeat wavesWildfireLandslidesStrong windLightningDroughtVolcanic activity

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesAvalanchesTsunamis

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 Rosemont flood?

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

20paid claims since 1986

$209Kpaid to owners

0homes flooded more than once

19862026

Biggest named events

Pineapple Express - Southern: 2 claims, $10K

of homes in flood zones
are insured

of all homes
are insured

No community discount. Rosemont isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Sacramento County.

Disasters that hit Rosemont

Federal disasters declared here

None of the disasters declared for Sacramento County shows FEMA aid or repair money reaching Rosemont itself in FEMA’s records.

Brought FEMA money into RosemontDeclared for Sacramento County only

Sacramento County has had 19 natural disasters declared since 1953, most often floods and severe storms.

Around Rosemont

Rosemont and the towns around it

Very lowLowModerateHighVery high

Sacramentomostly earthquakesLow

Mathermostly inland floodingLow

Rosemontmostly inland floodingLow

La Rivieramostly inland floodingVery low

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. Rosemont covers 6 census tracts, combined by population.

Money that reached townFlood claims are matched to Rosemont’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to Rosemont. 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 Rosemont total about $3.3M 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.