Natural hazards · San Luis

San Luis, AZ natural hazards

Most of the natural-hazard damage FEMA expects in San Luis comes from earthquakes, and overall the risk is high for a U.S. community.

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

Expected damage

How exposed is San Luis?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in San Luis to be higher than in 79% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes60%Inland flooding29%Heat waves11%

By hazard

What San Luis faces

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

Earthquakes

60% of expected damage

Well above average · higher than 91% of U.S. places

Inland flooding

29% of expected damage

Above average · higher than 72% of U.S. places

Recorded about once a year in the area

Heat waves

11% of expected damage

Above average · higher than 60% of U.S. places

Recorded about 17 times a year in the area

Lower here

HurricanesTornadoesHailWildfireLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingIce stormsWinter weatherCold wavesAvalanchesTsunamisVolcanic 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 San Luis flood?

FEMA's records show no paid flood insurance claims in San Luis.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Yuma County.

Disasters that hit San Luis

Federal disasters declared here

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

Brought FEMA money into San LuisDeclared for Yuma County only

Yuma County has had 4 natural disasters declared since 1953, most often floods and hurricanes.

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. San Luis covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to San Luis’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of San Luis. 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 San Luis total about $5.4M 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.