Natural hazards · San Isidro

San Isidro, TX natural hazards

Most of the natural-hazard damage FEMA expects in San Isidro comes from cold waves, and overall the risk is moderate for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is San Isidro?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in San Isidro to be higher than in 47% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves41%Inland flooding26%Hurricanes13%Drought9%Wildfire6%Everything else6%

By hazard

What San Isidro faces

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

Cold waves

41% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about 3 times a year in the area

Inland flooding

26% of expected damage

Above average · higher than 52% of U.S. places

Recorded about 2 times a year in the area

Hurricanes

13% of expected damage

Well above average · higher than 82% of U.S. places

Recorded about once every 11 years in the area

Drought

9% of expected damage

Recorded about 90 times a year in the area

Wildfire

6% of expected damage

Well above average · higher than 96% of U.S. places

Lower here

TornadoesHailIce stormsWinter weatherHeat wavesEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Isidro flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Starr County.

Disasters that hit San Isidro

2 federal disasters brought FEMA money here

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

Brought FEMA money into San IsidroDeclared for Starr County only

2025

Severe Storms and Flooding

2 households applied for aid $6K aid approved

2007

Severe Storms, Tornadoes, and Flooding

1 household applied for aid $3K aid approved

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

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 Isidro is smaller than a census tract, so it shares the figures of the tract around its center.

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

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.