Natural hazards · Summerlin South

Summerlin South, NV natural hazards

Most of the natural-hazard damage FEMA expects in Summerlin South comes from inland flooding, and overall the risk is moderate for a U.S. community.

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

Expected damage

How exposed is Summerlin South?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Summerlin South to be higher than in 53% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding62%Heat waves27%Earthquakes6%Everything else5%

By hazard

What Summerlin South 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 75% of U.S. places

Recorded about 7 times a year in the area

Heat waves

27% of expected damage

Below average · higher than 48% of U.S. places

Recorded about 13 times a year in the area

Earthquakes

6% of expected damage

Above average · higher than 73% of U.S. places

Lower here

TornadoesHailWinter weatherWildfireLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesDroughtAvalanchesTsunamisVolcanic 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 Summerlin South flood?

FEMA's records show no paid flood insurance claims in Summerlin South.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Clark County.

Disasters that hit Summerlin South

Federal disasters declared here

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

Brought FEMA money into Summerlin SouthDeclared for Clark County only

Clark County has had 12 natural disasters declared since 1953, most often fires and severe storms.

Around Summerlin South

Summerlin South and the towns around it

Very lowLowModerateHighVery high

Summerlin Southmostly inland floodingModerate

Spring Valleymostly inland floodingModerate

Las Vegasmostly inland floodingLow

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. Summerlin South covers 6 census tracts, combined by population.

Money that reached townFlood claims are matched to Summerlin South’s own flood-insurance community; household aid to the registrant’s city; repair grants to Summerlin South. 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 Summerlin South total about $14.0M 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.