Natural hazards · Four Square Mile

Four Square Mile, CO natural hazards

Most of the natural-hazard damage FEMA expects in Four Square Mile 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 Four Square Mile?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Four Square Mile to be higher than in 52% of U.S. communities, mostly from inland flooding and hail.

Inland flooding38%Hail34%Tornadoes13%Cold waves7%Everything else8%

By hazard

What Four Square Mile faces

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

Inland flooding

38% of expected damage

Below average · higher than 31% of U.S. places

Recorded about once a year in the area

Hail

34% of expected damage

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

Recorded about 8 times a year in the area

Tornadoes

13% of expected damage

Well above average · higher than 87% of U.S. places

Cold waves

7% of expected damage

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

Recorded about once a year in the area

Lower here

Ice stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightningVolcanic activity

Not a risk here

Coastal floodingHurricanesDroughtAvalanchesTsunamis

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 Four Square Mile flood?

FEMA's records show no paid flood insurance claims in Four Square Mile.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Arapahoe County.

Disasters that hit Four Square Mile

Federal disasters declared here

None of the disasters declared for Arapahoe County shows FEMA aid or repair money reaching Four Square Mile itself in FEMA’s records.

Brought FEMA money into Four Square MileDeclared for Arapahoe County only

Arapahoe County has had 9 natural disasters declared since 1953, most often floods and winter storms.

Around Four Square Mile

Four Square Mile and the towns around it

Very lowLowModerateHighVery high

Denvermostly inland floodingHigh

Four Square Milemostly inland floodingModerate

Auroramostly hailModerate

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. Four Square Mile covers 6 census tracts, combined by population.

Money that reached townFlood claims are matched to Four Square Mile’s own flood-insurance community; household aid to the registrant’s city; repair grants to Four Square Mile. 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 Four Square Mile total about $4.4M 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.