Natural hazards · Duncan

Duncan, AZ natural hazards

Most of the natural-hazard damage FEMA expects in Duncan comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 34 claims here since 1978. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Duncan?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Duncan to be higher than in 87% of U.S. communities, mostly from inland flooding.

Inland flooding74%Lightning10%Heat waves10%Everything else7%

By hazard

What Duncan faces

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

Inland flooding

74% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about once a year in the area

Lightning

10% of expected damage

Below average · higher than 29% of U.S. places

Heat waves

10% of expected damage

Well above average · higher than 80% of U.S. places

Recorded about 7 times a year in the area

Lower here

HurricanesTornadoesHailWinter weatherCold wavesWildfireEarthquakesLandslidesStrong windDroughtAvalanches

Not a risk here

Coastal floodingIce stormsTsunamisVolcanic 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 Duncan flood?

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

34paid claims since 1978

$479Kpaid to owners

1homes flooded more than once

19782026

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Greenlee County.

Disasters that hit Duncan

2 federal disasters brought FEMA money here

Disasters the President declared that paid out in Duncan itself: aid to households, or repair grants to the Town of Duncan.

Brought FEMA money into DuncanDeclared for Greenlee County only

2006

Severe Storms and Flooding

$59K to the Town of Duncan for repairs

2005

Severe Storms and Flooding

$18K to the Town of Duncan for repairs

Greenlee County has had 10 natural disasters declared since 1953, most often floods 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. Duncan 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 Duncan’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Duncan. 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.