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Greenlee County, Arizona

Wildfire risk in Greenlee County: where it is highest, and why

Wildfire risk in Greenlee County spans a wide range from place to place. Among the places we scored, the lowest score was 37.4 in Duncan, and the highest was 82.9 in unincorporated Greenlee County. The middle score was 63.5.

Before 20002000s2010s2020sCommunity
Greenlee County — the largest fires on record, at their perimeter centres, with the county’s main communities. Select a marker for its detail.
At a glance

Half of Greenlee County scores High or worse

We scored 153 points across Greenlee County on the same 0–100 scale a Satelife address report uses, and they do not land in one place. 31% of them come out Very High, while 19% are Moderate. Which end your own parcel sits at is not something a county map can tell you.

Very High 31% · 47 of 153 points High 50% · 77 of 153 points Moderate 19% · 29 of 153 points
Safest end we measured 37.4 near Duncan · Moderate
Middle of the county 63.5 High — half of Greenlee County is above this
Most exposed end we measured 82.9 near unincorporated Greenlee County · Very High

And the federal models agree it is a fire county

Relatively Low FEMA National Risk Index — wildfire risk rating · index score 82.5 / 100
$531k / yr FEMA NRI — expected annual loss from wildfire · rated Relatively Low
0.92% USFS Wildfire Risk to Communities — mean annual burn probability · 90th-percentile cell 2.63%
8.33 ft USFS WRC — mean conditional flame length · 100% of the county carries burnable fuel

FEMA NRI also rates Greenlee County: all-hazards risk Very Low · social vulnerability Relatively Low · community resilience Relatively Low · annualised wildfire frequency 0.0033.

Sources: FEMA National Risk Index 1.20.0 (Dec 2025), county record · USFS Wildfire Risk to Communities v2.0, mean of the grid cells inside the county. Both describe the county as a whole, never an address in it.

What does your Greenlee County address score?

A county range shows the spread. Your parcel sits somewhere inside it — the report says where, and what to do about it.

Free to request · PDF report with a 0–100 score, the drivers behind it, and a mitigation plan

Local context

What the data says about Greenlee County

Most scored places fell into the High tier, with 77 points in High and 47 in Very High. No scored points fell into Low.

For county-wide context, FEMA’s National Risk Index rates Greenlee County’s wildfire risk as “Relatively Low.” FEMA also rates the county’s all-hazards risk as “Very Low.”

Fire record

Where the fires actually were

Since 1984, 231,752 acres have burned within the county, and that equals 19.7% of Greenlee County. The county has had 225 fire perimeters in that period.

The largest fire named for this county in these records is Cow Canyon (2020), at 30,483 acres. The most recent large fire is Foote (2024).

The Wallow Fire (2011) burned 538,052 acres overall and was partly in Greenlee County.

The Rattlesnake Fire (2018) burned 26,068 acres and was also partly in Greenlee County.

Wallow Fire (2011) in Greenlee County, Arizona - This image shows areas that were completely burned, side-by-side with areas that were moderately or lightly burned or not touched
Wallow Fire, 2011 — Greenlee County. Photo: Jesse Allen · Public domain
Bringham Fire (2020) in Greenlee County, Arizona - The Payette National Forest Price Valley Rappellers Crew on the Bringham Fire and the Pinal Fire in Arizona, July 2020. This photo
Bringham Fire, 2020 — Greenlee County. Photo: Intermountain Forest Service, USDA Region 4 Photography · Public domain
225 mapped fire perimeters centred in the county since 1984
231,752 acres inside those perimeters since 1984
19.7% of the county's area, as a share of 4,758.9 km²
Foote 2024 most recent large fire on record
Named fires on record
  • Wallow Fire2011538,052 acres in totalcrossed into the county
  • Cow Canyon Fire202030,483 acres
  • Bringham Fire202022,320 acres
  • Rattlesnake Fire201826,068 acres in totalcrossed into the county
  • Horton Fire202112,263 acres
  • Chitty Fire200715,049 acres
  • Kp Fire200416,092 acres
  • Hot Air Fire20089,708 acres

Perimeter sources: NIFC Interagency Fire Perimeter History · WFIGS Interagency Perimeters · largest on record: Cow Canyon 2020. Perimeters are simplified for display; acreage is the figure the source records.

Communities

Where in the county you are matters most

Morenci and Clifton are very similar in the scores shown here, at 54.8 and 54.7.

Duncan is lower at 45.0, compared with the county’s middle score of 63.5.

Population figures listed here are 2,321 for Clifton and 732 for Duncan.

Morenci town
54.8 High
Clifton village · 2,321 people
54.7 High
Duncan village · 732 people
45 Moderate

The score is the median of the sampled points nearest that community — a community-scale indicator, not a score for any individual property in it. Population comes from the community's own record where the source carries one.

Terrain & fuels

Terrain, vegetation and fuels

Fire weather was not measured at all for Greenlee County on this page.

Terrain scores are in a tighter band than some other factors, from 55.0 near Duncan to 65.0 in Duncan.

Vegetation and fuels vary more: Morenci is at 20.0, while near Duncan reaches 80.0. The middle value is 72.6, which is associated with higher wildfire risk in many parts of the county.

55 median terrain score (max 65 near Duncan)
72.6 median vegetation & fuels score (max 80 near Duncan)
Fire weather

Fire weather across Greenlee County

Fire weather was not measured at the sampled points in Greenlee County. The other four indicators on this page were, and the bars below show what they found.

What drives it

Which part of the risk moves, and which doesn't

Risk is not uniform across Greenlee County. The highest scored location, 82.9, is in unincorporated Greenlee County, while Duncan is at the low end at 37.4.

Hazard-zone scores also vary sharply by location: the highest scored place is unincorporated Greenlee County at 94.3, while Clifton is at 10.0. The middle value is 75.7.

Fire-history scores range from 5.0 near Duncan to 95.0 near Clifton, with a middle value of 50.0. That spread shows how different local burn footprints are within the county.

Each bar is what one part of the score covers across Greenlee County, on the same 0–100 scale. A long bar is a part of the risk that depends on where you are; a short one is the same almost everywhere.

Terrain
55–65 highest near Duncan
Vegetation & fuels
20–80 highest near Duncan
Hazard zone
10–94.3 highest near unincorporated Greenlee County
Fire history
5–95 highest near Clifton
Overall score
37.4–82.9 highest near unincorporated Greenlee County

The tick on each bar is the middle value. Tier boundaries — Moderate at 25, High at 50, Very High at 75 — are the faint lines behind them.

Show every number behind these bars
Layer Min Median Max Lowest place Highest place Points
Terrain 55 55 65 near Duncan Duncan 152
Vegetation & fuels 20 72.6 80 Morenci near Duncan 153
Hazard zone 10 75.7 94.3 Clifton unincorporated Greenlee County 153
Fire history 5 50 95 near Duncan near Clifton 153
Composite 37.4 63.5 82.9 Duncan unincorporated Greenlee County 153

Independently of Satelife's layers, the USFS Wildfire Risk to Communities grid puts the county's mean annual burn probability at 0.92% (90th percentile cell: 2.63%), with a mean conditional flame length of 8.33 ft. 100% of the 30,529 grid cells inside the county carry burnable fuel at all.

Source: USFS Wildfire Risk to Communities v2.0 (ImageServer, county extent).

CAL FIRE has no mapped Fire Hazard Severity Zone at 153 of the 153 sampled points — the zones cover Local Responsibility Areas, and most of this county is state or federal land. At 152 of them the USFS grid above supplied the hazard reading instead; at the remaining 1 the hazard weight is renormalised away rather than scored as low.

153 sample points on a ~2.3 km grid, plus one at the centre of each community, weighted with the Satelife county profile v1 · median layer coverage 90%. Scores are 0–100 and comparable within the county, not across states.

For a property

What a county range means for one address

A separate national model from the U.S. Forest Service estimates mean annual burn probability at 0.92% for the county, with a 90th-percentile cell value of 2.63%.

That same model indicates that 99.8% of the county can burn, and it gives a mean conditional flame length of 8.33 feet.

For a specific home, local score differences still matter a lot, even within the same town or ZIP area. County-wide ratings and model outputs are useful context, but they are not a street-by-street guarantee.

Across 153 sampled points in Greenlee County, the score runs from 37.4 to 82.9 — two neighbouring parcels can sit in different tiers. A county number is the middle of that spread; it says nothing about which end yours is at.

Find out where your Greenlee County parcel sits

Slope, the fuel touching the structure, the road out, the fire history within a mile — measured at your address, not averaged across the county.

Free to request · PDF report with a 0–100 score, the drivers behind it, and a mitigation plan

Coverage

ZIP codes we cover in Greenlee County

Every one of the 11 ZIP areas that touch Greenlee County — we run address-level reports in all of them. They are grouped by the median score of the points we sampled inside each, which is a neighbourhood-scale indicator and not a score for any property: two homes in the same ZIP routinely land in different tiers.

Very High 1 ZIP

Moderate 1 ZIP

No sampled point inside 7 ZIPs

85546 · 85632 · 85920 · 87830 · 88039 · 88045 · 88051 Clifton

Grouped from 4 of 11 ZIP areas — the rest had no sample point fall inside them. The community shown is the nearest mapped place to the ZIP's centre.

ZIP areas are Census 2020 ZIP Code Tabulation Areas intersecting the county boundary.

Where to go next

Greenlee County wildfire risk in context

FAQ

Frequently asked questions about Greenlee County wildfire risk

Has a lot of Greenlee County burned in recent decades?

Yes. Since 1984, 19.7% of the county has burned, totaling 231,752 acres.

What are the largest and most recent large fires I should know by name?

The largest fire named for this county in these records is Cow Canyon (2020), at 30,483 acres. The most recent large fire is Foote (2024).

Does this page include fire weather for Greenlee County?

No. Fire weather was not measured at all for Greenlee County on this page.

How should I read the FEMA rating versus local wildfire scores?

They describe different things. FEMA’s National Risk Index rates Greenlee County’s wildfire risk as “Relatively Low” at the county level, while local wildfire scores show how risk varies from place to place within the county.

Which towns shown here have higher or lower scores?

Morenci (54.8) and Clifton (54.7) are similar in the values shown here, while Duncan is lower at 45.0.

This page is generated from a Greenlee County data pack assembled on 2026-09-05 (pack v1.0). Scores are sampled across the county, not measured at any individual address, and are informational decision support — not a substitute for official evacuation orders, a fire-agency hazard determination, or an insurer's underwriting judgement. Data versions: fema_nri 1.20.0 (Dec 2025) · landfire per adapter · nifc_history All Years View · wfigs current · wrc v2.0 (2024) · zcta Census 2020.

What does your parcel look like, layer by layer?

A county range shows the spread. An address-level Satelife report shows where in that spread your property actually sits — PDF, per-layer score, and a prioritized mitigation plan.

Start with your address →