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Merced County, California

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

Wildfire risk in Merced County varies a lot by location. Across the places we scored, the overall scores run from 17.5 in Los Banos to 71.9 near Gustine, with a middle value of 29.4.

Before 20002000s2010s2020sCommunity
Merced 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 Merced County scores Moderate or worse

We scored 163 points across Merced County on the same 0–100 scale a Satelife address report uses, and they do not land in one place. 20% of them come out High, while 36% are Low. Which end your own parcel sits at is not something a county map can tell you.

High 20% · 33 of 163 points Moderate 44% · 72 of 163 points Low 36% · 58 of 163 points
Safest end we measured 17.5 near Los Banos · Low
Middle of the county 29.4 Moderate — half of Merced County is above this
Most exposed end we measured 71.9 near Gustine · High

And the federal models agree it is a fire county

Relatively Moderate FEMA National Risk Index — wildfire risk rating · index score 92.2 / 100
$1.6M / yr FEMA NRI — expected annual loss from wildfire · rated Relatively Moderate
0.68% USFS Wildfire Risk to Communities — mean annual burn probability · 90th-percentile cell 1.65%
3.22 ft USFS WRC — mean conditional flame length · 83% of the county carries burnable fuel

FEMA NRI also rates Merced County: all-hazards risk Relatively High · social vulnerability Relatively High · community resilience Very Low · annualised wildfire frequency 0.0052.

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 Merced 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 Merced County

Most scored locations fall in the Moderate tier. 72 points are Moderate, and none of the scored points are in the Very High tier.

FEMA’s National Risk Index rates Merced County’s wildfire risk as “Relatively Moderate.” In the same FEMA index, the county’s all-hazards risk is rated “Relatively High.”

Fire record

Where the fires actually were

The largest fire listed here is the Mercy fire in 1996, at 23,526 acres. The most recent large fire is Hwy 59 N/ La Grange Rd in 2026.

Since 1984, fire perimeters in the county add up to 95,243 acres, and 7.6% of the county has burned in that period. There have been 113 fire perimeters since 1984.

Other named fires in this county record include Planada (2018) and Pass (2020), showing that both older and more recent incidents are part of the local fire history.

113 mapped fire perimeters centred in the county since 1984
95,243 acres inside those perimeters since 1984
7.6% of the county's area, as a share of 5,094.9 km²
Hwy 59 N/ La Grange Rd 2026 most recent large fire on record
Named fires on record
  • Mercy Fire199623,526 acres
  • Planada Fire20184,564 acres
  • Pg&E #4 Fire19939,373 acres
  • Mercy Fire19984,958 acres
  • Pass Fire20202,196 acres
  • Old Mill Fire19744,738 acres
  • Merced #7 Fire19514,252 acres
  • Wright Fire20171,730 acres

Perimeter sources: NIFC Interagency Fire Perimeter History · WFIGS Interagency Perimeters · largest on record: Mercy 1996. Perimeters are simplified for display; acreage is the figure the source records.

Communities

Where in the county you are matters most

For larger population centers, the middle scores are fairly close: Los Banos is 25.5, Atwater is 25.4, and Merced is 22.6. That points to generally low-to-moderate differences among the county’s biggest cities and towns.

Smaller communities also span a range. Hilmar is at 26.6, while Dos Palos is at 17.5, with places like Planada at 24.1 and South Dos Palos at 21.8 between those ends.

Hilmar village
26.6 Moderate
Gustine village · 5,520 people
26.1 Moderate
Los Banos town · 35,972 people
25.5 Moderate
Atwater town · 27,152 people
25.4 Moderate
Winton village · 10,613 people
25.3 Moderate
Planada village · 4,584 people
24.1 Low
Dos Palos Y village
23.2 Low
Merced city · 83,316 people
22.6 Low
Delhi village · 10,755 people
22.6 Low
Le Grand village · 1,659 people
22.6 Low
3 more communities in Merced County
Livingston town · 13,058 people
22.5 Low
South Dos Palos village · 1,620 people
21.8 Low
Dos Palos village · 4,919 people
17.5 Low

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

Terrain scores are generally on the lower side in much of the county, with a middle value of 20.0. But terrain reaches 65.0 near Los Banos, so slope-related exposure is higher in some locations.

Vegetation and fuels vary more. That score ranges from 5.0 near Los Banos up to 77.7 near South Dos Palos, with a middle value of 46.0. In practical terms, fuel patterns contribute to bigger place-to-place swings in wildfire risk than terrain alone in this county.

20 median terrain score (max 65 near Los Banos)
46 median vegetation & fuels score (max 77.7 near South Dos Palos)
Fire weather

Fire weather across Merced County

Fire weather was measured across the county, and it is fairly tight compared with some other factors. Scores run from 53.3 near Los Banos to 63.0 near Gustine, with a middle value of 54.9.

A separate USFS Wildfire Risk to Communities model estimates a mean annual burn probability of 0.68%, and a 90th-percentile cell value of 1.65%. It also indicates that 83.1% of the county has some potential to burn.

53.3 lowest fire-weather score — near Los Banos
63 highest fire-weather score — near Gustine
What drives it

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

Risk is not evenly spread across Merced County. The highest overall score appears near Gustine at 71.9, while the lowest is in Los Banos at 17.5.

Among named communities, Hilmar has one of the higher middle scores at 26.6, while Dos Palos is lower at 17.5. Merced sits in between at 22.6, which shows why neighborhood-level differences matter even inside one county.

Each bar is what one part of the score covers across Merced 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
20–65 highest near Los Banos
Vegetation & fuels
5–77.7 highest near South Dos Palos
Hazard zone
10–90 highest near Los Banos
Fire history
5–95 highest near Gustine
Fire weather
53.3–63 highest near Gustine
Overall score
17.5–71.9 highest near Gustine

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 20 20 65 near South Dos Palos near Los Banos 163
Vegetation & fuels 5 46 77.7 near Los Banos near South Dos Palos 163
Hazard zone 10 10 90 near South Dos Palos near Los Banos 163
Fire history 5 5 95 near Los Banos near Gustine 163
Fire weather 53.3 54.9 63 near Los Banos near Gustine 163
Composite 17.5 29.4 71.9 Los Banos near Gustine 163

Independently of Satelife's layers, the USFS Wildfire Risk to Communities grid puts the county's mean annual burn probability at 0.68% (90th percentile cell: 1.65%), with a mean conditional flame length of 3.22 ft. 83% of the 19,479 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 7 of the 163 sampled points — the zones cover Local Responsibility Areas. At 7 of them the USFS grid above supplied the hazard reading instead.

163 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 100%. Scores are 0–100 and comparable within the county, not across states.

For a property

What a county range means for one address

Hazard-zone scores are low in many scored locations, with a middle value of 10.0, but they reach 90.0 near Los Banos. So hazard-zone exposure can be very different from one part of the county to another.

Fire-history scores show a similar pattern: many places are at 5.0, while the high end reaches 95.0 near Gustine. For a specific home, nearby location inside the county is strongly associated with the risk picture.

FEMA’s National Risk Index also rates Merced County’s expected annual loss from wildfire as “Relatively Moderate,” social vulnerability as “Relatively High,” and community resilience as “Very Low.”

Across 163 sampled points in Merced County, the score runs from 17.5 to 71.9 — 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 Merced 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 Merced County

Every one of the 32 ZIP areas that touch Merced 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.

Grouped from 24 of 32 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

Merced County wildfire risk in context

FAQ

Frequently asked questions about Merced County wildfire risk

What does a wildfire risk score mean here?

Scores run from 0 to 100, and higher scores mean higher wildfire exposure at that location.

Is wildfire risk the same everywhere in Merced County?

No. The scored locations range from 17.5 to 71.9, so risk varies substantially by location.

What is the largest fire listed for this county?

The largest listed fire is Mercy (1996), at 23,526 acres.

What is the most recent large fire listed?

The most recent large fire is Hwy 59 N/ La Grange Rd (2026).

How does FEMA rate wildfire risk for the county overall?

FEMA’s National Risk Index rates Merced County’s wildfire risk as “Relatively Moderate.”

This page is generated from a Merced County data pack assembled on 2026-08-19 (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.

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