Across San Joaquin County, wildfire risk scores run from 10.8 in Lincoln Village to 70.9 near Tracy. The middle scored level is 18.9.
We scored 178 points across San Joaquin County on the same 0–100 scale a Satelife address report uses, and they do not land in one place. 8% of them come out High, while 80% are Low. Which end your own parcel sits at is not something a county map can tell you.
FEMA NRI also rates San Joaquin County: all-hazards risk Relatively High · social vulnerability Relatively Low · community resilience Relatively Moderate · annualised wildfire frequency 0.0032.
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 San Joaquin 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
Most scored places fall in the Low tier: 142 points are Low, and 14 are High. No scored points are in Very High.
FEMA’s National Risk Index rates the county’s wildfire risk as “Relatively Moderate” and its expected annual wildfire loss as “Relatively Moderate.” FEMA rates the county’s all-hazards risk as “Relatively High.”
The Corral fire in 2009 is both the largest fire listed here and the most recent large fire, at 12,243 acres.
Since 1984, fire perimeters in the county add up to 39,756 acres, and 4.4% of the county has burned in that period. This record includes 53 perimeters since 1984.
Other named fires in this record include Midway (2006), Tesla (2005, partly in county), and Explosives (2009).
Fire perimeters coloured by decade. Select a perimeter for its name, year and size.
Perimeter sources: NIFC Interagency Fire Perimeter History · largest on record: Corral 2009. Perimeters are simplified for display; acreage is the figure the source records.
Many communities in this county sit in the high teens to low 20s, including Lathrop at 20.2 and Lodi at 18.1.
Some of the higher community levels in this list are Dogtown at 25.9, Lockeford at 23.5, and Peters at 22.8.
Lower community levels include Stockton at 13.4, Morada at 15.1, and Lincoln Village at 15.6.
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.
Fire weather was not measured for San Joaquin County on this page.
For terrain, scores range from 5.0 in Mountain House to 65.0 near Tracy, with a middle value of 20.0.
For vegetation and fuels, scores run from 5.0 near Dogtown to 79.1 near Tracy. The middle value is 40.0.
Fire weather was not measured at the sampled points in San Joaquin County. The other four indicators on this page were, and the bars below show what they found.
Wildfire risk is not even across San Joaquin County. The highest scored point is near Tracy at 70.9, while the lowest is in Lincoln Village at 10.8.
Among the listed communities, Dogtown is on the higher side at 25.9, while Stockton and Taft Mosswood are lower at 13.4.
City-level differences show up too: Tracy is 23.4, while Manteca is 17.6.
Each bar is what one part of the score covers across San Joaquin 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.
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.
| Layer | Min | Median | Max | Lowest place | Highest place | Points |
|---|---|---|---|---|---|---|
| Terrain | 5 | 20 | 65 | Mountain House | near Tracy | 178 |
| Vegetation & fuels | 5 | 40 | 79.1 | near Dogtown | near Tracy | 178 |
| Hazard zone | 10 | 10 | 90 | near Tracy | near Tracy | 178 |
| Fire history | 5 | 5 | 95 | near Tracy | Linden | 178 |
| Composite | 10.8 | 18.9 | 70.9 | Lincoln Village | Tracy | 178 |
Independently of Satelife's layers, the USFS Wildfire Risk to Communities grid puts the county's mean annual burn probability at 0.48% (90th percentile cell: 1.44%), with a mean conditional flame length of 2.47 ft. 70% of the 27,868 grid cells inside the county carry burnable fuel at all.
Source: USFS Wildfire Risk to Communities v2.0 (ImageServer, county extent).
178 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.
Hazard-zone scores are low in the middle at 10.0, but they reach 90.0 near Tracy.
Fire-history scores are also low in the middle at 5.0, but they rise to 95.0 around Linden.
In the U.S. Forest Service Wildfire Risk to Communities model, mean annual burn probability is 0.48%, and the 90th-percentile cell value is 1.44%. The same model shows 69.7% of the county in areas that can burn.
That model’s mean conditional flame length is 2.47 feet.
Find out where your San Joaquin 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
Every one of the 50 ZIP areas that touch San Joaquin 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.
High 1 ZIP
Moderate 3 ZIPs
Low 27 ZIPs
No sampled point inside 19 ZIPs
94505 Mountain House · 94513 Mountain House · 94550 Tracy · 95202 Stockton · 95211 Stockton · 95252 Peters · 95253 Victor · 95356 Escalon · 95358 Ripon · 95361 Escalon · 95363 · 95367 Escalon · 95368 Ripon · 95385 Ripon · 95387 Ripon · 95640 Dogtown · 95641 Terminous · 95690 Thornton · 95757 Thornton
Grouped from 31 of 50 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.
Low is the most common tier among scored places in the county. There are 142 Low points, and no points in Very High.
Both are the Corral fire (2009), which is listed at 12,243 acres.
4.4% of San Joaquin County has burned since 1984, totaling 39,756 acres in the record shown here.
No. Fire weather was not measured for this county on this page. The page does include terrain, vegetation and fuels, hazard-zone, fire-history, and burn-probability information.
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 →