--- title: "Wildfire Risk in Trinity County, CA 2026 | Satelife" description: "Wildfire risk in Trinity County spans a wide range, from 46.1 in the lowest-scored places to 85.2 in the highest, with a county median of 72.2. For a homeowner or buyer, that means risk can shift a lot from one area to another." image: "https://satelife.ai/images/wildfire-risk/trinity-county/generated/trinity-county-locator.webp" canonical: "https://satelife.ai/wildfire-risk/california/trinity-county/" --- [Home](/)›[Wildfire Risk](/wildfire-risk/)›[California](/wildfire-risk/california/)›Trinity County Trinity County, California # Wildfire risk in Trinity County: _where it is highest_, and why Wildfire risk in Trinity County spans a wide range, from 46.1 in the lowest-scored places to 85.2 in the highest, with a county median of 72.2. For a homeowner or buyer, that means risk can shift a lot from one area to another. [Score my Trinity County address →](#score-my-address) [How risky is this county? ↓](#risk-at-a-glance) Before 20002000s2010s2020sCommunity Trinity 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 Trinity County scores _High_ or worse We scored 155 points across Trinity County on the same 0–100 scale a Satelife address report uses, and they do not land in one place. 40% of them come out Very High, while 2% are Moderate. Which end your own parcel sits at is not something a county map can tell you. 40% 58% **Very High** 40% · 62 of 155 points **High** 58% · 90 of 155 points **Moderate** 2% · 3 of 155 points Safest end we measured 46.1 near Ruth · Moderate Middle of the county 72.2 High — half of Trinity County is above this Most exposed end we measured 85.2 near Weaverville · Very High ### And the federal models agree it is a fire county Relatively High FEMA National Risk Index — wildfire risk rating · index score 98.5 / 100 $13.0M / yr FEMA NRI — expected annual loss from wildfire · rated Relatively High 2.02% USFS Wildfire Risk to Communities — mean annual burn probability · 90th-percentile cell 5.37% 6.66 ft USFS WRC — mean conditional flame length · 99% of the county carries burnable fuel FEMA NRI also rates Trinity County: all-hazards risk Relatively Low · social vulnerability Very High · community resilience Relatively Low · annualised wildfire frequency 0.0257. 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 Trinity 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 _Trinity County_ Most scored locations fall in the High tier: 90 points were High, 62 were Very High, and 3 were Moderate. There were no Low-tier points in the places we scored. FEMA’s National Risk Index rates Trinity County’s wildfire risk as “Relatively High,” and its expected annual wildfire loss as “Relatively High.” Fire record ## Where the fires _actually were_ Since 1984, 1,493,382 acres have burned in Trinity County, which is 73.2% of the county. There have been 265 recorded fire perimeters since 1984. The largest fire listed is Hopkins (2020), at 328,363 acres. The most recent large fire is Deep (2023). ![Monument Fire (2021) in Trinity County, California - A heavy lift helicopter lifts off after filling its tank with water on 8-17-21.](/images/wildfire-risk/trinity-county/photos/2021-08-18-monument-fire-cdt-5.webp) **Monument Fire, 2021** — Trinity County. Photo: Credit: USFS, via Public Information Officer, Shasta-Trinity National Forest, U.S. Forest Service, 3644 Avtech Parkway Redding, CA 96002 · [Public domain](https://commons.wikimedia.org/wiki/File:2021_08_18.Monument_Fire-CDT-5.jpg) 265 mapped fire perimeters centred in the county since 1984 1,493,382 acres inside those perimeters since 1984 73.2% of the county's area, as a share of 8,261.3 km² Deep 2023 most recent large fire on record Before 20002000s2010s2020s Fire perimeters coloured by decade. Select a perimeter for its name, year and size. Named fires on record - **Hopkins Fire**2020328,363 acres - **Monument Fire**2021223,172 acres - **Red Fire**2020143,887 acres - **Haypress (River Complex) Fire**2021193,402 acres in totalcrossed into the county - **Doe Fire**2020589,835 acres in totalcrossed into the county - **Happy Fire**201568,095 acres - **Bake-Oven Fire**200665,050 acres - **Campbell Fire**202230,133 acres Perimeter sources: NIFC Interagency Fire Perimeter History · WFIGS Interagency Perimeters · largest on record: Hopkins 2020. Perimeters are simplified for display; acreage is the figure the source records. Communities ## Where in the county you are _matters most_ Among named communities, Hayfork scores 76.1 and Trinity Village scores 75.4, both toward the higher end of county results. Weaverville is lower at 71.5, but still in a high-risk part of the county range. Lewiston is 68.4, and Ruth is 60.9, making Ruth the lowest-scored named community in this set. These differences are why neighborhood-level lookups matter inside Trinity County. Hayfork village · 2,368 people 76.1 _Very High_ Trinity Village village · 297 people 75.4 _Very High_ Weaverville town · 3,600 people 71.5 _High_ Lewiston village · 1,481 people 68.4 _High_ Ruth village · 195 people 60.9 _High_ 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 Trinity County in the places we scored. What was measured shows terrain pressure in many locations: terrain runs from 40 near Ruth to 65 in Ruth. Vegetation and fuels range from 20 in Weaverville to 80 in unincorporated Trinity County, with a median of 71.2. 65 median terrain score (max 65 near Ruth) 71.2 median vegetation & fuels score (max 80 near unincorporated Trinity County) Fire weather ## Fire weather across _Trinity County_ Fire weather was not measured at the sampled points in Trinity 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 inside Trinity County. The lowest scored place is Ruth at 46.1, while the highest scored place is near Weaverville at 85.2. Hazard-zone scores also vary sharply, from 24 in Ruth up to 97.6 near Hayfork, with a median of 85.8. Fire-history scores are high in many places: 5 in Weaverville at the low end, 95 near Ruth at the high end, and a median of 90. Each bar is what one part of the score covers across Trinity 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 40–65 highest near Ruth Vegetation & fuels 20–80 highest near unincorporated Trinity County Hazard zone 24–97.6 highest near Hayfork Fire history 5–95 highest near Ruth Overall score 46.1–85.2 highest near Weaverville 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 40 65 65 near Ruth Ruth 155 Vegetation & fuels 20 71.2 80 Weaverville unincorporated Trinity County 155 Hazard zone 24 85.8 97.6 Ruth near Hayfork 155 Fire history 5 90 95 Weaverville near Ruth 155 Composite 46.1 72.2 85.2 Ruth near Weaverville 155 Independently of Satelife's layers, the USFS Wildfire Risk to Communities grid puts the county's mean annual burn probability at **2.02%** (90th percentile cell: **5.37%**), with a mean conditional flame length of **6.66 ft**. **99%** of the 21,624 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 **111** of the 155 sampled points — the zones cover Local Responsibility Areas, and most of this county is state or federal land. At **111** of them the USFS grid above supplied the hazard reading instead. 155 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_ For modeled burn likelihood, the USFS Wildfire Risk to Communities product shows a mean annual burn probability of 2.02%, and 5.37% at the 90th-percentile cell. It also indicates 99% of Trinity County can burn. That same USFS product reports a mean conditional flame length of 6.66 feet, which contributes to property-level exposure where fuels and terrain are already elevated. For county-wide context, FEMA’s National Risk Index rates Trinity County’s wildfire risk as “Relatively High,” while FEMA rates overall all-hazards risk as “Relatively Low.” FEMA also rates social vulnerability as “Very High” and community resilience as “Relatively Low.” Across 155 sampled points in Trinity County, the score runs from 46.1 to 85.2 — 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 Trinity 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 Trinity County Every one of the 30 ZIP areas that touch Trinity 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** 8 ZIPs - [95563 Trinity Village81](/wildfire-risk/zip/95563/) - [96076 Hayfork79](/wildfire-risk/zip/96076/) - [96048 Weaverville79](/wildfire-risk/zip/96048/) - [96010 Trinity Village78](/wildfire-risk/zip/96010/) - [96046 Hayfork77](/wildfire-risk/zip/96046/) - [96041 Hayfork77](/wildfire-risk/zip/96041/) - [95552 Ruth76](/wildfire-risk/zip/95552/) - [96093 Weaverville75](/wildfire-risk/zip/96093/) **High** 6 ZIPs - [95527 Trinity Village73](/wildfire-risk/zip/95527/) - [95526 Ruth72](/wildfire-risk/zip/95526/) - [96024 Lewiston70](/wildfire-risk/zip/96024/) - [96091 Weaverville69](/wildfire-risk/zip/96091/) - [95595 Ruth65](/wildfire-risk/zip/95595/) - [96052 Lewiston65](/wildfire-risk/zip/96052/) **No sampled point inside** 16 ZIPs [95428](/wildfire-risk/zip/95428/) · [95454](/wildfire-risk/zip/95454/) · [95511 Ruth](/wildfire-risk/zip/95511/) · [95542](/wildfire-risk/zip/95542/) · [95573 Trinity Village](/wildfire-risk/zip/95573/) · [96014](/wildfire-risk/zip/96014/) · [96017](/wildfire-risk/zip/96017/) · [96025](/wildfire-risk/zip/96025/) · [96027](/wildfire-risk/zip/96027/) · [96031](/wildfire-risk/zip/96031/) · [96033 Lewiston](/wildfire-risk/zip/96033/) · [96034](/wildfire-risk/zip/96034/) · [96047 Lewiston](/wildfire-risk/zip/96047/) · [96051](/wildfire-risk/zip/96051/) · [96087 Lewiston](/wildfire-risk/zip/96087/) · [96094](/wildfire-risk/zip/96094/) Grouped from 14 of 30 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 ## Trinity County wildfire risk _in context_ [California wildfire risk The statewide picture and every county page we publish](/wildfire-risk/california/) [Wildfire risk by state Every state and county we cover](/wildfire-risk/) [How Satelife calculates wildfire risk Data sources, layers, score composition, honest limits](/wildfire-risk/methodology/) [Create a wildfire evacuation plan Zones, egress routes, refuge areas](/wildfire-evacuation-plan/) [Run a report for a Trinity County address PDF + score + mitigation plan](/#cta) FAQ ## Frequently asked questions about _Trinity County wildfire risk_ What wildfire tier is most common in Trinity County? High is the most common tier in the scored locations, with 90 points in High. Very High is also common, with 62 points. How much of Trinity County has burned since 1984? 73.2% of the county has burned since 1984, totaling 1,493,382 acres. What are the largest and most recent large fires I should know by name? The largest fire listed is Hopkins (2020), at 328,363 acres. The most recent large fire is Deep (2023). Was fire weather measured for Trinity County here? No. Fire weather was not measured at all in the places we scored for Trinity County. The county results here do include terrain, vegetation and fuels, hazard-zone, and fire-history risk patterns. This page is generated from a Trinity County data pack assembled on 2026-08-18 (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 →](/#cta) [![PRR](/images/prr.png)](/ficha-de-website-voucher-satelife.pdf) © 2024–2026 Satelife, Lda. All rights reserved. Satelife reports are for informational purposes only and do not constitute insurance, financial, or legal advice.