In 2025, fire departments serving Los Alamos County responded to 120 fire and hazmat incidents — including a single $5K property loss. FEMA NRI rates wildfire risk here as Very High.
Gas leak (natural gas or LPG) lead by count. Top five categories make up about 63% of all calls.
Jan peaks. Oct dips.
697 incidents from 2021 through 2025.
| Year | Incidents | |
|---|---|---|
| 2021 | 124 | |
| 2022 | 114 | |
| 2023 | 176 | |
| 2024 | 163 | |
| 2025 | 120 |
For the 3 building fires departments responded to in 2025, here's how investigators classified them.
Largest single-incident property losses in Los Alamos County during 2025. These 3 fires alone account for 100% of the county's total.
| # | Property loss | City | Type | Severity |
|---|---|---|---|---|
| 1 | $5,000 | LOS ALAMOS | Fire, other | Significant |
| 2 | $1,000 | White Rock | Building fires | Significant |
| 3 | $1 | LOS ALAMOS | Building fires | Significant |
Per-capita rates let us compare apples to apples.
2 cities mapped to FIPS 35028.
| City | Population | |
|---|---|---|
| Los Alamos | 13,460 | View › |
| White Rock | 5,592 | View › |
1 departments report from this county.
Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).
| # | Name | Year | Agency | Acres |
|---|---|---|---|---|
| 1 | Hermits Peak | 2022 | USFS | 341,734 |
| 2 | Black | 2022 | USFS | 325,135 |
| 3 | Calf Canyon | 2022 | USFS | 299,792 |
| 4 | Las Conchas | 2011 | NPS | 156,989 |
| 5 | Donaldson | 2011 | USFS | 96,129 |
| 6 | Johnson | 2021 | USFS | 94,786 |
| 7 | Miller | 2011 | USFS | 88,880 |
| 8 | Miller | 2011 | NPS | 88,817 |
| 9 | Ponil | 2002 | USFS | 86,557 |
| 10 | Pass | 2023 | USFS | 59,934 |
County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.