ZIP 83431 recorded 20 fire and hazmat incidents in 2025, 62 across 2021–2025. Primary county: Jefferson County, ID. FEMA NRI rates wildfire risk here as High.
62 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 4 | |
| 2022 | 14 | |
| 2023 | 8 | |
| 2024 | 16 | |
| 2025 | 20 |
Apr peaks. Jan dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 83431 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 8 | 12.9% | |
| 2 | Power line down | 7 | 11.3% | |
| 3 | Building fires | 6 | 9.7% | |
| 4 | Outside rubbish, trash or waste fire | 6 | 9.7% | |
| 5 | Fire, other | 4 | 6.5% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 83431 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Outside area, other | 13 | 46.4% | |
| 2 | Undetermined | 4 | 14.3% | |
| 3 | Other | 1 | 3.6% | |
| 4 | Egress/exit, other | 1 | 3.6% | |
| 5 | Bedroom - < 5 persons; included are jail or prison | 1 | 3.6% | |
| 6 | Cooking area, kitchen | 1 | 3.6% | |
| 7 | Storage: supplies or tools; dead storage | 1 | 3.6% | |
| 8 | Duct: hvac, cable, exhaust, heating, or AC | 1 | 3.6% | |
| 9 | All other areas | 5 | 17.9% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 9 | 32.1% | |
| 2 | Heat source: other | 5 | 17.9% | |
| 3 | Hot or smoldering object, other | 3 | 10.7% | |
| 4 | Heat from other open flame or smoking materials | 3 | 10.7% | |
| 5 | Multiple heat sources including multiple ignitions | 2 | 7.1% | |
| 6 | Heat, spark from friction | 1 | 3.6% | |
| 7 | Hot ember or ash | 1 | 3.6% | |
| 8 | Match | 1 | 3.6% | |
| 9 | All other sources | 3 | 10.7% |
Largest single-incident losses in ZIP 83431 across 2021–2025. These 8 fires alone account for 392% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $20,000 | Building fires | 2022 | Significant |
| 2 | $4,000 | Cooking fire, confined to container | 2023 | Significant |
| 3 | $4,000 | Off-road vehicle or heavy equipment fire | 2025 | Significant |
| 4 | $4,000 | Building fires | 2025 | Significant |
| 5 | $2,000 | Building fires | 2022 | Significant |
| 6 | $500 | Building fires | 2022 | Significant |
| 7 | $500 | Building fires | 2025 | Significant |
| 8 | $500 | Outside rubbish, trash or waste fire | 2025 | Significant |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 62 incidents in this ZIP across 2021–2025. Building-fire breakdowns (Area of Origin, Heat Source, ignition cause) only count fires investigators classified beyond the basic incident report. Because NFIRS reporting is voluntary, totals are a strong indicator rather than a complete census.