ZIP 99320 recorded 205 fire and hazmat incidents in 2025, 1,031 across 2021–2025. Primary county: Benton County, WA. FEMA NRI rates wildfire risk here as Very High.
1,031 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 222 | |
| 2022 | 155 | |
| 2023 | 257 | |
| 2024 | 192 | |
| 2025 | 205 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 99320 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Brush, or brush and grass mixture fire | 301 | 29.2% | |
| 2 | Authorized controlled burning | 159 | 15.4% | |
| 3 | Building fires | 139 | 13.5% | |
| 4 | Unauthorized burning | 109 | 10.6% | |
| 5 | Grass fire | 56 | 5.4% |
For the 22 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 99320 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 31 | 16.1% | |
| 2 | Engine area, running gear, wheel area | 30 | 15.5% | |
| 3 | Open area - outside; included are farmland, field | 25 | 13.0% | |
| 4 | Outside area, other | 21 | 10.9% | |
| 5 | Other | 10 | 5.2% | |
| 6 | Vehicle area, other | 9 | 4.7% | |
| 7 | Cooking area, kitchen | 7 | 3.6% | |
| 8 | Wildland, woods | 7 | 3.6% | |
| 9 | All other areas | 53 | 27.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 84 | 43.5% | |
| 2 | Heat source: other | 16 | 8.3% | |
| 3 | Arcing | 14 | 7.3% | |
| 4 | Hot ember or ash | 14 | 7.3% | |
| 5 | Heat from powered equipment, other | 10 | 5.2% | |
| 6 | Radiated, conducted heat from operating equipment | 10 | 5.2% | |
| 7 | Heat from direct flame, convection currents | 8 | 4.1% | |
| 8 | Spark, ember or flame from operating equipment | 6 | 3.1% | |
| 9 | All other sources | 31 | 16.1% |
Largest single-incident losses in ZIP 99320 across 2021–2025. These 8 fires alone account for 181% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $500,000 | Building fires | 2021 | Major |
| 2 | $500,000 | Mobile property (vehicle) fire, other | 2021 | Major |
| 3 | $500,000 | Building fires | 2025 | Major |
| 4 | $400,000 | Building fires | 2025 | Major |
| 5 | $300,000 | Building fires | 2021 | Major |
| 6 | $250,000 | Building fires | 2024 | Major |
| 7 | $200,000 | Building fires | 2022 | Significant |
| 8 | $180,000 | Building fires | 2025 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 99320.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Benton City | 1,000 | |
| 2 | Pasco | 1 | |
| 3 | Richland | 1 | |
| 4 | West Richland | 1 |
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 — 1,031 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.