ZIP 05446 recorded 67 fire and hazmat incidents in 2025, 779 across 2021–2025. Primary county: Chittenden County, VT.
779 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 169 | |
| 2022 | 203 | |
| 2023 | 203 | |
| 2024 | 137 | |
| 2025 | 67 |
Apr peaks. Aug dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 05446 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Vehicle accident, general cleanup | 99 | 12.7% | |
| 2 | Building fires | 77 | 9.9% | |
| 3 | Gas leak (natural gas or LPG) | 75 | 9.6% | |
| 4 | Cooking fire, confined to container | 66 | 8.5% | |
| 5 | Unauthorized burning | 65 | 8.3% |
For the 4 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 05446 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 30 | 24.6% | |
| 2 | Outside area, other | 19 | 15.6% | |
| 3 | Undetermined | 14 | 11.5% | |
| 4 | Engine area, running gear, wheel area | 9 | 7.4% | |
| 5 | Function area, other | 6 | 4.9% | |
| 6 | Wildland, woods | 5 | 4.1% | |
| 7 | Entrance way, lobby | 4 | 3.3% | |
| 8 | Vehicle area, other | 4 | 3.3% | |
| 9 | All other areas | 31 | 25.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 58 | 47.5% | |
| 2 | Radiated, conducted heat from operating equipment | 11 | 9.0% | |
| 3 | Heat from powered equipment, other | 10 | 8.2% | |
| 4 | Hot or smoldering object, other | 8 | 6.6% | |
| 5 | Heat source: other | 7 | 5.7% | |
| 6 | Arcing | 6 | 4.9% | |
| 7 | Hot ember or ash | 6 | 4.9% | |
| 8 | Cigarette | 3 | 2.5% | |
| 9 | All other sources | 13 | 10.7% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 05446.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Colchester | 774 | |
| 2 | Milton | 3 | |
| 3 | Winooski | 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 — 779 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.