ZIP 48105 recorded 193 fire and hazmat incidents in 2025, 1,097 across 2021–2025. Primary county: Washtenaw County, MI. FEMA NRI rates wildfire risk here as Moderate.
1,097 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 226 | |
| 2022 | 146 | |
| 2023 | 310 | |
| 2024 | 222 | |
| 2025 | 193 |
Aug peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 48105 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 185 | 16.9% | |
| 2 | Gas leak (natural gas or LPG) | 132 | 12.0% | |
| 3 | Building fires | 78 | 7.1% | |
| 4 | Carbon monoxide incident | 76 | 6.9% | |
| 5 | Cooking fire, confined to container | 72 | 6.6% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 48105 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 49 | 30.1% | |
| 2 | Cooking area, kitchen | 12 | 7.4% | |
| 3 | Highway, parking lot, street: on or near | 11 | 6.7% | |
| 4 | Open area - outside; included are farmland, field | 11 | 6.7% | |
| 5 | Outside area, other | 8 | 4.9% | |
| 6 | Cargo/trunk area - all vehicles | 7 | 4.3% | |
| 7 | Undetermined | 7 | 4.3% | |
| 8 | Wall surface: exterior | 4 | 2.5% | |
| 9 | All other areas | 54 | 33.1% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 57 | 35.0% | |
| 2 | Radiated, conducted heat from operating equipment | 17 | 10.4% | |
| 3 | Arcing | 14 | 8.6% | |
| 4 | Heat, spark from friction | 11 | 6.7% | |
| 5 | Spark, ember or flame from operating equipment | 9 | 5.5% | |
| 6 | Heat source: other | 7 | 4.3% | |
| 7 | Heat spread from another fire, other | 7 | 4.3% | |
| 8 | Heat from powered equipment, other | 6 | 3.7% | |
| 9 | All other sources | 35 | 21.5% |
Largest single-incident losses in ZIP 48105 across 2021–2025. These 8 fires alone account for 150% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $250,000 | Building fires | 2025 | Major |
| 2 | $200,000 | Building fires | 2022 | Significant |
| 3 | $150,000 | Building fires | 2022 | Significant |
| 4 | $100,000 | Building fires | 2022 | Significant |
| 5 | $100,000 | Building fires | 2025 | Significant |
| 6 | $90,000 | Road freight or transport vehicle fire | 2024 | Significant |
| 7 | $75,000 | Building fires | 2023 | Significant |
| 8 | $60,000 | Fires in structures other than in a building | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 48105.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Ann Arbor | 1,092 |
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 — 1,097 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.