ZIP 48103 recorded 332 fire and hazmat incidents in 2025, 2,118 across 2021–2025. Primary county: Washtenaw County, MI. FEMA NRI rates wildfire risk here as Moderate.
2,118 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 416 | |
| 2022 | 353 | |
| 2023 | 691 | |
| 2024 | 326 | |
| 2025 | 332 |
Feb peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 48103 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 526 | 24.8% | |
| 2 | Electrical wiring/equipment problem, other | 229 | 10.8% | |
| 3 | Gas leak (natural gas or LPG) | 218 | 10.3% | |
| 4 | Building fires | 170 | 8.0% | |
| 5 | Carbon monoxide incident | 154 | 7.3% |
For the 40 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 48103 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 54 | 22.7% | |
| 2 | Cooking area, kitchen | 27 | 11.3% | |
| 3 | Undetermined | 18 | 7.6% | |
| 4 | Outside area, other | 12 | 5.0% | |
| 5 | Cargo/trunk area - all vehicles | 9 | 3.8% | |
| 6 | Exterior balcony, unenclosed porch | 8 | 3.4% | |
| 7 | Wall surface: exterior | 8 | 3.4% | |
| 8 | Courtyard, patio, porch, terrace | 8 | 3.4% | |
| 9 | All other areas | 94 | 39.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 73 | 30.7% | |
| 2 | Radiated, conducted heat from operating equipment | 28 | 11.8% | |
| 3 | Heat from powered equipment, other | 24 | 10.1% | |
| 4 | Arcing | 22 | 9.2% | |
| 5 | Heat source: other | 20 | 8.4% | |
| 6 | Heat from direct flame, convection currents | 12 | 5.0% | |
| 7 | Spark, ember or flame from operating equipment | 11 | 4.6% | |
| 8 | Hot or smoldering object, other | 10 | 4.2% | |
| 9 | All other sources | 38 | 16.0% |
Largest single-incident losses in ZIP 48103 across 2021–2025. These 8 fires alone account for 183% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,300,000 | Building fires | 2024 | Major |
| 2 | $750,000 | Building fires | 2022 | Major |
| 3 | $750,000 | Building fires | 2025 | Major |
| 4 | $600,000 | Building fires | 2023 | Major |
| 5 | $600,000 | Passenger vehicle fire | 2023 | Major |
| 6 | $600,000 | Passenger vehicle fire | 2023 | Major |
| 7 | $600,000 | Passenger vehicle fire | 2023 | Major |
| 8 | $600,000 | Building fires | 2025 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 48103.
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 — 2,118 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.