ZIP 48637 recorded 6 fire and hazmat incidents in 2025, 136 across 2021–2025. Primary county: Gratiot County, MI.
136 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 46 | |
| 2022 | 25 | |
| 2023 | 29 | |
| 2024 | 30 | |
| 2025 | 6 |
May peaks. Nov dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 48637 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Power line down | 49 | 36.0% | |
| 2 | Building fires | 35 | 25.7% | |
| 3 | Brush, or brush and grass mixture fire | 16 | 11.8% | |
| 4 | Chimney or flue fire, confined to chimney or flue | 5 | 3.7% | |
| 5 | Gas leak (natural gas or LPG) | 4 | 2.9% |
For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 48637 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Open area - outside; included are farmland, field | 6 | 16.2% | |
| 2 | Engine area, running gear, wheel area | 5 | 13.5% | |
| 3 | Outside area, other | 5 | 13.5% | |
| 4 | Common room, den, family room, living room, lounge | 4 | 10.8% | |
| 5 | Vehicle storage area; garage, carport | 4 | 10.8% | |
| 6 | Wildland, woods | 3 | 8.1% | |
| 7 | Other | 2 | 5.4% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 2 | 5.4% | |
| 9 | All other areas | 6 | 16.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Arcing | 8 | 21.6% | |
| 2 | Hot ember or ash | 8 | 21.6% | |
| 3 | Cigarette lighter | 8 | 21.6% | |
| 4 | Undetermined | 6 | 16.2% | |
| 5 | Radiated, conducted heat from operating equipment | 4 | 10.8% | |
| 6 | Hot or smoldering object, other | 2 | 5.4% | |
| 7 | Heat from direct flame, convection currents | 1 | 2.7% |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 48637.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Merrill | 131 | |
| 2 | Breckenridge | 1 | |
| 3 | Elsie | 1 | |
| 4 | Ithaca | 1 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Saginaw County | MI | 1.00 | FIPS 26145 |
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 — 136 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.