ZIP 46410 recorded 313 fire and hazmat incidents in 2025, 1,640 across 2021–2025. Primary county: Lake County, IN. FEMA NRI rates wildfire risk here as High.
1,640 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 288 | |
| 2022 | 343 | |
| 2023 | 378 | |
| 2024 | 318 | |
| 2025 | 313 |
Jul peaks. Feb dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 46410 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 271 | 16.5% | |
| 2 | Gas leak (natural gas or LPG) | 243 | 14.8% | |
| 3 | Carbon monoxide incident | 209 | 12.7% | |
| 4 | Cooking fire, confined to container | 142 | 8.7% | |
| 5 | Power line down | 108 | 6.6% |
For the 75 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 46410 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 50 | 14.7% | |
| 2 | Undetermined | 49 | 14.5% | |
| 3 | Cooking area, kitchen | 32 | 9.4% | |
| 4 | Open area - outside; included are farmland, field | 30 | 8.8% | |
| 5 | Highway, parking lot, street: on or near | 23 | 6.8% | |
| 6 | Bedroom - < 5 persons; included are jail or prison | 13 | 3.8% | |
| 7 | Wall surface: exterior | 13 | 3.8% | |
| 8 | Outside area, other | 13 | 3.8% | |
| 9 | All other areas | 116 | 34.2% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 179 | 52.8% | |
| 2 | Radiated, conducted heat from operating equipment | 30 | 8.8% | |
| 3 | Arcing | 20 | 5.9% | |
| 4 | Hot ember or ash | 14 | 4.1% | |
| 5 | Heat from direct flame, convection currents | 12 | 3.5% | |
| 6 | Flame/torch used for lighting | 10 | 2.9% | |
| 7 | Heat from powered equipment, other | 9 | 2.7% | |
| 8 | Spark, ember or flame from operating equipment | 7 | 2.1% | |
| 9 | All other sources | 58 | 17.1% |
Largest single-incident losses in ZIP 46410 across 2021–2025. These 8 fires alone account for 264% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2024 | Major |
| 2 | $750,000 | Building fires | 2025 | Major |
| 3 | $500,000 | Building fires | 2023 | Major |
| 4 | $350,000 | Building fires | 2023 | Major |
| 5 | $300,000 | Building fires | 2023 | Major |
| 6 | $250,000 | Building fires | 2023 | Major |
| 7 | $250,000 | Building fires | 2024 | Major |
| 8 | $200,000 | Building fires | 2022 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 46410.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Merrillville | 1,609 | |
| 2 | Gary | 22 | |
| 3 | Crown Point | 1 | |
| 4 | Griffith | 1 | |
| 5 | Hobart | 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 — 1,640 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.