ZIP 46321 recorded 163 fire and hazmat incidents in 2025, 846 across 2021–2025. Primary county: Lake County, IN. FEMA NRI rates wildfire risk here as High.
846 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 164 | |
| 2022 | 179 | |
| 2023 | 152 | |
| 2024 | 188 | |
| 2025 | 163 |
Jul peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 46321 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 167 | 19.7% | |
| 2 | Building fires | 111 | 13.1% | |
| 3 | Vehicle accident, general cleanup | 100 | 11.8% | |
| 4 | Carbon monoxide incident | 90 | 10.6% | |
| 5 | Power line down | 90 | 10.6% |
For the 35 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 46321 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 18 | 26.9% | |
| 2 | Vehicle storage area; garage, carport | 8 | 11.9% | |
| 3 | Outside area, other | 6 | 9.0% | |
| 4 | Undetermined | 6 | 9.0% | |
| 5 | Cooking area, kitchen | 4 | 6.0% | |
| 6 | Bathroom, checkroom, lavatory, locker room | 2 | 3.0% | |
| 7 | Laundry area, wash house (laundry) | 2 | 3.0% | |
| 8 | Substructure area or space, crawl space | 2 | 3.0% | |
| 9 | All other areas | 19 | 28.4% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 17 | 25.4% | |
| 2 | Arcing | 11 | 16.4% | |
| 3 | Spark, ember or flame from operating equipment | 10 | 14.9% | |
| 4 | Hot or smoldering object, other | 6 | 9.0% | |
| 5 | Radiated, conducted heat from operating equipment | 5 | 7.5% | |
| 6 | Heat from powered equipment, other | 4 | 6.0% | |
| 7 | Heat from other open flame or smoking materials | 3 | 4.5% | |
| 8 | Heat source: other | 2 | 3.0% | |
| 9 | All other sources | 9 | 13.4% |
Largest single-incident losses in ZIP 46321 across 2021–2025. These 8 fires alone account for 264% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $300,000 | Building fires | 2023 | Major |
| 2 | $150,000 | Building fires | 2022 | Significant |
| 3 | $140,000 | Building fires | 2021 | Significant |
| 4 | $140,000 | Building fires | 2025 | Significant |
| 5 | $125,000 | Building fires | 2025 | Significant |
| 6 | $100,000 | Building fires | 2024 | Significant |
| 7 | $100,000 | Building fires | 2025 | Significant |
| 8 | $75,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 46321.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Munster | 842 | |
| 2 | East Chicago | 1 | |
| 3 | Hammond | 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 — 846 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.