ZIP 46377 is served primarily by Lake County, IN — including Hammond. ZIP-level data is sparse — showing the Lake County aggregate. FEMA NRI rates wildfire risk here as High.
Jul peaks. Sep dips. ZIP-level seasonality is sparse — this is the county aggregate.
Top 5 NFIRS incident types — county-level breakdown.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Building fires | 473 | 17.3% | |
| 2 | Gas leak (natural gas or LPG) | 453 | 16.5% | |
| 3 | Carbon monoxide incident | 269 | 9.8% | |
| 4 | Power line down | 239 | 8.7% | |
| 5 | Outside rubbish, trash or waste fire | 122 | 4.5% |
20 cities sit in Lake County. Click for the per-city NFIRS profile.
| # | City | Population | 2025 incidents | Building fires | Grade |
|---|---|---|---|---|---|
| 1 | Hammond | 77,390 | 1 | 0 | A |
| 2 | Gary | 69,136 | 852 | 119 | C+ |
| 3 | Merrillville | 36,214 | 297 | 62 | A- |
| 4 | Crown Point | 33,735 | 314 | 37 | B |
| 5 | Schererville | 29,573 | 146 | 20 | A |
| 6 | Hobart | 29,573 | 26 | 10 | A |
| 7 | East Chicago | 26,363 | 177 | 7 | A- |
| 8 | Highland | 23,794 | 122 | 16 | B+ |
| 9 | Munster | 23,731 | 165 | 36 | A- |
| 10 | St. John | 20,727 | 0 | 0 | — |
| 11 | Dyer | 16,407 | 105 | 17 | A- |
| 12 | Griffith | 16,182 | 154 | 16 | B+ |
| 13 | Cedar Lake | 14,215 | 139 | 43 | B+ |
| 14 | Lake Station | 13,352 | 86 | 7 | A- |
| 15 | Lowell | 10,723 | 54 | 27 | B+ |
| 16 | Lakes of the Four Seasons | 7,589 | 0 | 0 | — |
| 17 | Winfield | 7,219 | 9 | 4 | A+ |
| 18 | Whiting | 4,574 | 9 | 2 | A- |
| 19 | New Chicago | 2,111 | 23 | 9 | B |
| 20 | Lake Dalecarlia | 1,448 | 3 | 0 | A+ |
The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.
This ZIP doesn't have enough NFIRS coverage on its own (under 10 reported incidents across 2021–2025) to publish ZIP-level statistics, so we're showing the Lake County aggregate above. NFIRS reporting is voluntary and many rural ZIPs roll up to broader county totals. The ZIP-to-county mapping uses SimpleMaps' uscities.zips dataset.