ZIP 63021 recorded 249 fire and hazmat incidents in 2025, 1,061 across 2021–2025. Primary county: St. Louis County, MO. FEMA NRI rates wildfire risk here as High.
1,061 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 196 | |
| 2022 | 122 | |
| 2023 | 222 | |
| 2024 | 272 | |
| 2025 | 249 |
Jul peaks. Nov dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 63021 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 294 | 27.7% | |
| 2 | Building fires | 131 | 12.3% | |
| 3 | Power line down | 103 | 9.7% | |
| 4 | Electrical wiring/equipment problem, other | 83 | 7.8% | |
| 5 | Carbon monoxide incident | 75 | 7.1% |
For the 34 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 63021 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Cooking area, kitchen | 14 | 12.3% | |
| 2 | Outside area, other | 13 | 11.4% | |
| 3 | Undetermined | 10 | 8.8% | |
| 4 | Engine area, running gear, wheel area | 9 | 7.9% | |
| 5 | Open area - outside; included are farmland, field | 7 | 6.1% | |
| 6 | Exterior balcony, unenclosed porch | 6 | 5.3% | |
| 7 | Courtyard, patio, porch, terrace | 6 | 5.3% | |
| 8 | Vehicle storage area; garage, carport | 5 | 4.4% | |
| 9 | All other areas | 44 | 38.6% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 48 | 42.1% | |
| 2 | Heat from powered equipment, other | 9 | 7.9% | |
| 3 | Hot or smoldering object, other | 9 | 7.9% | |
| 4 | Hot ember or ash | 7 | 6.1% | |
| 5 | Spark, ember or flame from operating equipment | 6 | 5.3% | |
| 6 | Arcing | 6 | 5.3% | |
| 7 | Heat source: other | 4 | 3.5% | |
| 8 | Cigarette lighter | 4 | 3.5% | |
| 9 | All other sources | 21 | 18.4% |
Largest single-incident losses in ZIP 63021 across 2021–2025. These 8 fires alone account for 131% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,388,800 | Building fires | 2025 | Major |
| 2 | $259,100 | Building fires | 2024 | Major |
| 3 | $259,100 | Building fires | 2024 | Major |
| 4 | $250,000 | Building fires | 2025 | Major |
| 5 | $200,000 | Building fires | 2025 | Significant |
| 6 | $200,000 | Fire, other | 2025 | Significant |
| 7 | $150,000 | Building fires | 2021 | Significant |
| 8 | $100,000 | Building fires | 2021 | Significant |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 63021.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Ballwin | 389 | |
| 2 | Ellisville | 77 | |
| 3 | Manchester | 59 | |
| 4 | Twin Oaks | 18 | |
| 5 | Wildwood | 14 |
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 — 1,061 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.