ZIP 29403 recorded 217 fire and hazmat incidents in 2025, 1,389 across 2021–2025. Primary county: Charleston County, SC. FEMA NRI rates wildfire risk here as Very High.
1,389 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 259 | |
| 2022 | 306 | |
| 2023 | 305 | |
| 2024 | 302 | |
| 2025 | 217 |
Apr peaks. Sep dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 29403 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Gas leak (natural gas or LPG) | 339 | 24.4% | |
| 2 | Power line down | 184 | 13.2% | |
| 3 | Building fires | 182 | 13.1% | |
| 4 | Outside rubbish, trash or waste fire | 143 | 10.3% | |
| 5 | Arcing, shorted electrical equipment | 92 | 6.6% |
For the 28 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 29403 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 79 | 24.1% | |
| 2 | Cooking area, kitchen | 47 | 14.3% | |
| 3 | Engine area, running gear, wheel area | 28 | 8.5% | |
| 4 | Outside area, other | 17 | 5.2% | |
| 5 | Open area - outside; included are farmland, field | 15 | 4.6% | |
| 6 | Highway, parking lot, street: on or near | 13 | 4.0% | |
| 7 | Exterior balcony, unenclosed porch | 10 | 3.0% | |
| 8 | Courtyard, patio, porch, terrace | 9 | 2.7% | |
| 9 | All other areas | 110 | 33.5% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 156 | 47.6% | |
| 2 | Heat from powered equipment, other | 36 | 11.0% | |
| 3 | Heat source: other | 21 | 6.4% | |
| 4 | Arcing | 20 | 6.1% | |
| 5 | Radiated, conducted heat from operating equipment | 11 | 3.4% | |
| 6 | Spark, ember or flame from operating equipment | 9 | 2.7% | |
| 7 | Hot or smoldering object, other | 9 | 2.7% | |
| 8 | Heat from other open flame or smoking materials | 9 | 2.7% | |
| 9 | All other sources | 57 | 17.4% |
Largest single-incident losses in ZIP 29403 across 2021–2025. These 8 fires alone account for 404% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $1,000,000 | Building fires | 2024 | Major |
| 2 | $650,000 | Building fires | 2023 | Major |
| 3 | $650,000 | Building fires | 2023 | Major |
| 4 | $539,300 | Building fires | 2022 | Major |
| 5 | $341,970 | Building fires | 2022 | Major |
| 6 | $300,000 | Building fires | 2022 | Major |
| 7 | $275,000 | Building fires | 2023 | Major |
| 8 | $250,000 | Building fires | 2025 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 29403.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Charleston | 1,388 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Berkeley County | SC | 0.50 | FIPS 45015 |
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 — 1,389 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.