ZIP 99503 recorded 303 fire and hazmat incidents in 2025, 1,444 across 2021–2025. Primary county: Anchorage Municipality, AK. FEMA NRI rates wildfire risk here as High.
1,444 incidents from 2021 through 2025 inside this ZIP.
| Year | Incidents | |
|---|---|---|
| 2021 | 210 | |
| 2022 | 324 | |
| 2023 | 271 | |
| 2024 | 336 | |
| 2025 | 303 |
May peaks. Dec dips. Aggregated across all 5 years inside this ZIP.
Top 5 NFIRS incident types for ZIP 99503 across 2021–2025.
| # | Incident type | Count | Share | |
|---|---|---|---|---|
| 1 | Unauthorized burning | 371 | 25.7% | |
| 2 | Outside rubbish, trash or waste fire | 246 | 17.0% | |
| 3 | Dumpster or other outside trash receptacle fire | 114 | 7.9% | |
| 4 | Outside rubbish fire, other | 92 | 6.4% | |
| 5 | Passenger vehicle fire | 80 | 5.5% |
For the 16 building fires reported here in 2025, here's how investigators classified ignition cause.
NFIRS Area of Origin for ZIP 99503 fires across 2021–2025.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 28 | 12.2% | |
| 2 | Operator/passenger area of transportation equip. | 27 | 11.7% | |
| 3 | Engine area, running gear, wheel area | 26 | 11.3% | |
| 4 | Cooking area, kitchen | 17 | 7.4% | |
| 5 | Outside area, other | 15 | 6.5% | |
| 6 | Bathroom, checkroom, lavatory, locker room | 13 | 5.7% | |
| 7 | Bedroom - < 5 persons; included are jail or prison | 11 | 4.8% | |
| 8 | Vehicle area, other | 8 | 3.5% | |
| 9 | All other areas | 85 | 37.0% |
NFIRS HEAT_SOURC code — the physical thing that started the fire.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 123 | 53.5% | |
| 2 | Heat from powered equipment, other | 19 | 8.3% | |
| 3 | Radiated, conducted heat from operating equipment | 12 | 5.2% | |
| 4 | Hot or smoldering object, other | 12 | 5.2% | |
| 5 | Spark, ember or flame from operating equipment | 8 | 3.5% | |
| 6 | Heat from other open flame or smoking materials | 8 | 3.5% | |
| 7 | Cigarette | 8 | 3.5% | |
| 8 | Heat source: other | 6 | 2.6% | |
| 9 | All other sources | 34 | 14.8% |
Largest single-incident losses in ZIP 99503 across 2021–2025. These 8 fires alone account for 277% of the ZIP's 2025 reported total.
| # | Property loss | Type | Year | Severity |
|---|---|---|---|---|
| 1 | $523,196 | Building fires | 2023 | Major |
| 2 | $460,592 | Building fires | 2024 | Major |
| 3 | $422,834 | Building fires | 2022 | Major |
| 4 | $367,054 | Building fires | 2022 | Major |
| 5 | $337,451 | Building fires | 2022 | Major |
| 6 | $277,421 | Building fires | 2022 | Major |
| 7 | $269,961 | Building fires | 2024 | Major |
| 8 | $262,117 | Building fires | 2025 | Major |
Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 99503.
| # | City | 5-yr incidents | |
|---|---|---|---|
| 1 | Anchorage | 1,444 |
Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.
| County | State | Weight | |
|---|---|---|---|
| Yukon-Koyukuk Census Area | AK | 1.00 | FIPS 02290 |
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 — 1,444 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.