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ZIP-level NFIRS data

Fires in ZIP 99504

ZIP 99504 recorded 260 fire and hazmat incidents in 2025, 1,353 across 2021–2025. Primary county: Anchorage Municipality, AK. FEMA NRI rates wildfire risk here as High.

ZIP 99504 FIPS 02020 ZIP-level
Total incidents (2025)
260
1,353 across 5 years
Building fires
20
7 wildland
Wildfire risk
79
FEMA NRI · High
Active fires
0
in Anchorage Municipality
01 Five-year trend

Year over year in ZIP 99504

1,353 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 192
2022 294
2023 317
2024 290
2025 260
02 Seasonality

When do fires happen in ZIP 99504?

Jun peaks. Nov dips. Aggregated across all 5 years inside this ZIP.

Jan 81
Feb 89
Mar 87
Apr 86
May 164
Jun 168
Jul 155
Aug 136
Sep 107
Oct 112
Nov 76
Dec 92
03 Top incident types

What kinds of calls lead in ZIP 99504?

Top 5 NFIRS incident types for ZIP 99504 across 2021–2025.

#Incident typeCountShare 
1 Unauthorized burning 236 17.4%
2 Outside rubbish, trash or waste fire 138 10.2%
3 Building fires 131 9.7%
4 Gas leak (natural gas or LPG) 113 8.4%
5 Carbon monoxide incident 95 7.0%
04 Cause of ignition

What sparks fires in ZIP 99504?

For the 20 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
44%
143
Cause undetermined
22%
72
Intentional / arson
11%
35
Equipment / heat source failure
14%
45
Under investigation
2%
7
Act of nature (lightning)
7%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 99504 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 44 13.5%
2 Undetermined 39 12.0%
3 Cooking area, kitchen 29 8.9%
4 Vehicle storage area; garage, carport 18 5.5%
5 Wall surface: exterior 18 5.5%
6 Bathroom, checkroom, lavatory, locker room 16 4.9%
7 Operator/passenger area of transportation equip. 14 4.3%
8 Exterior balcony, unenclosed porch 12 3.7%
9 All other areas 136 41.7%
06 What ignited it

The leading heat sources here

NFIRS HEAT_SOURC code — the physical thing that started the fire.

#Heat sourceCountShare 
1 Undetermined 136 41.7%
2 Heat from powered equipment, other 27 8.3%
3 Radiated, conducted heat from operating equipment 23 7.1%
4 Heat from direct flame, convection currents 18 5.5%
5 Arcing 16 4.9%
6 Heat from other open flame or smoking materials 16 4.9%
7 Hot or smoldering object, other 12 3.7%
8 Cigarette 10 3.1%
9 All other sources 68 20.9%
07 The biggest fires

8 fires · $2.6M in losses

Largest single-incident losses in ZIP 99504 across 2021–2025. These 8 fires alone account for 336% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $512,325 Building fires 2022 Major
2 $399,140 Building fires 2024 Major
3 $360,791 Building fires 2024 Major
4 $351,019 Building fires 2023 Major
5 $297,243 Building fires 2024 Major
6 $244,208 Building fires 2023 Significant
7 $222,000 Building fires 2023 Significant
8 $217,488 Building fires 2021 Significant
08 Cities in this ZIP

Most active cities in ZIP 99504

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 99504.

#City5-yr incidents 
1 Anchorage 1,353
11 Current conditions

Right now in 99504

The figures above are historical. For today's air quality, fire-weather warnings, and active fires, go to the official sources.

About ZIP-level data

NFIRS reports each fire incident with a 5-digit address ZIP. We aggregate those rows directly to produce ZIP-level totals — 1,353 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.