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ZIP-level NFIRS data

Fires in ZIP 94538

ZIP 94538 recorded 339 fire and hazmat incidents in 2025, 1,571 across 2021–2025. Primary county: Alameda County, CA. FEMA NRI rates wildfire risk here as Very High.

ZIP 94538 FIPS 06001 ZIP-level
Total incidents (2025)
339
1,571 across 5 years
Building fires
14
52 wildland
Wildfire risk
98
FEMA NRI · Very High
Active fires
0
in Alameda County
01 Five-year trend

Year over year in ZIP 94538

1,571 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 243
2022 301
2023 332
2024 356
2025 339
02 Seasonality

When do fires happen in ZIP 94538?

Jan peaks. Dec dips. Aggregated across all 5 years inside this ZIP.

Jan 153
Feb 117
Mar 124
Apr 128
May 141
Jun 151
Jul 135
Aug 129
Sep 132
Oct 126
Nov 123
Dec 112
03 Top incident types

What kinds of calls lead in ZIP 94538?

Top 5 NFIRS incident types for ZIP 94538 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 150 9.5%
2 Outside rubbish fire, other 130 8.3%
3 Trash or rubbish fire, contained 116 7.4%
4 Building fires 106 6.7%
5 Cooking fire, confined to container 106 6.7%
04 Cause of ignition

What sparks fires in ZIP 94538?

For the 14 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
42%
114
Cause undetermined
28%
77
Intentional / arson
5%
13
Equipment / heat source failure
19%
51
Under investigation
6%
17
Act of nature (lightning)
0%
1
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 94538 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 50 18.3%
2 Undetermined 49 17.9%
3 Cooking area, kitchen 26 9.5%
4 Vehicle area, other 21 7.7%
5 Outside area, other 16 5.9%
6 Bedroom - < 5 persons; included are jail or prison 9 3.3%
7 Common room, den, family room, living room, lounge 7 2.6%
8 Bathroom, checkroom, lavatory, locker room 6 2.2%
9 All other areas 89 32.6%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 141 51.6%
2 Heat from powered equipment, other 44 16.1%
3 Heat source: other 20 7.3%
4 Arcing 13 4.8%
5 Spark, ember or flame from operating equipment 8 2.9%
6 Hot or smoldering object, other 8 2.9%
7 Radiated, conducted heat from operating equipment 6 2.2%
8 Heat from direct flame, convection currents 6 2.2%
9 All other sources 27 9.9%
07 The biggest fires

8 fires · $10.9M in losses

Largest single-incident losses in ZIP 94538 across 2021–2025. These 8 fires alone account for 1133% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $3,000,000 Building fires 2024 Major
2 $2,190,000 Building fires 2023 Major
3 $2,000,000 Building fires 2021 Major
4 $1,250,000 Building fires 2021 Major
5 $1,000,000 Building fires 2023 Major
6 $504,000 Building fires 2025 Major
7 $500,000 Building fires 2021 Major
8 $450,000 Building fires 2022 Major
08 Cities in this ZIP

Most active cities in ZIP 94538

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 94538.

#City5-yr incidents 
1 Fremont 1,567
2 Newark 3
3 Stockton 1
11 Current conditions

Right now in 94538

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 — 1,571 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.