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ZIP-level NFIRS data

Fires in ZIP 77504

ZIP 77504 recorded 39 fire and hazmat incidents in 2025, 64 across 2021–2025. Primary county: Harris County, TX. FEMA NRI rates wildfire risk here as Very High.

ZIP 77504 FIPS 48201 ZIP-level 3 counties
Total incidents (2025)
39
64 across 5 years
Building fires
2
2 wildland
Wildfire risk
85
FEMA NRI · Very High
Active fires
0
in Harris County
01 Five-year trend

Year over year in ZIP 77504

64 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 8
2022 2
2023 9
2024 6
2025 39
02 Seasonality

When do fires happen in ZIP 77504?

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

Jan 6
Feb 1
Mar 0
Apr 2
May 2
Jun 5
Jul 13
Aug 2
Sep 13
Oct 3
Nov 14
Dec 3
03 Top incident types

What kinds of calls lead in ZIP 77504?

Top 5 NFIRS incident types for ZIP 77504 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 8 12.5%
2 Power line down 7 10.9%
3 Arcing, shorted electrical equipment 6 9.4%
4 Cooking fire, confined to container 5 7.8%
5 Electrical wiring/equipment problem, other 5 7.8%
04 Cause of ignition

What sparks fires in ZIP 77504?

For the 2 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
55%
12
Cause undetermined
9%
2
Intentional / arson
18%
4
Equipment / heat source failure
9%
2
Under investigation
9%
2
Act of nature (lightning)
0%
0
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 77504 fires across 2021–2025.

#Area of originCountShare 
1 Outside area, other 6 27.3%
2 Engine area, running gear, wheel area 3 13.6%
3 Vehicle area, other 2 9.1%
4 Undetermined 2 9.1%
5 Entrance way, lobby 1 4.5%
6 Bedroom - < 5 persons; included are jail or prison 1 4.5%
7 Bathroom, checkroom, lavatory, locker room 1 4.5%
8 Chute/container - trash, rubbish, waste 1 4.5%
9 All other areas 5 22.7%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 8 36.4%
2 Heat from powered equipment, other 4 18.2%
3 Hot or smoldering object, other 3 13.6%
4 Hot ember or ash 3 13.6%
5 Heat, spark from friction 1 4.5%
6 Incendiary device 1 4.5%
7 Heat from other open flame or smoking materials 1 4.5%
8 Heat from direct flame, convection currents 1 4.5%
07 The biggest fires

8 fires · $605K in losses

Largest single-incident losses in ZIP 77504 across 2021–2025. These 8 fires alone account for 1513% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $500,000 Building fires 2023 Major
2 $30,000 Special outside fire, other 2023 Significant
3 $25,000 Passenger vehicle fire 2025 Significant
4 $20,000 Mobile property (vehicle) fire, other 2023 Significant
5 $15,000 Mobile property (vehicle) fire, other 2024 Significant
6 $15,000 Fire in mobile home used as fixed residence 2025 Significant
7 $100 Trash or rubbish fire, contained 2023 Significant
8 $50 Building fires 2024 Significant
08 Cities in this ZIP

Most active cities in ZIP 77504

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77504.

#City5-yr incidents 
1 Pasadena 32
2 Houston 30
10 Also served by

ZIP 77504 crosses 3 counties

Some ZIPs span multiple counties. The primary above is the largest by population weight; secondary counties are below.

CountyStateWeight 
Fort Bend County TX 0.50 FIPS 48157
Montgomery County TX 0.50 FIPS 48339
11 Current conditions

Right now in 77504

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 — 64 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.