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ZIP-level NFIRS data

Fires in ZIP 77070

ZIP 77070 recorded 237 fire and hazmat incidents in 2025, 1,260 across 2021–2025. Primary county: Harris County, TX. FEMA NRI rates wildfire risk here as Very High.

ZIP 77070 FIPS 48201 ZIP-level 3 counties
Total incidents (2025)
237
1,260 across 5 years
Building fires
27
23 wildland
Wildfire risk
85
FEMA NRI · Very High
Active fires
0
in Harris County
01 Five-year trend

Year over year in ZIP 77070

1,260 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 211
2022 206
2023 277
2024 329
2025 237
02 Seasonality

When do fires happen in ZIP 77070?

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

Jan 98
Feb 88
Mar 105
Apr 96
May 129
Jun 117
Jul 196
Aug 107
Sep 90
Oct 82
Nov 87
Dec 65
03 Top incident types

What kinds of calls lead in ZIP 77070?

Top 5 NFIRS incident types for ZIP 77070 across 2021–2025.

#Incident typeCountShare 
1 Gas leak (natural gas or LPG) 225 17.9%
2 Building fires 173 13.7%
3 Arcing, shorted electrical equipment 117 9.3%
4 Power line down 84 6.7%
5 Passenger vehicle fire 81 6.4%
04 Cause of ignition

What sparks fires in ZIP 77070?

For the 27 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
50%
201
Cause undetermined
10%
40
Intentional / arson
16%
63
Equipment / heat source failure
17%
68
Under investigation
6%
26
Act of nature (lightning)
1%
7
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 77070 fires across 2021–2025.

#Area of originCountShare 
1 Engine area, running gear, wheel area 64 15.8%
2 Outside area, other 51 12.6%
3 Cooking area, kitchen 48 11.8%
4 Undetermined 41 10.1%
5 Chute/container - trash, rubbish, waste 28 6.9%
6 Open area - outside; included are farmland, field 22 5.4%
7 Highway, parking lot, street: on or near 16 3.9%
8 Vehicle storage area; garage, carport 11 2.7%
9 All other areas 125 30.8%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 145 35.7%
2 Arcing 34 8.4%
3 Heat from powered equipment, other 31 7.6%
4 Radiated, conducted heat from operating equipment 26 6.4%
5 Hot or smoldering object, other 19 4.7%
6 Spark, ember or flame from operating equipment 18 4.4%
7 Hot ember or ash 15 3.7%
8 Fireworks 14 3.4%
9 All other sources 104 25.6%
07 The biggest fires

8 fires · $2.3M in losses

Largest single-incident losses in ZIP 77070 across 2021–2025. These 8 fires alone account for 236% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $556,000 Building fires 2023 Major
2 $500,000 Building fires 2022 Major
3 $300,000 Building fires 2023 Major
4 $260,000 Building fires 2023 Major
5 $200,000 Building fires 2025 Significant
6 $150,000 Building fires 2021 Significant
7 $150,000 Building fires 2024 Significant
8 $150,000 Building fires 2024 Significant
08 Cities in this ZIP

Most active cities in ZIP 77070

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 77070.

#City5-yr incidents 
1 Houston 1,189
2 Spring 5
3 Tomball 2
10 Also served by

ZIP 77070 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 77070

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 — 1,260 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.