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ZIP-level NFIRS data

Fires in ZIP 75121

ZIP 75121 recorded 2 fire and hazmat incidents in 2025, 22 across 2021–2025. Primary county: Collin County, TX. FEMA NRI rates wildfire risk here as Very High.

ZIP 75121 FIPS 48085 ZIP-level
Total incidents (2025)
2
22 across 5 years
Building fires
1
0 wildland
Wildfire risk
81
FEMA NRI · Very High
Active fires
0
in Collin County
01 Five-year trend

Year over year in ZIP 75121

22 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 5
2022 7
2023 2
2024 6
2025 2
02 Seasonality

When do fires happen in ZIP 75121?

Feb peaks. Apr dips. Aggregated across all 5 years inside this ZIP.

Jan 4
Feb 6
Mar 2
Apr 0
May 0
Jun 0
Jul 4
Aug 1
Sep 0
Oct 1
Nov 1
Dec 3
03 Top incident types

What kinds of calls lead in ZIP 75121?

Top 5 NFIRS incident types for ZIP 75121 across 2021–2025.

#Incident typeCountShare 
1 Building fires 6 27.3%
2 Grass fire 6 27.3%
3 Natural vegetation fire, other 2 9.1%
4 Outside rubbish, trash or waste fire 2 9.1%
5 Power line down 2 9.1%
04 Cause of ignition

What sparks fires in ZIP 75121?

For the 1 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
25%
3
Cause undetermined
8%
1
Intentional / arson
33%
4
Equipment / heat source failure
8%
1
Under investigation
17%
2
Act of nature (lightning)
9%
1
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 75121 fires across 2021–2025.

#Area of originCountShare 
1 Open area - outside; included are farmland, field 3 25.0%
2 Undetermined 3 25.0%
3 Outside area, other 2 16.7%
4 Other 1 8.3%
5 Vehicle storage area; garage, carport 1 8.3%
6 Engine area, running gear, wheel area 1 8.3%
7 Railroad right of way: on or near 1 8.3%
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 66.7%
2 Flame/torch used for lighting 2 16.7%
3 Spark, ember or flame from operating equipment 1 8.3%
4 Arcing 1 8.3%
11 Current conditions

Right now in 75121

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 — 22 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.