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ZIP-level NFIRS data

Fires in ZIP 37221

ZIP 37221 recorded 213 fire and hazmat incidents in 2025, 1,008 across 2021–2025. Primary county: Davidson County, TN. FEMA NRI rates wildfire risk here as Moderate.

ZIP 37221 FIPS 47037 ZIP-level
Total incidents (2025)
213
1,008 across 5 years
Building fires
13
16 wildland
Wildfire risk
58
FEMA NRI · Moderate
Active fires
0
in Davidson County
01 Five-year trend

Year over year in ZIP 37221

1,008 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 205
2022 187
2023 226
2024 177
2025 213
02 Seasonality

When do fires happen in ZIP 37221?

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

Jan 72
Feb 62
Mar 129
Apr 89
May 81
Jun 94
Jul 106
Aug 80
Sep 77
Oct 79
Nov 73
Dec 66
03 Top incident types

What kinds of calls lead in ZIP 37221?

Top 5 NFIRS incident types for ZIP 37221 across 2021–2025.

#Incident typeCountShare 
1 Power line down 230 22.8%
2 Gas leak (natural gas or LPG) 111 11.0%
3 Building fires 66 6.5%
4 Outside rubbish, trash or waste fire 59 5.9%
5 Passenger vehicle fire 58 5.8%
04 Cause of ignition

What sparks fires in ZIP 37221?

For the 13 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
49%
109
Cause undetermined
11%
25
Intentional / arson
16%
36
Equipment / heat source failure
13%
29
Under investigation
9%
19
Act of nature (lightning)
2%
4
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 37221 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 50 22.4%
2 Outside area, other 29 13.0%
3 Engine area, running gear, wheel area 28 12.6%
4 Cooking area, kitchen 14 6.3%
5 Vehicle area, other 9 4.0%
6 Open area - outside; included are farmland, field 9 4.0%
7 Other 8 3.6%
8 Cargo/trunk area - all vehicles 8 3.6%
9 All other areas 68 30.5%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 70 31.4%
2 Hot or smoldering object, other 24 10.8%
3 Heat from powered equipment, other 23 10.3%
4 Heat source: other 19 8.5%
5 Hot ember or ash 14 6.3%
6 Spark, ember or flame from operating equipment 11 4.9%
7 Radiated, conducted heat from operating equipment 11 4.9%
8 Arcing 11 4.9%
9 All other sources 40 17.9%
07 The biggest fires

8 fires · $5.0M in losses

Largest single-incident losses in ZIP 37221 across 2021–2025. These 8 fires alone account for 285% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $2,000,000 Building fires 2022 Major
2 $1,343,160 Building fires 2025 Major
3 $375,000 Building fires 2022 Major
4 $324,800 Building fires 2023 Major
5 $302,400 Building fires 2024 Major
6 $254,660 Building fires 2022 Major
7 $210,320 Building fires 2024 Significant
8 $202,400 Building fires 2024 Significant
08 Cities in this ZIP

Most active cities in ZIP 37221

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 37221.

#City5-yr incidents 
1 Nashville 1,006
2 Franklin 2
11 Current conditions

Right now in 37221

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 — 1,008 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.