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ZIP-level NFIRS data

Fires in ZIP 33830

ZIP 33830 recorded 295 fire and hazmat incidents in 2025, 1,347 across 2021–2025. Primary county: Polk County, FL. FEMA NRI rates wildfire risk here as Very High.

ZIP 33830 FIPS 12105 ZIP-level
Total incidents (2025)
295
1,347 across 5 years
Building fires
18
83 wildland
Wildfire risk
97
FEMA NRI · Very High
Active fires
0
in Polk County
01 Five-year trend

Year over year in ZIP 33830

1,347 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 210
2022 270
2023 269
2024 303
2025 295
02 Seasonality

When do fires happen in ZIP 33830?

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

Jan 133
Feb 101
Mar 133
Apr 145
May 169
Jun 117
Jul 106
Aug 87
Sep 88
Oct 99
Nov 103
Dec 66
03 Top incident types

What kinds of calls lead in ZIP 33830?

Top 5 NFIRS incident types for ZIP 33830 across 2021–2025.

#Incident typeCountShare 
1 Unauthorized burning 317 23.5%
2 Brush, or brush and grass mixture fire 188 14.0%
3 Building fires 102 7.6%
4 Passenger vehicle fire 84 6.2%
5 Power line down 80 5.9%
04 Cause of ignition

What sparks fires in ZIP 33830?

For the 18 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
41%
215
Cause undetermined
35%
184
Intentional / arson
6%
31
Equipment / heat source failure
6%
33
Under investigation
6%
34
Act of nature (lightning)
6%
20
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 33830 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 152 29.0%
2 Open area - outside; included are farmland, field 86 16.4%
3 Engine area, running gear, wheel area 51 9.7%
4 Wildland, woods 31 5.9%
5 Cooking area, kitchen 30 5.7%
6 Outside area, other 24 4.6%
7 Other 21 4.0%
8 Highway, parking lot, street: on or near 18 3.4%
9 All other areas 112 21.3%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 345 65.7%
2 Arcing 32 6.1%
3 Heat from powered equipment, other 28 5.3%
4 Heat source: other 15 2.9%
5 Radiated, conducted heat from operating equipment 15 2.9%
6 Hot or smoldering object, other 13 2.5%
7 Hot ember or ash 13 2.5%
8 Spark, ember or flame from operating equipment 11 2.1%
9 All other sources 53 10.1%
07 The biggest fires

8 fires · $3.2M in losses

Largest single-incident losses in ZIP 33830 across 2021–2025. These 8 fires alone account for 373% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $1,000,000 Building fires 2022 Major
2 $500,000 Building fires 2024 Major
3 $360,000 Building fires 2024 Major
4 $300,000 Road freight or transport vehicle fire 2023 Major
5 $300,000 Building fires 2024 Major
6 $275,000 Building fires 2025 Major
7 $250,000 Building fires 2022 Major
8 $225,000 Building fires 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 33830

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 33830.

#City5-yr incidents 
1 Bartow 1,283
2 Winter Haven 22
3 Mulberry 13
4 Lake Wales 9
5 Fort Meade 4
11 Current conditions

Right now in 33830

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 — 1,347 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.