Home› ZIP› 20637
ZIP-level NFIRS data

Fires in ZIP 20637

ZIP 20637 recorded 55 fire and hazmat incidents in 2025, 350 across 2021–2025. Primary county: Charles County, MD.

ZIP 20637 FIPS 24017 ZIP-level
Total incidents (2025)
55
350 across 5 years
Building fires
6
13 wildland
Wildfire risk
19
FEMA NRI · Very Low
Active fires
0
in Charles County
01 Five-year trend

Year over year in ZIP 20637

350 incidents from 2021 through 2025 inside this ZIP.

YearIncidents 
2021 43
2022 72
2023 77
2024 103
2025 55
02 Seasonality

When do fires happen in ZIP 20637?

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

Jan 22
Feb 31
Mar 38
Apr 47
May 23
Jun 44
Jul 32
Aug 29
Sep 13
Oct 14
Nov 36
Dec 21
03 Top incident types

What kinds of calls lead in ZIP 20637?

Top 5 NFIRS incident types for ZIP 20637 across 2021–2025.

#Incident typeCountShare 
1 Building fires 70 20.0%
2 Aircraft standby 47 13.4%
3 Gas leak (natural gas or LPG) 39 11.1%
4 Brush, or brush and grass mixture fire 22 6.3%
5 Fires in structures other than in a building 21 6.0%
04 Cause of ignition

What sparks fires in ZIP 20637?

For the 6 building fires reported here in 2025, here's how investigators classified ignition cause.

Unintentional
47%
23
Cause undetermined
14%
7
Intentional / arson
0%
0
Equipment / heat source failure
8%
4
Under investigation
24%
12
Act of nature (lightning)
7%
3
05 Where fires start

Where in the building fires start

NFIRS Area of Origin for ZIP 20637 fires across 2021–2025.

#Area of originCountShare 
1 Undetermined 20 40.8%
2 Other 5 10.2%
3 Engine area, running gear, wheel area 5 10.2%
4 Cooking area, kitchen 3 6.1%
5 Exterior balcony, unenclosed porch 2 4.1%
6 Outside area, other 2 4.1%
7 Open area - outside; included are farmland, field 2 4.1%
8 Wildland, woods 2 4.1%
9 All other areas 8 16.3%
06 What ignited it

The leading heat sources here

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

#Heat sourceCountShare 
1 Undetermined 27 55.1%
2 Heat source: other 4 8.2%
3 Hot or smoldering object, other 3 6.1%
4 Hot ember or ash 3 6.1%
5 Cigarette 3 6.1%
6 Candle 2 4.1%
7 Spark, ember or flame from operating equipment 1 2.0%
8 Arcing 1 2.0%
9 All other sources 5 10.2%
07 The biggest fires

8 fires · $905K in losses

Largest single-incident losses in ZIP 20637 across 2021–2025. These 8 fires alone account for 3549% of the ZIP's 2025 reported total.

#Property lossTypeYearSeverity
1 $350,000 Building fires 2024 Major
2 $250,000 Building fires 2024 Major
3 $100,000 Building fires 2023 Significant
4 $60,000 Mobile property (vehicle) fire, other 2024 Significant
5 $50,000 Passenger vehicle fire 2022 Significant
6 $50,000 Building fires 2023 Significant
7 $25,000 Building fires 2022 Significant
8 $20,000 Passenger vehicle fire 2022 Significant
08 Cities in this ZIP

Most active cities in ZIP 20637

Some ZIPs span multiple cities. Ranked by 5-yr NFIRS incidents inside ZIP 20637.

#City5-yr incidents 
1 Hughesville 341
2 Baden 1
3 Charlotte Hall 1
11 Current conditions

Right now in 20637

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 — 350 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.