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2025 County Report

Fires in New Castle County, DE

In 2025, fire departments serving New Castle County responded to 7,158 fire and hazmat incidents — including a single $500K property loss. FEMA NRI rates wildfire risk here as High.

268,447 residents FIPS 10003 397 cities · 21 fire depts
Total incidents
7,158
36,110 across 5 years
Building fires
1,920
315 wildland
Property loss
$4.1M
$2.6M structure · $1.5M contents
Casualties
1 / 25
1 civ deaths · 18 civ inj · 7 FF inj
01 The mix

What kinds of fires happen here?

Building fires lead by count. Top five categories make up about 67% of all calls.

7,158
Total Incidents
Building fires 1,920 26.8%
Gas leak (natural gas or LPG) 1,276 17.8%
Cooking fire, confined to container 896 12.5%
Power line down 403 5.6%
Electrical wiring/equipment problem, other 309 4.3%
All other categories 2,354 32.9%
02 Seasonality

When do fires happen in New Castle County?

Mar peaks. Dec dips.

Jan 676
Feb 637
Mar 741
Apr 547
May 590
Jun 667
Jul 735
Aug 576
Sep 496
Oct 522
Nov 607
Dec 364
03 Five-year trend

Year over year in New Castle County

36,110 incidents from 2021 through 2025.

YearIncidents 
2021 6,309
2022 6,701
2023 7,629
2024 8,313
2025 7,158
04 Cause of ignition

What sparks building fires?

For the 1,920 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
49%
540
Cause undetermined
14%
154
Intentional / arson
8%
90
Equipment / heat source failure
8%
84
Under investigation
17%
181
Act of nature (lightning)
4%
42
05 The biggest fires

10 fires · $2.0M in losses

Largest single-incident property losses in New Castle County during 2025. These 10 fires alone account for 75% of the county's total.

#Property lossCityTypeSeverity
1 $500,000 Wilmington Building fires Major
2 $350,000 Wilmington Building fires Major
3 $250,000 New Castle Building fires Major
4 $200,000 Wilmington Building fires Significant
5 $150,000 BEAR Fire in mobile home used as fixed residence Significant
6 $150,000 NEW CASTLE Building fires Significant
7 $100,000 Wilmington Building fires Significant
8 $100,000 New Castle Building fires Significant
9 $80,000 Middletown Fire in mobile prop. used as a fixed struc., other Significant
10 $75,000 Wilmington Building fires Significant
06 How New Castle County compares

New Castle County vs DE vs the nation

Per-capita rates let us compare apples to apples.

26.66
Incidents per 1,000 residents
New Castle County
26.66
DE avg
24.89
US avg
7.15
7.15
Building fires per 1,000 residents
New Castle County
7.15
DE avg
5.89
US avg
0.82
3.7
Civilian fire deaths per million
New Castle County
3.7
DE avg
7
US avg
5.8
07 Cities in this county

Largest cities in New Castle County

12 cities mapped to FIPS 10003.

08 First responders

Busiest fire departments in New Castle County

21 departments report from this county.

Wilmington Fire Department
Wilmington
FDID 10100 1,118 incidents 171 paid
Christiana Fire Company
Bear
FDID 20012 764 incidents
Aetna Hose Hook Ladder Company
NEWARK
FDID 20009 639 incidents 4 paid 100 vol
Minquas Fire Company
Wilmington
FDID 20023 478 incidents
Wilmington Manor Fire Company
New Castle
FDID 20028 371 incidents
09 Historical wildfires

Largest fires recorded in DE

Top 4 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 DEBHR-FY19-RX-Wildflower Units 2-3-9 2019 FWS 43
2 DEPHR-FY19-RX-HQ Field 321 2019 FWS 35
3 DEPHR-FY19-RX-HQ Field 318 2019 FWS 21
4 DEBHR-FY19-RX-WSG Field 8 2018 FWS 12

About this data

County-level NFIRS aggregates for 2025, plus 5-year totals across 2021–2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Wildfire risk score (0–100) and Expected Annual Loss come from FEMA's National Risk Index. Drought class is the most recent USDM classification (D0 = abnormally dry through D4 = exceptional drought). Historical fire perimeters are sourced from the NIFC InterAgency Fire Perimeter History.