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2025 County Report

Fires in Story County, IA

In 2025, fire departments serving Story County responded to 552 fire and hazmat incidents — including a single $340K property loss.

89,606 residents FIPS 19169 20 cities · 14 fire depts
Total incidents
552
2,420 across 5 years
Building fires
62
83 wildland
Property loss
$2.7M
$1.9M structure · $801K contents
Casualties
0 / 15
0 civ deaths · 4 civ inj · 11 FF inj
01 The mix

What kinds of fires happen here?

Building fires lead by count. Top five categories make up about 43% of all calls.

552
Total Incidents
Building fires 62 11.2%
Grass fire 52 9.4%
Chemical hazard (no spill or leak) 43 7.8%
Unauthorized burning 40 7.2%
Carbon monoxide incident 38 6.9%
All other categories 317 57.4%
02 Seasonality

When do fires happen in Story County?

Mar peaks. Dec dips.

Jan 45
Feb 41
Mar 75
Apr 60
May 43
Jun 54
Jul 36
Aug 48
Sep 34
Oct 49
Nov 56
Dec 11
03 Five-year trend

Year over year in Story County

2,420 incidents from 2021 through 2025.

YearIncidents 
2021 424
2022 437
2023 428
2024 579
2025 552
04 Cause of ignition

What sparks building fires?

For the 62 building fires departments responded to in 2025, here's how investigators classified them.

Unintentional
55%
52
Cause undetermined
13%
12
Intentional / arson
6%
6
Equipment / heat source failure
12%
11
Under investigation
11%
10
Act of nature (lightning)
3%
3
05 The biggest fires

10 fires · $1.3M in losses

Largest single-incident property losses in Story County during 2025. These 10 fires alone account for 71% of the county's total.

#Property lossCityTypeSeverity
1 $340,000 City of Huxley Off-road vehicle or heavy equipment fire Major
2 $272,000 Ames Building fires Major
3 $200,000 Ames Building fires Significant
4 $150,000 City of Ames Building fires Significant
5 $100,000 Ames Off-road vehicle or heavy equipment fire Significant
6 $80,000 Ames Building fires Significant
7 $50,000 Ames Vehicle accident, general cleanup Significant
8 $50,000 Ames Building fires Significant
9 $50,000 Ames Building fires Significant
10 $50,000 City of Story City Building fires Significant
06 How Story County compares

Story County vs IA vs the nation

Per-capita rates let us compare apples to apples.

6.16
Incidents per 1,000 residents
Story County
6.16
IA avg
9.41
US avg
7.15
0.69
Building fires per 1,000 residents
Story County
0.69
IA avg
1.15
US avg
0.82
0
Civilian fire deaths per million
Story County
0
IA avg
7.3
US avg
5.8
07 Cities in this county

Largest cities in Story County

12 cities mapped to FIPS 19169.

08 First responders

Busiest fire departments in Story County

14 departments report from this county.

AMES FIRE DEPT
—
FDID 85001 289 incidents
NEVADA FIRE DEPT
—
FDID 85010 52 incidents 21 paid
CAMBRIDGE FIRE DEPT
—
FDID 85002 40 incidents
STORY CITY FIRE DEPT
—
FDID 85013 40 incidents
MAXWELL FIRE DEPT
—
FDID 85009 30 incidents
09 Historical wildfires

Largest fires recorded in IA

Top 10 fire perimeters by acres burned (state-scoped fallback while we build out per-county polygons).

#NameYearAgencyAcres
1 IAWTR-FY19-RX-Dunbar Slough 2019 FWS 759
2 IANSR-FY19-RX-Highpoint Savanna 2019 FWS 737
3 IANSR-FY19-RX-N. Bison/Henslow hill 2019 FWS 482
4 Upper Iowa River Wildfire 2024 FWS 465
5 Cornland Wildfire 2018 FWS 402
6 Bottoms WF 2021 PRI 353
7 Crane Lake WF 2021 State 349
8 IAWTR-FY19-RX-Union Hills North 2019 FWS 315
9 Schott WF 2018 FWS 314
10 IAWTR-FY19-RX-Errington Marsh 2019 FWS 304

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.