In 2025, fire departments serving Riverside responded to 41 fire and hazmat incidents — from cooking fires to gas leaks to a single $50K building blaze. Here's the full picture.
Brush, or brush and grass mixture fire lead by count. Building fires lead by dollars. Together the top five categories make up about 68% of all calls.
Apr peaks. Jun dips. Watch for the typical fall climb starting in October.
105 incidents 2021–2025. Peak year was 2025. $219K cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021* | 6 | — | |
| 2022 | 17 | — | |
| 2023 | 13 | -23.5% | |
| 2024 | 28 | +115.4% | |
| 2025 | 41 | +46.4% |
* Well below Riverside's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.
For the 2 building fires Riverside departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 26 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Engine area, running gear, wheel area | 10 | 38.5% | |
| 2 | Undetermined | 6 | 23.1% | |
| 3 | Open area - outside; included are farmland, field | 3 | 11.5% | |
| 4 | Common room, den, family room, living room, lounge | 1 | 3.8% | |
| 5 | Laundry area, wash house (laundry) | 1 | 3.8% | |
| 6 | Equipment or service area, other | 1 | 3.8% | |
| 7 | Exterior balcony, unenclosed porch | 1 | 3.8% | |
| 8 | Attic: vacant, crawl space above top story, cupola | 1 | 3.8% | |
| 9 | Cargo/trunk area - all vehicles | 1 | 3.8% | |
| 10 | Outside area, other | 1 | 3.8% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Riverside mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 14 | 53.8% | |
| 2 | Radiated, conducted heat from operating equipment | 2 | 7.7% | |
| 3 | Hot or smoldering object, other | 2 | 7.7% | |
| 4 | Heat from powered equipment, other | 1 | 3.8% | |
| 5 | Arcing | 1 | 3.8% | |
| 6 | Hot ember or ash | 1 | 3.8% | |
| 7 | Cigarette | 1 | 3.8% | |
| 8 | Heat spread from another fire, other | 1 | 3.8% | |
| 9 | Heat from direct flame, convection currents | 1 | 3.8% | |
| 10 | Radiated heat from another fire | 1 | 3.8% | |
| 11 | All other sources | 1 | 3.8% |
Largest single-incident property losses reported by Riverside departments in 2025. These 3 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $50,000 | Road freight or transport vehicle fire | Significant | Investigated |
| 2 | $25,000 | Building fires | Significant | Investigated |
| 3 | $10,000 | Passenger vehicle fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Riverside sits above the national average for incidents per resident.
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 8,863 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2003 | Recreation and ceremony | 1,200 | 28.8 mi | |
| 2000 | Missing data/not specified/undetermined | 832 | 28.8 mi | |
| 2011 | Missing data/not specified/undetermined | 824 | 37.4 mi | |
| 2003 | Missing data/not specified/undetermined | 820 | 28.8 mi | |
| 2003 | Arson/incendiarism | 630 | 28.8 mi | |
| 2018 | Debris and open burning | 402 | 45.8 mi | |
| 2012 | Debris and open burning | 400 | 13.5 mi | |
| 2006 | Missing data/not specified/undetermined | 360 | 40.6 mi | |
| 1996 | Debris and open burning | 333 | 35.0 mi | |
| 2018 | Debris and open burning | 316 | 40.7 mi | |
| 2000 | Missing data/not specified/undetermined | 282 | 28.8 mi | |
| 2011 | Debris and open burning | 250 | 49.4 mi |
Top 1 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
| # | ZIP | 5-yr incidents | |
|---|---|---|---|
| 1 | 52327 | 105 |
Six Iowa cities with population within ±25% of Riverside. Useful comparison targets — same state, similar size, different fire profile.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 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. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.