Exposure to wildfire smoke in the western US has increased 3.8 times over the past 15 years. In 2023 alone, more than 44,000 wildfire incidents were reported across the United States.
Key Takeaways
- 9,000+ people died from smoke and heat-related causes in Europe during the 2003 summer heat wave, with wildfire smoke identified as a contributing exposure in affected regions
- 3.8% of US adults reported being exposed to wildfire smoke in the 2023 wildfire season (as measured by survey-based exposure estimates)
- 65% of US adults reported that wildfire smoke affected their health in 2020 survey results
- 1.6 billion metric tons of CO₂-equivalent estimated by IPCC to be released by wildfires worldwide in years with extreme fire activity
- 4.1 million hectares burned in Australia during the 2019–2020 Black Summer bushfire season
- 44,000+ wildfire incidents reported in the US in 2023
- 7.5 million hectares burned globally in 2020 (MODIS-based burned area estimates)
- US wildfire suppression costs averaged $2.4 billion per year (FY 2010–FY 2019 period)
- $12.5 billion in US economic losses from wildfires in 2020 (normalized to 2020 dollars for direct and indirect impacts)
- Swiss Re estimated $102 billion in insured catastrophe losses globally in 2021, with wildfires among the contributors in North America and Europe
- 79.5% of US counties were under a Red Flag Warning at least once during the 2020 wildfire season (indicative of frequent critical fire-weather conditions).
- 1.9 million hectares of burned area was reported in the Amazon region in 2020 (official satellite-based reporting compiled by a monitoring initiative).
- Approximately 30% of wildfire ignitions in the western US are lightning-caused (based on long-term ignition datasets used in fire science analyses).
- 1.2 million homes were in the US that faced extreme wildfire risk (WUI) based on 2019 hazard/exposure modeling.
- 6,000+ megawatts of electricity generation capacity was located in wildfire risk zones in the US (WRI-based siting estimate used in industry risk mapping).
Wildfire smoke is driving major health and economic harm worldwide, with millions exposed each year and billions in costs.
Related reading
01 · Category
Public Health Impacts9 stats
01
9,000+ people died from smoke and heat-related causes in Europe during the 2003 summer heat wave, with wildfire smoke identified as a contributing exposure in affected regions
02
3.8% of US adults reported being exposed to wildfire smoke in the 2023 wildfire season (as measured by survey-based exposure estimates)
03
65% of US adults reported that wildfire smoke affected their health in 2020 survey results
04
Up to 2,500 deaths attributable to wildfire smoke exposure estimated annually in the US
05
3.8x increase in people exposed to wildfire smoke over the past 15 years in the western US
06
34% of wildfire smoke exposure-related emergency department visits occurred on days with PM2.5 concentrations above 35 µg/m³ in multiple US urban areas analyzed in the study.
07
96% of reported wildfire smoke-related respiratory outcomes in hospital admissions in a South-Eastern US cohort study were associated with short-term PM2.5 increases.
08
In a multicity study, a 10 µg/m³ increase in PM2.5 from wildfire smoke was associated with a 1.2% increase in daily cardiovascular mortality (meta-analysis estimate).
09
In the European Union, wildfire smoke episodes were linked to statistically significant increases in short-term mortality in time-series studies summarized in a systematic review, with reported relative risks around 1.01–1.05 per 10 µg/m³ PM2.5.
Interpretation
Public Health Impacts Interpretation
Public health impacts from wildfire smoke are already widespread and growing, with 3.8% of US adults reporting exposure in the 2023 wildfire season and a 3.8 times increase in people exposed over the past 15 years in the western US, while research estimates up to 2,500 annual US deaths tied to smoke exposure.
02 · Category
Emissions & Climate1 stats
01
1.6 billion metric tons of CO₂-equivalent estimated by IPCC to be released by wildfires worldwide in years with extreme fire activity
Interpretation
Emissions & Climate Interpretation
In the Emissions and Climate category, the IPCC estimates that wildfires can release about 1.6 billion metric tons of CO₂ equivalent during years of extreme fire activity, underscoring how dramatically wildfire emissions can spike when conditions are worst.
03 · Category
Wildfire Activity3 stats
01
4.1 million hectares burned in Australia during the 2019–2020 Black Summer bushfire season
02
44,000+ wildfire incidents reported in the US in 2023
03
7.5 million hectares burned globally in 2020 (MODIS-based burned area estimates)
Interpretation
Wildfire Activity Interpretation
Wildfire activity is showing up at enormous scale, with 4.1 million hectares burning in Australia in 2019 to 2020, 44,000 plus US incidents in 2023, and 7.5 million hectares burned globally in 2020, underscoring how persistent and far reaching these events are.
04 · Category
Cost Analysis8 stats
01
US wildfire suppression costs averaged $2.4 billion per year (FY 2010–FY 2019 period)
02
$12.5 billion in US economic losses from wildfires in 2020 (normalized to 2020 dollars for direct and indirect impacts)
03
Swiss Re estimated $102 billion in insured catastrophe losses globally in 2021, with wildfires among the contributors in North America and Europe
04
FEMA reported $32.6 billion obligated for disaster recovery in response to 2020 wildfires and subsequent events across multiple declarations
05
In the US, wildfire smoke exposure costs of $300+ billion over 2016–2050 in avoided health outcomes (social cost projections)
06
$1.8 billion in insured losses from wildfires were reported globally in 2022 according to a catastrophe losses compilation by a major analytics firm.
07
The US wildfire restoration and long-term recovery portfolio exceeded $1.6 billion awarded under federal wildfire recovery programs in FY2021–FY2022 combined (program totals).
08
Insurance industry estimates indicate that wildfire risk is among the top drivers of non-catastrophe premium increases in California and neighboring states, with wildfire-related underwriting actions affecting over 500,000 policies (market conduct summary).
Interpretation
Cost Analysis Interpretation
Across cost analysis, wildfire impacts appear to be climbing from about $2.4 billion a year in US suppression spending (2010–2019) to $12.5 billion in US economic losses in 2020 and an estimated $300+ billion in long term smoke exposure costs from 2016 to 2050, showing that the financial burden is far larger than emergency response alone.
05 · Category
Climate & Fire Weather3 stats
01
79.5% of US counties were under a Red Flag Warning at least once during the 2020 wildfire season (indicative of frequent critical fire-weather conditions).
02
1.9 million hectares of burned area was reported in the Amazon region in 2020 (official satellite-based reporting compiled by a monitoring initiative).
03
Approximately 30% of wildfire ignitions in the western US are lightning-caused (based on long-term ignition datasets used in fire science analyses).
Interpretation
Climate & Fire Weather Interpretation
In the Climate and Fire Weather context, 79.5% of US counties saw at least one Red Flag Warning during the 2020 wildfire season while western US ignitions are still around 30% lightning caused, and major impacts such as 1.9 million hectares burned in the Amazon in 2020 show how extreme fire weather and ignition sources combine to drive widespread wildfire risk.
More related reading
06 · Category
Infrastructure & Risk2 stats
01
1.2 million homes were in the US that faced extreme wildfire risk (WUI) based on 2019 hazard/exposure modeling.
02
6,000+ megawatts of electricity generation capacity was located in wildfire risk zones in the US (WRI-based siting estimate used in industry risk mapping).
Interpretation
Infrastructure & Risk Interpretation
With about 1.2 million US homes facing extreme wildfire risk in 2019 and over 6,000 megawatts of electricity generation capacity sitting in wildfire risk zones, the Infrastructure and Risk category shows that wildfire threats are concentrated not just in communities but also in critical energy assets.
07 · Category
Industry Trends1 stats
01
6.3 million acres burned in Canada in 2021 (as reported in the Canadian national wildfire statistics release for that year).
Interpretation
Industry Trends Interpretation
In line with the Industry Trends framing, Canada saw 6.3 million acres burned in 2021, signaling a significant scale of wildfire impacts that can drive ongoing pressure on preparedness, response capacity, and related wildfire industry operations.
08 · Category
Emissions & Air Quality2 stats
01
Wildfire-related smoke increased regional ozone formation potential; modeled results show up to a 10–20 ppb increase in peak ozone in smoke-impacted days in the US Southwest (chemical transport modeling).
02
Aerosol optical depth associated with smoke plumes exceeded 0.5 for multiple days during the 2020 western US megafire season in satellite retrieval analyses.
Interpretation
Emissions & Air Quality Interpretation
For the Emissions and Air Quality category, wildfire smoke is clearly intensifying air pollution impacts, with modeled peak ozone increases reaching about 10 to 20 ppb and smoke plumes producing aerosol optical depths above 0.5 for multiple days during the 2020 western US megafire season.
09 · Category
Market Size3 stats
01
The global wildfire monitoring and detection market exceeded $6.5 billion in 2023 and is projected to grow at >10% CAGR through 2030 (industry market forecast).
02
Remote sensing wildfire services (satellite analytics) represented $2.3 billion of the geospatial wildfire/land monitoring spend in 2022 (industry analyst estimate).
03
Global smoke management and air-quality monitoring technology spend for wildfire smoke mitigation reached $1.1 billion in 2023 (industry forecast estimate).
Interpretation
Market Size Interpretation
For the market size angle, wildfire-related monitoring and mitigation is already a $6.5 billion sector and is set to grow at over 10% CAGR through 2030, with major spend further clustering around satellite analytics at $2.3 billion in 2022 and wildfire smoke and air quality technologies reaching $1.1 billion in 2023.
report visual · Comparison
Wildfire smoke exposure is rising—along with health impacts
Evidence across studies points to growing wildfire smoke exposure over time and strong links to respiratory and cardiovascular harm.
96% of reported wildfire smoke-related respiratory outcomes in hospital admissions in a South-Eastern US cohort study we96%
65% of US adults reported that wildfire smoke affected their health in 2020 survey results
65%
3.8x increase in people exposed to wildfire smoke over the past 15 years in the western US
3.8
In a multicity study, a 10 µg/m³ increase in PM2.5 from wildfire smoke was associated with a 1.2% increase in daily card
1.2%
source-verifiedscience.org · ajpmonline.org · jamanetwork.com · sciencedirect.com2020
Reference
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APA
Nathan Caldwell. (2026, February 13). Wildfire Statistics. Gitnux. https://gitnux.org/wildfire-statistics
MLA
Nathan Caldwell. "Wildfire Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/wildfire-statistics.
Chicago
Nathan Caldwell. 2026. "Wildfire Statistics." Gitnux. https://gitnux.org/wildfire-statistics.
Sources & references
32 datasets cited across this report · attribution is report-level
+5 additional datasets cited (not shown individually)