According to the most recent Global Report on Internal Displacement 2025 by the Internal Displacement Monitoring Centre (IDMC), 11 million were displaced by disasters in the US during 2024, accounting for a quarter of the global total. This was the highest figure for any country, highlighting a growing humanitarian and climate crisis.

Table: Disaster-Related Displacement Statistics (2024)

A Record-Breaking Year Globally

In 2024, 45.8 million people were displaced within their countries due to disasters, the highest number since IDMC began tracking in 2008. This was also more than twice the annual average of the past decade. Approximately 99.5% of these movements were caused by weather-related events intensified by climate change.

The U.S. was one of 29 countries and territories to report record-high levels of disaster-related displacement. While many displacements were preemptive evacuations, the report noted that millions remained displaced longer than necessary due to inadequate post-disaster support.

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Wildfires, Inequality, and 11 Million Displaced by Disasters in the US During 2024

The U.S. alone saw 11 million disaster-related displacements in 2024, the highest globally. The Americas recorded 14.5 million internal displacements, with 13.1 million due to disasters.

Wildfires accounted for 266,000 of these movements, the highest wildfire-related displacement figure in the world. Most occurred in California, with the Park Fire in Butte and Tehama counties alone displacing more than 66,000 people in late July.

What makes wildfires particularly disruptive is the delay in return. The report highlighted the 2023 Maui fires in Hawaii, where more than 3,000 people remained internally displaced by the end of 2024.

As part of the broader crisis, the 11 million displaced by disasters in the US during 2024 exemplify how cascading climate events can push systems beyond their limits, leaving thousands in prolonged states of uncertainty.

Behind the Numbers: Human Realities

Beyond statistics, displacement creates long-lasting psychological, financial, and physical stress. Vulnerable groups, such as low-income families, older people, and people with disabilities, are especially affected. For many, evacuation is just the beginning of a prolonged recovery journey.

The report noted that while preemptive evacuations saved lives in countries like the U.S., the Philippines, and Bangladesh, limited data concealed the full extent of the problem. Among 163 countries that reported disaster displacement, 53 cited preemptive evacuations, though the real figure is likely higher.

Why is the U.S. Leading in Displacement?

Multiple factors explain the U.S.’s high displacement rates. Climate change has increased the frequency and severity of hurricanes, wildfires, and floods. Many people live in high-risk zones, including coastal and wildfire-prone areas.

Urban expansion, outdated zoning, and weak infrastructure also contribute to the problem. Although the U.S. has robust disaster response systems, the magnitude and frequency of events overwhelm both state and federal agencies.

The 11 million displaced by disasters in the US during 2024 reflect how infrastructure, housing, and land use policies must evolve to meet the scale of climate-related emergencies.

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Global Comparisons: A Growing Crisis

The displacement crisis is not confined to the U.S. Sub-Saharan Africa recorded 19.3 million displacements, including 7.8 million due to disasters. East Asia and the Pacific saw 16.2 million displacements, 14.8 million of which were disaster-related.

In South Asia, disaster displacements almost tripled to 9.2 million in 2024, its second-highest figure in over a decade, mainly due to drier conditions from El Niño. Europe and Central Asia had the lowest total displacements at 846,000, yet ten countries reported record disaster-related numbers, showing that climate impacts are globally pervasive.

Climate Change: The Common Denominator

The report consistently linked disaster displacement with climate change. More than 75% of conflict- and violence-displaced people lived in countries highly vulnerable to climate change. The number of nations experiencing conflict- and disaster-related displacement has tripled since 2009, underscoring the compound risks communities face.

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What Needs to Change

Given the growing scale of displacement, the focus must shift from reactive evacuation to proactive resilience. This includes investments in climate-resilient infrastructure, updated zoning laws, and comprehensive relocation policies.

Displaced individuals may remain in limbo long after disasters subside without timely support. Policymakers must prioritize long-term recovery, especially for communities repeatedly affected by extreme weather. Enhancing early warning systems, community preparedness, and integrating climate risk into urban planning are also essential.

Key Takeaway

The fact that 11 million displaced by disasters in the US during 2024, representing a quarter of global disaster displacements, is more than a statistic—it’s a defining moment. The nation faces not just an environmental crisis but a humanitarian one. As climate-related disasters become more frequent and intense, the urgency to build resilience and act decisively has never been greater.

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