How Many People Die on Everest? The Real Numbers

"How many people die on Everest" is one of the most searched questions about the mountain, and it deserves a careful, accurate answer rather than a scary one. The honest picture is this: across more than a century of expeditions, around 340 people have died on Mount Everest, and the long-run rate works out to roughly one death per hundred successful summits. Those numbers are sobering, but they are also specific, and understanding them — what they count, how they vary by year, and where the real dangers lie — tells you far more than a headline ever could.

This article sticks to verified figures from the Himalayan Database and reputable analysis. It is a companion to our look at the Everest summit success rate and the physiology of the death zone above 8,000 metres.

Key takeaways

• The cumulative death toll is about 340 from the 1920s through 2025; sources range narrowly from roughly 339 to 346 depending on counting methods.
• A typical modern season records deaths in the high single digits — about 5 in 2025 and around 8 in 2024 — but bad years are far worse.
• The long-run death rate is roughly one per hundred summits and has stayed broadly flat for 30 years even as summits doubled.
• The leading causes are avalanche/icefall, falls, altitude illness (HACE/HAPE), and exposure/exhaustion.
• The deadliest single days came from the 2014 icefall avalanche (16 workers) and the 2015 earthquake avalanche (~19 deaths).
• More than 200 climbers' remains are thought to stay on the mountain, mostly high up where recovery is extremely hazardous.

The total: about 340 deaths

The single most reliable archive of Himalayan climbing is the Himalayan Database, begun by journalist Elizabeth Hawley and maintained after her by researchers including Richard Salisbury. By that record, the cumulative number of deaths on Everest from the first expeditions in 1921 through the end of the 2025 season is approximately 340.

Other careful tallies land in the same neighbourhood. Mountaineering analyst Alan Arnette, working from the same database, cites 339 deaths through December 2025 — 207 members (clients) and 132 hired workers. Wikipedia's running list, which casts a slightly wider net, gives a figure in the mid-340s. The differences are not contradictions; they come from how each source treats base-camp deaths, support staff, porters on the approach, and a handful of unconfirmed historical cases.

The safe way to state it: around 340 people have died on Everest, split roughly between paying climbers and the Sherpas and other workers who support them.

How many die each year

Annual deaths swing dramatically, because the toll is dominated by weather and by rare mass-casualty disasters rather than a steady background rate.

| Season | Approx. deaths | Notes | |---|---|---| | 2025 | ~5 | All on the Nepal side; several on the upper mountain, some at Base Camp | | 2024 | ~8 | A more typical modern total | | 2023 | ~17–18 | One of the deadliest seasons on record, mostly unrelated incidents | | 2015 | ~19 in one day | Earthquake-triggered avalanche struck Base Camp | | 2014 | 16 in one morning | Icefall avalanche killed Nepali workers |

As the table shows, "how many die each year" has no single answer. A calm season with good weather windows may see only a handful of deaths; a single avalanche or earthquake can cause more fatalities in a morning than several ordinary years combined. Reporting on the 2025 season noted it was markedly less deadly than 2024, with the deaths that did occur split between the high mountain and Base Camp.

The death rate has stayed flat while success soared

One of the most striking facts about Everest is what hasn't changed. Even as the summit success rate roughly doubled over the past three decades, the death rate has stayed broadly flat at about one fatality per hundred summits — a finding highlighted by the University of Washington's coverage of a major 2020 study in PLOS ONE.

Why would success improve so much while danger held steady? Because the same systems that help more people reach the top — fixed ropes, bottled oxygen, Sherpa support, forecasting — mostly raise the summit odds. They do less to remove the irreducible hazards: moving ice, sudden storms, and the simple fact that the human body is failing in the death zone. More people now reach the summit, and a roughly proportional number still do not come back.

The main causes of death

Most Everest fatalities fall into a few categories. We describe these factually, as the hazards a climber faces, without dwelling on individual cases.

Avalanche and icefall

The deadliest single events in Everest's history have been avalanches and serac (ice tower) collapses, particularly in the Khumbu Icefall low on the Nepal route, where the glacier is constantly moving. The 2014 disaster, which killed 16 Nepali workers, and the 2015 earthquake avalanche that struck Base Camp are the clearest examples.

Falls

The upper mountain has steep, exposed sections where a slip can be fatal, especially when climbers are tired or visibility is poor.

Altitude illness — HACE and HAPE

High-altitude cerebral oedema (HACE) and pulmonary oedema (HAPE) — swelling of the brain and fluid in the lungs — are killers high on the mountain. These are the severe end of the same altitude-sickness spectrum that affects trekkers, explained in our altitude sickness guide. In the death zone they can develop and turn fatal with frightening speed.

Exposure and exhaustion

Spending many hours in extreme cold and thin air drains climbers to the point of collapse. Exhaustion, dehydration and cold often combine on long summit days, particularly during descent.

Where deaths happen: the descent and the death zone

A crucial and counter-intuitive pattern: a large share of serious incidents occur on the way down, not on the way up. By the time a climber turns around at the summit, they have already spent hours in the death zone above 8,000 metres, where the body cannot acclimatise and is steadily deteriorating. Judgment dulls, energy is gone, and oxygen may be running low. Small errors that would be trivial lower down become serious.

This is why experienced guides treat the summit as the midpoint of summit day and enforce strict turnaround times. The lower Khumbu Icefall is the other recurring danger zone, hazardous in both directions because of unpredictable ice movement.

How many remain on the mountain

Because recovery from the highest reaches is so dangerous and expensive, many who die high on Everest are not brought down. Outlets including Smithsonian Magazine have reported estimates of more than 200 climbers' remains still on the mountain. The extreme cold, dryness and low pressure preserve the high-altitude environment in a way almost nowhere else on Earth does. In recent years, shifting glaciers have occasionally exposed remains that had long been buried, and recovery operations have brought some down — but the high mountain remains, in effect, beyond reliable reach.

We mention this not for shock value but because it underlines a practical truth: above a certain altitude, rescue and recovery options shrink to almost nothing. Self-sufficiency and good decisions are the only real safety net up there.

Putting the risk in perspective

For travellers, the most important distinction is between climbing Everest and trekking to its base camp. They are not the same activity, and they are not in the same risk category.

• Climbing to the summit enters the death zone, demands technical skill and bottled oxygen, and carries the fatality figures described above.
• Trekking to Everest Base Camp is a strenuous high-altitude walk that tops out well below the death zone. Its main risk is altitude sickness, which is manageable with sensible acclimatisation, and you can read whether you even need a guide for it.

Tens of thousands of trekkers reach Base Camp safely every year. The grim summit statistics belong to a far smaller, far more committed group attempting the climb itself.

The bottom line

Around 340 people have died on Everest in more than a century, the modern annual toll usually sits in the high single digits, and the death rate has held near one per hundred summits even as success rates climbed. The dangers are real and concentrated high on the mountain and on the descent — but they are specific, well-documented, and very different from the risks of simply travelling to the region. Understanding the numbers, rather than fearing a headline, is the first step to respecting the mountain properly.

Sources

• The Himalayan Database (Elizabeth Hawley expedition archive): https://www.himalayandatabase.com/seasonlists.html
• Alan Arnette — Everest by the Numbers: 2026 Edition: https://www.alanarnette.com/blog/2026/01/26/everest-by-the-numbers-2026-edition/
• Wikipedia — List of people who died climbing Mount Everest: https://en.wikipedia.org/wiki/List_of_people_who_died_climbing_Mount_Everest
• University of Washington News — Everest summit success rates double, death rate stays the same: https://www.washington.edu/news/2020/08/26/mount-everest-summit-success-rates-double-death-rate-stays-the-same-over-last-30-years/
• Smithsonian Magazine — on remains left on Mount Everest: https://www.smithsonianmag.com/smart-news/more-than-200-dead-bodies-have-been-left-behind-on-mount-everest-and-many-mark-the-path-to-the-summit-146904416/
• Outside — Mount Everest Deaths in 2025: https://www.outsideonline.com/outdoor-adventure/everest/mount-everest-deaths-2025/