How many people die on Kilimanjaro each year?

Short answer: nobody publishes a running count, and every figure you see online descends from two hospital studies in Moshi. Those studies put the tourist death rate at between 1 in 7,300 and 1 in 4,350 climbs. At today's volume of roughly 50,000 to 60,000 climbers a year, that works out to somewhere around 7 to 13 tourist deaths a year, and that is an estimate, not a statistic. Porters and guides, who outnumber clients about three to one on the mountain, are counted by nobody at all.

This page traces every number to where it came from, says which ones are measured and which are guesses, and then explains what actually kills people on Kilimanjaro, because the causes are more useful than the total.

Where the numbers come from

Tanzania requires a post-mortem when a foreign tourist dies, and those post-mortems happen at the Kilimanjaro Christian Medical Centre (KCMC) in Moshi. That single administrative fact is the reason any mortality data exists. Two research teams have gone through the KCMC records.

The 1996 to 2003 series is the one quoted everywhere as "13.6 per 100,000". It is the older and smaller number. The 2016 to 2017 series is peer-reviewed, more recent, and shows a higher rate; its authors put the rise down to far more people climbing, many of them on short itineraries. Both series count tourists only.

Two things to hold onto from the table. First, in the modern series nine in ten deaths were altitude illness, and three quarters were HAPE alone, which is fluid in the lungs and is survivable by descending. Second, of the 21 people in the 2016 to 2017 post-mortem series, 20 were men, with a mean age of 48. Across both series about 80 percent of the dead were male.

Where "3 to 10 deaths a year" comes from

Search this question and most results say "3 to 10 deaths per year", "about 10 per year" or "0.03 percent". We could not find a primary source for any of those. The pages that quote them cite "Tanzanian authorities" or "TANAPA incident reports" without a link, and when readers ask for the source in comments, none appears. Neither Kilimanjaro National Park (KINAPA) nor TANAPA publishes an annual death count.

The arithmetic behind the figure is easy to reconstruct: take the 13.6 per 100,000 rate and multiply by the 30,000 to 50,000 climbers of the 2010s, and you get 4 to 7 a year. Add a rough allowance for crew and round up, and you have "up to 10". It is not a wrong number, it is a derived one, frozen at a climber count that is now a decade out of date and at a mortality rate that the newer study suggests is too low.

Our own version of the same sum, stated as what it is: TANAPA reported 63,000 visitors to the park in the 2023/24 financial year, up from 53,000 the year before (Pan African Visions, 23 May 2025). Some of those are not summit climbers, so call it 50,000 to 60,000 climbers. At 13.6 to 23 per 100,000, that is roughly 7 to 13 tourist deaths a year. We would not be surprised if the truth sat outside that range, in either direction.

The people nobody counts

Around three crew members work for every client on a camping route, so on any given day porters, cooks and guides are about three quarters of the people on the mountain. No post-mortem requirement applies to them, and no organisation, official or otherwise, publishes a porter death count.

What exists is testimony. Operators who have written about it describe porter deaths every year, mainly from hypothermia and from untreated altitude illness, at the cheap end of the market where crews sleep in inadequate shelter and climb in borrowed or missing gear. One long-established guidebook author's estimate is that porter deaths run at about the same number as tourist deaths; one large operator says "dozens" a year. Neither figure is checkable, and we present neither as fact. The point is narrower: every "deaths on Kilimanjaro" figure you have ever read is a tourist-only figure, and the missing half of it is the half your booking decision influences most directly. How porters are treated, and how to check covers that decision; the KPAP partner list is the shortcut.

A 2019 to 2020 cohort study of 1,237 hikers and 266 porters and guides found severe altitude symptoms in 8.6 percent of hikers and 1.5 percent of crew (Croughs and colleagues, Journal of Travel Medicine, 2022). Crew are better acclimatised. The porter hazard is exposure and equipment, not the altitude itself, which is exactly why it is preventable and why it correlates so closely with what an operator pays and provides.

What actually kills people

Altitude illness, overwhelmingly. HAPE (fluid in the lungs) and HACE (swelling of the brain) caused 56 percent of deaths in the older series and 90 percent in the newer one. Both conditions announce themselves: breathlessness at rest, a wet cough, confusion, loss of coordination. Both are treated by going down, and both kill when the person keeps going up. A 2022 cohort study found that most hikers with symptoms continued ascending, that stopping with mild symptoms was protective, and that inadequate pre-climb guidance was itself a risk factor. That is the entire safety argument in one paragraph: altitude sickness, explained.

Hearts. Four or five of the 25 deaths in the 1996 to 2003 series were cardiac, at ages up to 74. The mountain attracts fit-looking people in their fifties and sixties attempting a bucket-list item, and altitude loads the cardiovascular system hard. A British climber died of a heart attack minutes after summiting in October 2011. A pre-climb medical review is not bureaucracy for anyone over fifty.

Rockfall on the Western Breach. The one route-specific trauma cluster. On 4 January 2006 a rockfall at Arrow Glacier camp killed three American climbers and injured five; the route was closed and later reopened. In September 2015 another rockfall on the same approach killed one American climber. The Western Breach is not on any standard itinerary and is a specialist choice; the six main routes have no equivalent hazard (the routes compared).

Falls, pneumonia and the rest. Three trauma deaths and two pneumonia deaths in the older series, one trauma death in the newer one. Hypothermia does not appear as a primary cause in either tourist series. It is a porter cause.

The rescue itself. On 25 December 2025 a rescue helicopter crashed at about 4,700 m between Barafu Camp and Kibo during a medical evacuation, killing the pilot, a doctor, a guide and two clients, Czech and Zimbabwean nationals. Tanzania's civil aviation authority is investigating; treat any stated cause as pending. It was the mountain's worst single incident in two decades, and it was not an altitude death.

How the risk compares

Rates below use different denominators, which matters. Kilimanjaro's is per tourist climber; Everest's is per summit; Denali's is per attempt.

So a Kilimanjaro climb carries roughly the risk of a trekking holiday in Nepal, several times the risk of a year of scuba diving, about a third of the risk of Aconcagua, and a small fraction of the risk of Denali or Everest. It is also, per climb, in the same range as a year of driving on Tanzanian roads. None of these comparisons should reassure a fifty-five-year-old man planning a five-day Marangu climb, because the averages are made of people who took more days and fewer risks than that.

What moves the risk

The averages hide a split. The people who die are disproportionately those who climbed fast, ignored symptoms, or carried a heart problem up the mountain. What the evidence says helps:

• Days. A 2010 study found acute mountain sickness in 47 percent of climbers at 4,730 m on the standard Marangu pace; a 2012 study of a six-day Machame climb found it in 86 percent on summit day, with HACE in 4 of 28 climbers. Longer itineraries predicted summit success in the 2022 cohort. Eight days on Lemosho is the itinerary this site keeps recommending for a reason: how many days you need.
• Turning around. Stopping with mild symptoms was protective in the 2022 cohort; continuing was the norm. The guide's descent order is the single most important safety instruction on the mountain, and an operator whose guides are paid on summit rate has a conflict of interest with it.
• Screening. A frank conversation with your doctor if you are over fifty or have any cardiac history. This page is context, not medical advice.
• Monitoring. Twice-daily pulse oximeter checks and bottled oxygen for descent are now the standard of a serious operator. No Kilimanjaro-specific study proves they cut mortality, but they turn a guess about someone's lungs into a number, and we would not climb with an operator that lacks them. Oxygen and safety equipment, what to ask.
• Diamox. Evidence is mixed at fast ascent rates and favourable in the 2022 cohort. It helps some people; it does not replace days. Should you take it?

Rescue and insurance

There is a helicopter medevac service based in Moshi, authorised by TANAPA, whose highest landing zone is around 4,900 m at Kosovo Camp; above that, a rescue is a stretcher carry. It reports up to five flights a day in peak season but publishes no annual total. An uninsured flight costs several thousand dollars. The mandatory $20 park rescue fee covers a ground vehicle at the gate, not a helicopter.

Since January 2026 mainland Tanzania also requires most foreign visitors to buy a $44 government entry insurance. Nothing we have read confirms it pays for high-altitude helicopter evacuation, and we would not rely on it to. You need a policy that names trekking to 6,000 m and helicopter evacuation explicitly: how to read one before you buy.

Questions people ask

How many people die on Kilimanjaro each year? No official count is published. The two post-mortem studies from KCMC Moshi give tourist death rates of 13.6 per 100,000 climbers (1996 to 2003) and 23 per 100,000 (2016 to 2017). At 50,000 to 60,000 climbers a year that implies roughly 7 to 13 tourist deaths, an estimate. Porter and guide deaths are not counted by anyone.

What is the death rate on Kilimanjaro? Between about 1 in 7,300 and 1 in 4,350 climbs for tourists, depending on which study period you use. The more recent, peer-reviewed figure is the higher one.

Is Kilimanjaro dangerous? Per climb it is about as risky as a trekking holiday in Nepal and far safer than Aconcagua, Denali or Everest. The risk is concentrated in short itineraries, ignored symptoms and unscreened heart conditions, all of which the climber and the operator control. Our full safety assessment.

What is the most common cause of death on Kilimanjaro? High-altitude pulmonary oedema, HAPE. It caused 16 of 21 deaths in the 2016 to 2017 series and is treated by descending. Cardiac events are the main non-altitude cause among tourists; hypothermia is the recurring cause among porters.

How many porters die on Kilimanjaro? Nobody knows, because nobody counts. Operators and porter-welfare groups describe deaths every year from hypothermia and untreated altitude illness, concentrated at the cheapest end of the market. Booking a monitored operator is the one lever a climber has on that number.

Is Kilimanjaro more dangerous than Everest? No, by a wide margin. Everest runs at about one death per hundred summits; Kilimanjaro at about one to two per ten thousand climbs. Kilimanjaro kills more people in absolute terms some years only because fifty times as many people climb it.

Sources, read 4 September 2026: Dekker et al., "Altitude-Related Disorders on Mount Kilimanjaro, Tanzania: Two-Year Survey in a Local Referral Center", Wilderness & Environmental Medicine 32(1), 2021; Hauser et al., KCMC post-mortem series 1996 to 2003, as cited by Dekker et al. and reproduced by operator pages (we have not located the original publication and say so); Croughs et al., Journal of Travel Medicine 29(5), 2022; Jackson et al., High Altitude Medicine & Biology 11(3), 2010; Meyer, High Altitude Medicine & Biology 13(4), 2012; Brillhart et al., Wilderness & Environmental Medicine 36(3), 2025; McIntosh et al., Wilderness & Environmental Medicine, 2008; Shlim and Gallie, International Journal of Sports Medicine 13, 1992; Himalayan Database via alanarnette.com, January 2026; Divers Alert Network annual report; WHO Global Health Observatory; TANAPA visitor figures via Pan African Visions, 23 May 2025; NBC News and Associated Press, 5 January 2006; National Geographic, 2 August 2016; eTurboNews, 5 October 2011; Al Jazeera and Anadolu, 25 December 2025; The Citizen, 5 July 2025 on the $44 insurance. Where a figure is our own arithmetic, the text says so.