The Global Environment Facility said as of November 2026 that there is no accurate, range-wide count of snow leopards; its page cites a 2013 estimate of 3,920 to 6,390. The Population Assessment of the World's Snow Leopards (PAWS) uses interviews, sign surveys and camera traps to map where snow leopards live, then counts them in sample areas. In 2019 Snow Leopard Trust reported research finding that less than 1 percent of snow leopard habitat had been surveyed with reliable scientific methods. A snow leopard researcher said earlier population studies often had sampling bias, with small, high-density areas leading to inflated estimates.

Camera-trap surveys identify individual snow leopards by the spot patterns on their coats, and camera trapping is one of the scientifically robust methods of studying how many snow leopards live in an area. The PAWS survey guidelines say, as of October 2024, that camera-trap population studies need to cover at least 500 square kilometres, which is hard to do in Nepal's Himalayas. In 2024 a Nepali snow leopard researcher said about 50 percent of potential snow leopard habitat in Nepal had been covered by at least one camera-trap or genetic study. Researchers say the final snow leopard count in Nepal will remain an educated guess because the cat is so hard to track.

In a simulation for Mongolia's Tost Mountains, researchers found snow leopard density appears to be around 0.8 cats per 100 square kilometres. In March 2021 the Snow Leopard Trust reported a preliminary estimate from a three-year survey: about 953 snow leopards in Mongolia, with final results still to come. The survey used nearly 1,500 camera traps and identified over 250 individuals. The IUCN moved the snow leopard from Endangered to Vulnerable in 2017, and the Snow Leopard Trust describes that change in status as a non-genuine change, because it came from a revised estimate of mature individuals and did not reflect a measurable improvement. As of November 2026, the best guess in the latest IUCN assessment was that 2,710 to 3,386 mature, or grown-up, snow leopards remain in the wild, and the IUCN expects a 10% decline over the next three generations, about 22.6 years.

A 2025 study in Science Advances found five valid fossil records of the snow leopard lineage outside Tibet, and the same study suggests that snow leopards dispersed out of the Tibetan Plateau multiple times during the Quaternary. Fossils and the family tree suggest that the snow leopard's adaptation to its mountain home grew gradually stronger over time. The authors argue that local landscape features matter more than temperature and altitude alone in where snow leopards live. Snow leopards are thought to be more closely related to the tiger than to the leopard. Scientists now call the snow leopard Panthera uncia; it has also been called Uncia uncia and Felis uncia.

A study in Mongolia's South Gobi put GPS collars on 16 snow leopards between 2008 and 2014, and the collars logged each cat's location about four times a day for over a year. Males had home ranges of about 80 square miles and females about 48 square miles, much larger than earlier estimates. In an area of western Nepal with plenty of prey, the average home range was 12 to 39 square kilometres, and scientists think the true size is probably 20 to 30 percent larger because of the steep ground. Where wild prey is plentiful, snow leopards can live on home ranges as small as 30 to 65 square kilometres. Snow leopards that share an area keep about 2 kilometres from the nearest other snow leopard.

The 12 snow leopard range countries adopted the Bishkek Declaration at a conference in Bishkek in 2013 and set an initial goal to secure at least 20 snow leopard landscapes by 2020. As of November 2026, the range countries have identified a total of 24 landscapes to secure. About 40 percent of the 170 protected areas across the snow leopard's range are smaller than the space one adult male needs. A 2012 study published in Biological Conservation found that about 30 percent of snow leopard habitat in the Himalayas may be lost as the treeline shifts upward with climate change. The snow leopard has been on Appendix I of CITES, which controls the trade in wild animals, since 1975.

Snow leopards are rock specialists, usually found in rugged areas, and the climate where they live is cold and dry. The snow leopard is more inclined than other large cats to chase its prey, using agility across slopes, and it can take prey that is two to three times its own weight. The three most important prey animals for snow leopards are the blue sheep (also called bharal), the Asiatic ibex and the argali. Snow leopards hunt a large animal about every 8 to 10 days on average, and one blue sheep in Nepal will give one snow leopard food for a week. A snow leopard has round, short ears that reduce heat loss, and its fur is the densest and longest of all the big cats.

A female snow leopard mates every second year, because she spends a long time raising her cubs. Snow leopards mate between January and mid-March, and a mother snow leopard is pregnant for about three months. She has her cubs in a sheltered rocky den, and she usually has two or three cubs in a litter. A cub's eyes open when it is about seven days old, and the cubs are much darker than their mother. A cub is ready to eat solid food at two months old and begins to follow its mother and learn to hunt at three months old. Cubs leave their mother when they are 18 to 22 months old, and snow leopards in the wild are thought to live about ten to twelve years.

Words to know

• lineage: family line
• Quaternary: a time period
• bias: a built-in tilt
• inflated: too high
• mature: grown-up
• treeline: the tree limit