The district with the lowest population density in India is Leh, located in the Union Territory of Ladakh, with a population density of around 3 people per square kilometer as per the 2011 Census. Spread over an expansive area of more than 45,000 square kilometers, Leh is situated in the high-altitude Himalayan region. Its extreme weather, rugged terrain, and harsh living conditions contribute to its sparse population. Despite its low density, Leh holds significant geopolitical and cultural importance.

Leh is a land of breathtaking landscapes, Buddhist monasteries, and a peaceful way of life. The district is inhabited primarily by ethnic Ladakhis who follow Tibetan Buddhism, and the culture is deeply spiritual and community-oriented. Tourism has become a major economic activity, with visitors drawn to its serene beauty, trekking routes, and historical sites. Although infrastructure is developing steadily, challenges like limited accessibility during winters and fragile ecosystems remain critical areas of focus.