San Román Province in the context of Moquegua Region

Juliaca (Spanish: [xuˈljaka]; Quechua and Aymara: Hullaqa) is the capital of San Román Province in the Puno Region of southeastern Peru. It is the region's largest city, with a population of 276,110 inhabitants (2017). On the Altiplano, Juliaca is 3,825 metres (12,549 ft) above sea level, is located on the Collao Plateau and is northwest of Lake Titicaca (45 km), near Chachas Lake, the Maravillas river, and near the ruins of Sillustani. It is the largest trade center in the Puno region.

The city hosts Carnaval Juliaca each year between February and March. During this very popular event participants, dressed in colorful costumes, gather on the streets to dance in the style of the Collao Plateau. Saint Sebastian's feast is celebrated on 20 January of every year.

Puno is a province in the Puno Region, in southeastern Peru. It borders the provinces of Huancane, San Román, El Collao and the Moquegua Region's province of General Sánchez Cerro. Its capital is the city of Puno, which is located at the edge of Lake Titicaca, the world's highest navigable lake. It is the economic powerhouse of the region.