Its population, as of the , is 237,751 inhabitants. If its suburbs are included, this figure rises to around 300,000. The current mayor is Jose Luis Martiarena.
Jujuy is located on the Andes, at the junction of the Río Xibi Xibi and Río Grande de Jujuy rivers, 1238 meters above sea level. The weather is humid during the Summers and dry and cold during the winters. The temperature difference between night and day is particularly wide.
San Salvador is above all the provincial administrative and cultural centre; the economical activities take place in other points of the province, including petroleum extraction and pre-processing, sugarcane and sugar industry (Ledesma), tobacco (El Carmen, 10 km south), steel industry (Palpalá), citrus, and fruits and vegetables for local consumption.
The city has a colonial city centre including the Cabildo, the Cathedral, and a specially colourful Andean carnivals. The population of the city, and of the province in general, has a much more aboriginal character than the in rest of the country, reflected in the predominant Quechua, Aymara and Chiriguano people and cultures.