Аccording to the 2020 Bulgarian census, Studena has a population of 1740 people with a permanent address registration in the settlement.

The name of the village stems from a story, according to which a Bulgarian freedom fighter along with his troops held the Byzantine empire army for one hundred days at the location before they overtook Sofia.

[2] The initial name of the village was Istudene and can be found in Ottoman text dating back to the 15th century.

The village's festive day is "Arhangelovden" and has been honored each year after the local church had been built.

There is a church "Sveti Georgi" dating back to the 15th century that was renovated and can be visited in the village.