It is named after its administrative centre – the village of Vetrino.

The municipality embraces a territory of 293.12 km², bordering the Shumen Province to the west, with a population of 5,702 inhabitants, as of December 2009.

[1] The southern parts of the area is crossed by the east operating part of Hemus motorway which is planned to connect the port of Varna with the country capital – Sofia.

Vetrino Municipality includes the following 10 places, all of them are villages: The following table shows the change of the population during the last four decades.

According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following: A majority of the population of Vetrino Municipality identify themselves as Christians.