It is named after its administrative centre, the town of Kaspichan.

The municipality embraces a territory of 279 km2 (108 sq mi) with a population of 8,871 inhabitants as of December 2009.

[1] The area is crossed from east to west by the eastern operating section of Hemus motorway, which is planned to connect the port of Varna with the capital Sofia.

Kaspichan Municipality includes the following 9 places (towns are shown in bold): The following table illustrates the population change over the last four decades.

According to the 2011 census, among those who answered the optional question on ethnic identification, the ethnic composition of the municipality was the following: According to the latest Bulgarian census of 2011, the religious composition, among those who answered the optional question on religious identification, was the following: