The municipality has a territory of 710.9 km²[2] with a population of 11,681 inhabitants, according to the 2011 census.

[1] The municipality is located mostly on the right bank of the Tundzha river, with the Sakar mountain taking up a large part of its territory.

Topolovgrad municipality has a short border with Turkey to the south.

Topolovgrad Municipality includes the following 21 places (towns are shown in bold): The following table shows the change of the population during the last four decades.

According to the 2011 census,[5] 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: