Its area spreads from Provadiya Municipality in the west to the Bulgarian Black Sea Coast in the east. To the south the municipality is mostly defined by the Kamchiya river and its estuary. It embraces a territory of 380 km2 (150 sq mi) with a population, as of December 2009, of 9,089 inhabitants.[1]
The following table shows the change of the population during the last four decades.
Avren Municipality
Year
1975
1985
1992
2001
2005
2007
2009
2011
Population
12,054
9,676
8,817
8,714
9,074
9,064
9,089
...
Sources: Census 2001,[5] Census 2011,[6] „pop-stat.mashke.org“,[7]
Religion
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 Avren Municipality identify themselves as Christians. At the 2011 census, 62.3% of respondents identified as Orthodox Christians belonging to the Bulgarian Orthodox Church. There is a relatively large Muslim minority and a large part did not answer.
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