The following table shows the change of the population during the last four decades.
Ugarchin Municipality
Year
1975
1985
1992
2001
2005
2007
2009
2011
Population
15,430
12,404
10,816
8,561
7,869
7,544
7,181
...
Sources: Census 2001,[2] Census 2011,[3] „pop-stat.mashke.org“,[4]
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:
Religious composition of Ugarchin Municipality [5]