The following table shows the change of the population during the last four decades.
Byala Municipality
Year
1975
1985
1992
2001
2005
2007
2009
2011
Population
4,346
4,065
3,787
3,413
3,349
3,780
3,729
...
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:
An overwhelming majority of the population of Byala Municipality identify themselves as Christians. At the 2011 census, 75.3% of respondents identified as Orthodox Christians belonging to the Bulgarian Orthodox Church.