Sofia Master PlanArchived 2012-04-02 at the Wayback Machine, Sofia Metro Area - 1,280,000 in 2001 and 1,450,000 in 2020, equal to 1,378,000 in 2012; Sofia Metro Region - 1,435,000 in 2001 and 1,540,000 in 2020, equal to 1,495,000 in 2012
Sofia Master PlanArchived 2012-04-02 at the Wayback Machine, Sofia Metro Area - 1,280,000 in 2001 and 1,450,000 in 2020, equal to 1,378,000 in 2012; Sofia Metro Region - 1,435,000 in 2001 and 1,540,000 in 2020, equal to 1,495,000 in 2012