Population in largest city rose 0.261% to 1.28 mil in Bulgaria in 2021, according to the National Statistical Office.
Historically, population in largest city in Bulgaria reached an all time high of 1.28 mil in 2021 and an all time low of 0.708 mil in 1960. When compared to Bulgaria's main peers, population in largest city in Greece amounted to 3.15 mil, 1.79 mil in Romania, 1.40 mil in Serbia and 15.4 mil in Turkey in 2021.
Bulgaria has been ranked 110th within the group of 153 countries we follow in terms of population in largest city, 12 places below the position seen 10 years ago.
| Population in the Largest City | Unit | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
| Albania | mil | 0.449 | 0.458 | 0.467 | 0.476 | 0.485 | ||||||||||||||||
| Bosnia and Herzegovina | mil | 0.342 | 0.342 | 0.343 | 0.343 | 0.343 | ||||||||||||||||
| Bulgaria | mil | 1.26 | 1.26 | 1.27 | 1.27 | 1.28 | ||||||||||||||||
| Croatia | mil | 0.687 | 0.686 | 0.686 | 0.686 | 0.685 | ||||||||||||||||
| Greece | mil | 3.16 | 3.16 | 3.16 | 3.16 | 3.15 | ||||||||||||||||
| Hungary | mil | 1.75 | 1.75 | 1.75 | 1.76 | 1.76 | ||||||||||||||||
| Iran | mil | 8.56 | 8.67 | 8.78 | 8.90 | 9.01 | ||||||||||||||||
| Iraq | mil | 6.35 | 6.50 | 6.65 | 6.81 | 6.97 | ||||||||||||||||
| Macedonia | mil | 0.560 | 0.568 | 0.576 | 0.584 | 0.590 | ||||||||||||||||
| Moldova | mil | 0.526 | 0.521 | 0.515 | 0.510 | 0.504 | ||||||||||||||||
| Romania | mil | 1.85 | 1.84 | 1.83 | 1.82 | 1.81 | ||||||||||||||||
| Serbia | mil | 1.37 | 1.38 | 1.38 | 1.39 | 1.39 | ||||||||||||||||
| Turkey | mil | 14.1 | 14.3 | 14.5 | 14.8 | 15.0 | ||||||||||||||||
| Ukraine | mil | 2.89 | 2.92 | 2.94 | 2.96 | 2.97 |
Helgi Library 
