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In page Irkutsk:

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The population has been shrinking since the late 1980s: 587,891 (2010 Census);[3] 593,604 (2002 Census);[4] 622,301 (1989 Soviet census).[5]. According to the regional plan, Irkutsk city will be combined with its neighboring industrial towns of Shelekhov and Angarsk to form a metropolitan area with a total population of over a million.[citation needed]