Country Coat of arms Flag Capital Independence Area (km²) Area (mi²) Population Density (pop./km²) Density (pop./mi²) Date Population source Russia (The Russian Federation) Moscow 1991-12-12[7] 17,098,242 6,601,668 146,880,432 8.59 22.2 January 1, 2018 Official estimate Ukraine[8] Kyiv 1991-08-24 603,628 233,062 45,377,581 75 194 April 1, 2014 Monthly official estimate Belarus (Republic of Belarus) Minsk 1991-08-25 207,600 80,155 9,765,469 46 119 July 1, 2014 Quarterly official estimate Uzbekistan (Republic of Uzbekistan) Tashkent 1991-08-31 444,103 171,469 30,492,800 69 179 January 1, 2014 Official estimate Kazakhstan (Republic of Kazakhstan) Nur-Sultan 1991-12-16 2,724,900 1,052,090 17,186,000 6.31 16 February 1, 2014 Monthly official estimate Georgia Tbilisi 1991-04-09 69,700 26,911 4,490,500 64 166 January 1, 2014 Official estimate Azerbaijan (Republic of Azerbaijan) Baku 1991-08-30 86,600 33,436 9,477,100 109 282 December 31, 2013 Official estimate Lithuania (Republic of Lithuania) Vilnius 1918-02-16 (current) 1990-03-11 (restored) 65,300 25,212 2,944,459 45 117 January 1, 2014 Monthly official estimate Moldova (Republic of Moldova) Chișinău 1991-08-27 33,843 13,067 3,550,900 105 272 January 1, 2017 Official estimate Latvia (Republic of Latvia) Riga 1918-11-18 (current) 1991-08-21 (restored) 64,562 24,928 2,005,200 31 80 January 1, 2014 Monthly official estimate Kyrgyzstan (Kyrgyz Republic) Bishkek 1991-08-31 199,945 77,199 5,895,100 29.5 76 2015 Official estimate Tajikistan (Republic of Tajikistan) Dushanbe 1991-09-09 143,100 55,251 8,160,000 57 148 January 1, 2014 Official estimate Armenia (Republic of Armenia) Yerevan 1991-09-21 29,743 11,484 3,024,100 102 264 2012 Official estimate Turkmenistan (Republic of Turkmenistan) Ashgabat 1991-10-27 491,210 189,657 5,240,000 10.7 27.7 July 1, 2013 UN estimate Estonia (Republic of Estonia) Tallinn 1918-02-24 (current) 1991-08-20 (restored) 45,339 17,505 1,313,271 29 75 January 1, 2015 Official estimate Total overall of the former USSR Moscow 1991-12-26 22,307,815 8,613,096 292,610,734 13.1 34 Various Dates Various Sources