Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Vatican City Vatican City State Stato della Città del Vaticano Europe 800 March 1, 2011 0.00001%
No 2 Nauru
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Nauru Republic of Nauru Ripublikee Naoero Oceania 9,322 July 1, 2012 0.00014%
No 3Tuvalu
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Tuvalu Same as above Same as above Oceania 10,544 July 1, 2012 0.00014%
No 4 Palau
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Palau Republic of Palau Beluu ęr a Belau Oceania 21,000 July 1, 2012 0.0003%
No 5San Marino
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
San Marino Republic of San Marino Repubblica di San Marino Europe 32,312 March 31, 2012 0.00046%
No 6 Monaco
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Monaco Principality of Monaco Principauté de Monaco Europe 35,881 July 1, 2010 0.00051%
No 7Liechtenstein
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Liechtenstein Principality of Liechtenstein Fürstentum Liechtenstein Europe 36,476 December 31, 2011 0.00052%
No 8 Saint Kitts and Nevis
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Saint Kitts and Nevis Federation of Saint Kitts and Nevis Same as above North America 54,000 July 1, 2012 0.00077%
No 9 Marshall Islands
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Marshall Islands Republic of the Marshall Islands Aolepān Aorōkin M̧ajeļ Oceania 54,305 July 1, 2010 0.00077%
No 10Dominica
Country name Country official name (In English) Country official name (In local language) Country continent Total population Census date % of world population
Dominica Commonwealth of Dominica Same as above North America 71,293 May 14, 2011 0.001%