<Ul> <Li> The European Union is a sui generis supranational union possessing "country - like" characteristics . The entity is composed of 28 member countries . Its population density has been estimated at 116 people per km, and it would be ranked 95th if it were included in the list . (population: 506,913,394 on January 1, 2014, area: 4,324,782 km). See also: List of regional organizations by population . </Li> <Li> The most densely populated sovereign nation is Monaco, with a population density of 18,713 people / km . </Li> <Li> Area includes land and water . </Li> </Ul> <Li> The European Union is a sui generis supranational union possessing "country - like" characteristics . The entity is composed of 28 member countries . Its population density has been estimated at 116 people per km, and it would be ranked 95th if it were included in the list . (population: 506,913,394 on January 1, 2014, area: 4,324,782 km). See also: List of regional organizations by population . </Li> <Li> The most densely populated sovereign nation is Monaco, with a population density of 18,713 people / km . </Li> <Li> Area includes land and water . </Li>

Country with highest population density per square mile