List of islands by population density Most densely populated islands (over 1,000 people per km²) Most densely populated islands (over 1,000 people per km²)

| Island | Country | Population | Area_km² | Density_per_km² |
|---|---|---|---|---|
| Lilla Essingen ( Stockholm ) | Sweden | 4,647 (2009) | 0.23 | 20204 |
| Tsing Yi | Hong Kong | 200,400 (2007) | 10.69 | 18746 |
| Vasilyevsky Island ( Saint Petersburg ) | Russia | 202,650 (2002) | 10.9 | 18592 |
| Djarrit | Marshall Islands | 7,103 (1999) | 0.389 | 18260 |
| Södermalm (Stockholm) | Sweden | 99,685 (2008) | 5.71 | 17458 |
| Hong Kong Island | Hong Kong | 1,289,500 (2008) | 80.4 | 16038 |
| Sisak Island (Sisak | Croatia | 15,897 (2011) | 1.1 | 15897 |
| Roosevelt Island (New York City) | United States | 9,520 (2000) | 0.6 | 15867 |
| Reimersholme (Stockholm) | Sweden | 2,324 (2006) | 0.16 | 14525 |
| Kungsholmen (Stockholm) | Sweden | 56,754 (2007) | 3.91 | 14515 |
| Lübeck Old Town | Germany | approx. 12,000 | 1.00 | approx. 12,000 |
| Venice Center | Italy | approx. 60,000 | 5.00 | approx. 12,000 |
| Ma Wan | Hong Kong | 11,193 (2007) | 0.96 | 11659 |