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 |
|---|---|---|---|---|
| Île Jésus ( Laval ) | Canada | 400,000 (2010) | 245 | 1384 |
| Smögen | Sweden | 1,437 (2005) | 1.04 | 1381 |
| Öckerö | Sweden | 3,269 (2005) | 2.39 | 1368 |
| Mercer Island | United States | 22,699 (2010) | 34.0 | 1333 |
| Île de la Cité (Paris) | France | 1,168 (2007) | 0.9 | 1297 |
| Labuan | Malaysia | 100,000 (2010) | 85 | 1177 |
| Capri | Italy | 12,200 (2002) | 10.4 | 1170 |
| Okinawa Island | Japan | 1,384,762 (2009) | 1207.87 | 1146 |
| Penghu Island | Taiwan | 70,200 (2010) | 64 | 1100 |
| Java | Indonesia | 130,000,000 (2006) | 132187 | 1026 |