7 sovereign states with the highest population densities

1. Macau (China) - 48,003 people per square mile
2. Monaco - 43,830 people per square mile
3. Singapore - 18,513 people per square mile
4. Hong Kong - 16,444 people per square mile
5. Gibraltar - 11,808 people per square mile
6. Vatican City - 4,861 people per square mile
7. Malta - 3,414 people per square mile