if you mean globally, it would be Mexico City, New Dehli, hong Kong, newYork and los Angeles
numbai
The five most densely populated states are New Jersey, Rhode Island, Massachusetts, Connecticut, and Maryland.
Netherlands is the most densely populated country in the world
The most densely populated area in Russia is the city of Moscow and most densely populated area in Europe is the city of Paris.
Honshu is the largest and most densely populated of the Japanese islands. It is home to several major cities including Tokyo, Yokohama, Osaka, and Nagoya.
New Jersey is the United State's most densely populated state.
Metropolitan areas of Pakistan are the most densely areas. Karachi is the most densely populated city of Pakistan.
Arkansas is the 34th most densely populated state in the U.S.
Seoul and some other random one.
The island of Java is the most populated and the most densely populated island of Indonesia. The most dense province in Java is the Jakarta special capital region (DKI Jakarta), the capital city & province of Indonesia.
The most densely populated area in Brazil is called Sao Paulo.
The most densely populated sovereign nation is Monaco, with a population density of 16754.