Dhaka Kotwali Thana, Dhaka, Bangladesh from Most Densely Populated Places on Earth

The dirtiest and probably the worst city in the world is also known as one of the most densely populated cities in the world. For example, this area of Dhaka named Kotwali Thana has an area of 2.07 km2 (0.80 sq. mi) and a population of 210,504 people (which means 101,693 people)/km2.