Source: ShikharBhattarai / iStock via Getty Images
5. Sylhet, Bangladesh
> Population density: 78,000 people per square mile
> Population: 1.5 million
> Built-up land area in city: 19 square miles
Source: Denis Vostrikov / iStock via Getty Images
4. Saharanpur, India
> Population density: 80,571 people per square mile
> Population: 1.7 million
> Built-up land area in city: 21 square miles
Source: mtcurado / Getty Images
3. Kinshasa, Dem. Rep. of the Congo
> Population density: 83,644 people per square mile
> Population: 15.1 million
> Built-up land area in city: 180 square miles
Source: By Rishabh Mathur - https://www.flickr.com/photos/rishabh_m/3309328873/, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=77042860 / Wikimedia Commons
2. Moradabad, India
> Population density: 88,450 people per square mile
> Population: 1.8 million
> Built-up land area in city: 20 square miles
Source: Meinzahn / iStock via Getty Images
1. Dhaka, Bangladesh
> Population density: 95,676 people per square mile
> Population: 16.8 million
> Built-up land area in city: 176 square miles
