#### Answer

The population density of Singapore is 16,513.8 people per square mile. This means that, on average, each square mile of Singapore's land area has 16,513.8 people.

#### Work Step by Step

We can find the population density of Singapore.
$\frac{population}{area} = \frac{4,425,700~people}{268~mi^2} = 16,513.8~people/mi^2$
The population density of Singapore is 16,513.8 people per square mile. This means that, on average, each square mile of Singapore's land area has 16,513.8 people.