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.