How many people take up a mile?

Answer 1

The answer will depend on a mile of what? Walking, jogging, running, swimming? The question needs to be more specific.

To suggest two very improbable scenarios ...

If the people are lying down, head-to-toe, down the center of a highway,

then you'd have to expect to use something like 920 people to cover a mile

of white line.

If the people are all lying down side-by-side on the highway, with their hands

at their sides and all of their elbows on the white line, then it would have to be

more like something between 2,200 - 3,000 people per mile.