This map by Datragraver shows a count of people for roughly every square kilometer on Planet Earth. The dark lines you see represent the total amount of people on either that latitude (vertical axis) or longitude (horizontal axis).
The map is an update to the below map from 2000 by Harvard Ph.D. Bill Rankin. The changes compared to 2000 are not that visible. But the Northern hemisphere got an even larger population and there has been a shift to the East.