Welcome to Star Trek Answers. What would you like to know?

Too many hew-mons.

The non-canon book The Worlds of the Federation says Earth's population stabilized at 9 billion, so there's that, plus probably millions more out in space or on colony planets.

I would say billions or possibly trillions off the homeworld

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.