According to the best predictive statistics we have, Earth's population will level off in the 10 billion range. Most planet populations in ST are smaller than Earth's. So I'd say maybe 2 billion average. 150x2 billion. 300,000,000,000
In The Last Outpost. The E-D crew were fascinated with the T'Kon Empire which had a population in the trillions. So I would say the UFP does not number anywhere near that yet.
The galaxy as a whole? Easily in the many trillions.
In The Last Outpost. The E-D crew were fascinated with the T'Kon Empire which had a population in the trillions. So I would say the UFP does not number anywhere near that yet.
The galaxy as a whole? Easily in the many trillions.