The answer depends on many factors. While there generally is no set number (NBA teams are always signing/waiving players throughout the year), "professional" can refer to more than just the NBA.
A list of some leagues that are considered professional:
Whether we are counting all United States born basketball players or just those currently in the United States, as well as those who were born outside of the United States that are playing in the United States can bring about a wide variety of answers.
If you are referring to NBA players only, the best guess would be about 420 NBA players (30 teams with a maximum of 15 players, and one roster spot is usually left open).
Chat with our AI personalities