How many justices are on the Supreme Court?

The Supreme Court of the United States is composed of nine justices, which includes one Chief Justice and eight Associate Justices. This number has been established since 1869 and has remained unchanged since then. The Supreme Court has the ultimate authority in interpreting the Constitution and federal law, and its nine-member composition plays a significant role in providing a balance of opinions and judicial review on a wide range of important legal issues. The presence of nine justices allows the Court to function effectively, with a majority required to make decisions, thereby promoting stability in its rulings.