This depends on which supreme court. Reask your question specifying the state/country, or see related questions. US Supreme Court: There are 9 Justices on the US Supreme Court.
There are 9 members of the Supreme Court of Canada, with one Chief Justice and eight Puisne (junior) Justices. aswell as them wanting there own business so dont ask any more questions about our...
The Florida Supreme Court seats seven justices - one Chief justice and six Associate Justices - who are selected by the Florida Judicial Nominations Commission. They serve six-year terms.