According to Wikipedia, in the United States, "As of January 2008, federal trial judges were paid $169,300 a year, appellate judges $179,500, associate Supreme Court justices $208,100 and the chief justice $217,400. All were permitted to earn an additional $21,000 a year for teaching." However, Chief justice of the United States, John Roberts, says this is not enough. He is calling for an increase in salary for federal judges, stating that many judges are accepting jobs in the private sector because more money is being offered there.
However, according to CNN, "Some members of Congress are cool to the idea of higher pay for federal judges, who are among the highest paid federal employees. They also enjoy lifetime job security, and can retire at 65 with full salary after 15 years on the job."