U.S. Circuit and District Court Judges: Profile of Select Characteristics [August 01, 2017] [open pdf - 1MB]
"This report provides a profile of select demographic and background characteristics of active judges currently serving on the U.S. courts of appeals and U.S. district courts. Specifically, for active circuit and district court judges serving as of June 1, 2017, this report provides a statistical breakdown of these judges' gender; race; gender and race, combined; current age; age at the time of their appointment to the bench; length of service; and professional occupation or position at the time of their appointment. A statistical breakdown of these select demographic and background characteristics is provided first for active U.S. circuit court judges, followed by the same information for active U.S. district court judges."
CRS Report for Congress, R43426
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html