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A total of 116 people have served on the
Supreme Court of the United States The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. Federal tribunals in the United States, federal court cases, and over Stat ...
, the highest judicial body in the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
, since it was established in 1789. Supreme Court justices have
life tenure A life tenure or service during good behaviour is a term of office that lasts for the office holder's lifetime, unless the office holder is removed from office for cause under misbehaving in office, extraordinary circumstances or decides personal ...
, and so they serve until they die, resign, retire, or are
impeached Impeachment is the process by which a legislative body or other legally constituted tribunal initiates charges against a public official for misconduct. It may be understood as a unique process involving both political and legal elements. In ...
and removed from office. For the 107 non-incumbent justices, the
average In ordinary language, an average is a single number taken as representative of a list of numbers, usually the sum of the numbers divided by how many numbers are in the list (the arithmetic mean). For example, the average of the numbers 2, 3, 4, 7 ...
length of service was 6,203 days (16 years, 359 days). The longest serving justice was William O. Douglas, with a tenure of 13,358 days (). The longest serving Chief Justice was
John Marshall John Marshall (September 24, 1755July 6, 1835) was an American politician and lawyer who served as the fourth Chief Justice of the United States from 1801 until his death in 1835. He remains the longest-serving chief justice and fourth-longes ...
, with a tenure of 12,570 days ().
John Rutledge John Rutledge (September 17, 1739 – June 21, 1800) was an American Founding Father, politician, and jurist who served as one of the original associate justices of the Supreme Court and the second chief justice of the United States. Additio ...
, who served on the Court twice, was both the shortest serving
associate justice Associate justice or associate judge (or simply associate) is a judicial panel member who is not the chief justice in some jurisdictions. The title "Associate Justice" is used for members of the Supreme Court of the United States and some sta ...
, with a tenure of 383 days (), and the shortest serving chief justice, with a tenure of 138 days (). Among the current members of the Court,
Clarence Thomas Clarence Thomas (born June 23, 1948) is an American jurist who serves as an associate justice of the Supreme Court of the United States. He was nominated by President George H. W. Bush to succeed Thurgood Marshall and has served since 1 ...
's tenure of days () is the longest, while
Ketanji Brown Jackson Ketanji Onyika Brown Jackson ( ; born September 14, 1970) is an American jurist who serves as an associate justice of the Supreme Court of the United States. Jackson was nominated to the Supreme Court by President Joe Biden on February 25, 202 ...
's days () is the shortest. The table below ranks all United States Supreme Court Justices by time in office. For five individuals confirmed for associate justice, and who later served as chief justice—
Charles Evans Hughes Charles Evans Hughes Sr. (April 11, 1862 – August 27, 1948) was an American statesman, politician and jurist who served as the 11th Chief Justice of the United States from 1930 to 1941. A member of the Republican Party, he previously was the ...
,
William Rehnquist William Hubbs Rehnquist ( ; October 1, 1924 – September 3, 2005) was an American attorney and jurist who served on the U.S. Supreme Court for 33 years, first as an associate justice from 1972 to 1986 and then as the 16th chief justice from ...
, John Rutledge, Harlan F. Stone, and
Edward Douglass White Edward Douglass White Jr. (November 3, 1844 – May 19, 1921) was an American politician and jurist from Louisiana. White was a U.S. Supreme Court justice for 27 years, first as an associate justice from 1894 to 1910, then as the ninth chief ...
—their cumulative length of service on the Court is measured. The basis of the ranking is the difference between dates; if counted by number of calendar days all the figures would be one greater, with the exception of Charles Evans Hughes and John Rutledge, who would receive two days, as each served on the Court twice (their service as associate justice and as chief justice was separated by a period of years off the Court). The ''start date'' given for each justice is the day they took the prescribed
oath Traditionally an oath (from Anglo-Saxon ', also called plight) is either a statement of fact or a promise taken by a sacrality as a sign of verity. A common legal substitute for those who conscientiously object to making sacred oaths is to g ...
of office, with the ''end date'' being the date of the justice's death, resignation, or retirement. A highlighted row indicates a justice currently serving on the Court.


Justices by time in office


Notes


See also

*
List of justices of the Supreme Court of the United States The Supreme Court of the United States is the highest-ranking judicial body in the United States. Its membership, as set by the Judiciary Act of 1869, consists of the chief justice of the United States and eight associate justices, any six of ...
* List of law schools attended by United States Supreme Court justices * List of justices of the Supreme Court of the United States by seat *
List of United States federal judges by longevity of service This is a list of Article III United States federal judges by longevity of service. The judges on the lists below were presidential appointees who have been confirmed by the Senate, and who served on the federal bench for over 40 years. It inclu ...


References

{{SCOTUS horizontal United States, Supreme Court, Justices
Time in office Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, t ...