Judicial Circuits Act

The Judicial Circuits Act of 1866 (ch. 210, 14 Stat. 209) reorganized the United States circuit courts and provided for the gradual elimination of several seats on the Supreme Court of the United States. It was signed into law on July 23, 1866, by President Andrew Johnson. It denied him the opportunity of appointing any justices to the Supreme Court. It was the first major legislation dealing with the judiciary following the American Civil War.

The Act redrew the boundaries of the judicial circuits and reduced the number of circuits from ten to nine. It also provided for the gradual reduction in the number of seats on the Supreme Court from the ten that had been authorized in 1863 to seven and established in large measure the geographical outlines of the circuits ever since. Although Congress increased the size of the Supreme Court just three years later with the Circuit Judges Act of 1869, the geographical outline of the circuits has only been altered by the addition of new states to circuits and the division of two large circuits in the twentieth century.

After establishing nine circuits in 1837, Congress in 1842 shifted several southern states in order to accommodate transportation routes used by the justices when traveling on circuit. In 1862 Congress incorporated five additional states into a restructured system of nine circuits, and within another year had abolished the California Circuit, placed California and Oregon in a Tenth Circuit, and reorganized the mid-western states. The 1866 Act ended a period in which the arrangement of the states into circuits was frequently reorganized.

The geographical reorganization of the circuits in 1866 coincided with the broader effort of the Republican majority in Congress to reduce what it considered the disproportionate influence the southern states enjoyed before the Civil War. Between 1837 and 1862, five of the nine circuits comprised exclusively slave states. The tradition of appointing a justice from each circuit allowed Southern slaveowners to dominate the Supreme Court. After reducing the number of all-southern circuits in 1862, Congress in 1866 left only two circuits that comprised only former slave states, and only one that comprised only former Confederate states.

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