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Federal Judicial Circuits: Tenth Circuit
| March 3, 1863 12 Stat. 794 |
Congress established the Tenth Circuit, including California (which had been in the California Circuit) and Oregon (which had not been included in a circuit) in the circuit. | California, Oregon |
| February 27, 1865 13 Stat. 440 |
Congress included Nevada (which had not been included in a circuit) in the Tenth Circuit. | California, Nevada, Oregon |
| July 23, 1866 14 Stat. 209 |
Congress abolished the Tenth Circuit, transferring California, Nevada, and Oregon to the Ninth Circuit. | |
| February 28, 1929 45 Stat. 1347 |
Congress reestablished the Tenth Circuit, including Colorado, Kansas, New Mexico, Oklahoma, Utah, and Wyoming (all of which had been in the Eighth Circuit) in the Tenth Circuit. | Colorado, Kansas, New Mexico, Oklahoma, Utah, Wyoming |