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Federal Judicial Circuits: Ninth Circuit

  • 1837: Alabama, Arkansas, Louisiana, Mississippi. (5 Stat. 176)
  • 1842: Arkansas, Mississippi. (5 Stat. 507)
  • 1862: Iowa, Kansas, Minnesota, Missouri. (12 Stat. 576)
  • 1866: California, Nevada, Oregon. (14 Stat. 209)
  • 1889: California, Montana, Nevada, Oregon, Washington. (25 Stat. 676)
  • 1890: California, Idaho, Montana, Nevada, Oregon, Washington. (26 Stat. 215)
  • 1900: Territory of Alaska, California, Territory of Hawaii, Idaho, Montana, Nevada, Oregon, Washington. (31 Stat. 141, 31 Stat. 321)
  • 1912: Territory of Alaska, Arizona, California, Territory of Hawaii, Idaho, Montana, Nevada, Oregon, Washington. (36 Stat. 557)
  • 1951: Territory of Alaska, Arizona, California, Territory of Guam, Territory of Hawaii, Idaho, Montana, Nevada, Oregon, Washington. (65 Stat. 723)
  • 1959: Alaska, Arizona, California, Territory of Guam, Hawaii, Idaho, Montana, Nevada, Oregon, Washington. (72 Stat. 339, 73 Stat. 4)
  • 1977: Alaska, Arizona, California, Territory of Guam, Hawaii, Idaho, Montana, Nevada, Territory of the Northern Mariana Islands, Oregon, Washington. (91 Stat. 1265)