Mississippi seceded from the Union on January 9, 1861.

Quick Scoop

  • Mississippi was the second state to leave the United States, following South Carolina’s secession in December 1860.
  • A special secession convention met in Jackson, Mississippi, in early January 1861 to debate and vote on leaving the Union.
  • Delegates voted in favor of secession on January 9, 1861, formally declaring that Mississippi was no longer part of the United States.
  • The official Ordinance of Secession document itself was signed a few days later, on January 15, 1861, but the decision to secede is dated January 9.

In short, when people ask “when did Mississippi secede from the Union,” historians and reference works give the date January 9, 1861.

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