Mississippi Statehood
Mississippi entered the Union as lower-river settlement, cotton expansion, and Gulf access made the Deep South increasingly central to the early nineteenth-century republic.
How This State Entered The Union
Statehood is where constitutional structure meets regional history: the point where a place entered the Union as an equal state.
Admission To The Union
Mississippi became the twentieth state on December 10, 1817, after developing from territorial status along the lower Mississippi system.
Path To Statehood
Its route followed federal territorial administration, rapid southern settlement, and the broader expansion of plantation agriculture into the Gulf South.
Why It Matters
Mississippi matters because it shows how river geography, cotton, slavery, and Gulf access reshaped the Union in the decades before the Civil War.
Read Next
Go back to the state page, then return to the larger constitutional story that made equal state membership possible.
Larger Context
Federalism and the founding era give the admission story its larger constitutional frame.