Mississippi State Capitol, State capitol building in Jackson, United States.

The Mississippi State Capitol is a Beaux-Arts building of Indiana limestone on a Georgia granite base, 402 feet wide and 225 feet deep, with a central dome rising 180 feet. The dome's terra-cotta drum is ringed by a limestone colonnade and topped by an eight-foot copper eagle gilded with gold leaf. Inside, a second-floor rotunda has Italian white marble walls trimmed with Belgian black marble and cast-iron balustrades.

Construction began in 1901 on the site of the former state penitentiary and was completed two years later, funded by taxes from the Illinois Central Railroad. This building replaced an earlier capitol and has served as the home of the state legislature and executive offices ever since.

The building's name comes from the state it serves, and its 1903 opening made it the second capitol on this site's history. The ground-floor Hall of Governors displays portraits from Winthrop Sargent, the first territorial governor, onward. In 2024 Alyce Clarke became the first African American and first woman whose portrait was hung here.

Guided tours run Monday through Friday at set times, while visitors can explore the building on their own between 8 AM and 5 PM. The address is 400 High Street, and the central rotunda is accessible from the main entrance.

The dome's eagle is eight feet tall and fifteen feet wide, made of copper gilded with gold leaf. Inside, architect Theodore Link installed 4,750 electric fixtures, still in use today. The ground-floor Hall of Governors opens with a portrait of Winthrop Sargent, the first territorial governor.