Baton Rouge, Louisiana Baton Rouge, Louisiana Baton Rouge ( ; ) is the capital of the U.S. state of Louisiana and its second-largest city. Located on the eastern bank of the Mississippi River, it is the parish seat of East Baton Rouge Parish. As its capital city, Baton Rouge is the political hub of Louisiana. It is the second-largest city in the state, with an estimated population of 227,715 in 2016. The metropolitan area surrounding the city, known as Greater Baton Rouge, is also the second-largest in Louisiana, with a population of 830,480 people as of 2015. The urban area has around 594,309
Constitution of Louisiana April 20, 1974, and became effective on January 1, 1975. The beginning of statehood for Louisiana began with the Louisiana purchase in 1803. In 1804, the land the United States purchased from France was divided in two territories: 1) the Louisiana Territory (upper territory) and 2) the area below the 33rd parallel (current Louisiana-Arkansas state line), the Orleans Territory each as an organized incorporated territory of the United States. The Territory of Orleans formed the bulk of what today is the State of Louisiana. From the beginning there were border disputes. In 1795, the "Treaty of Friendship, Limits, and Navigation