The City of Ponchatoula, Louisiana is the oldest incorporated city in Tangipahoa Parish. Ponchatoula derives its name from the Choctaw Indian language meaning "hair to hang" because of the abundance of Spanish moss on the trees surrounding the area.
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The City of Sulphur is the 13th largest city in Louisiana and is named for the chemical and mining industry that helped to establish Calcasieu Parish in the late 1800's.
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The Town of Walker became a municipality under the Louisiana's Lawrason Act (136 of 1898) on July 9, 1909 as a village.