It continues as weekly until ca. A Police Jury votes to completely replace Perry's bridge. 1850 directed the State Engineer to ascertain the land contained in the proposed Parish of Iberia, to be created from parts of St. Martin and St. Mary Parishes. 3rd Legislature No. 297. By this year cattle rustling is so prevalent in the Attakapas country that the ranchers form vigilance committees.
Many rustlers are exiled to Texas until after the war.
After the civil war the vacheries were bare and much of the land is transformed into rice fields. That from and after the passage of this act there shall be a new parish formed from a portion of the north part of the parish of St. Mary, to be called and known by the name of the Parish of Iberia. Nineteenth century maps locate a missing member of the original Attakapas County. Thus five parishes and a portion of another all evolved from the land originally part of the Poste des Attakapas. 1870 Cameron parish is formed, including in its boundary, a portion of Vermilion parish that was formaerly a part of Attakapas County.