Orleans Parish, Louisiana: History
On April 10, 1805, the Territory of Orleans was divided into 12 counties, including Orleans County. On April 14, 1807, the territory was also divided into 19 civil parishes while keeping the previous system of counties intact. Based on the boundaries and names of earlier ecclesiastical parishes, Orleans County was divided into Orleans, St. Bernard, and Plaquemines parishes, with New Orleans inside the Orleans Parish limits. The county remained responsible for elections and taxation, while the parishes took over responsibility for civil, criminal, probate, and other judicial matters. The system of counties was never explicitly abolished, but the Louisiana Constitution of 1845 dropped any reference to counties and gave their powers to the parishes.
At its establishment, the Orleans Parish government was led by a police jury, which had only limited authority within the city of New Orleans. In 1822, when the police jury began to be elected popularly, the New Orleans City Council was granted a veto over fiscal matters. In 1840, the parish was divided in two along the Mississippi River. A second police jury was established and given authority over Algiers. It was formally named the Police Jury of the Parish of Orleans on the right bank of the River Mississippi. By 1846, the original police jury had become inactive and was abolished, resulting in the consolidation of the left bank with New Orleans. In 1870, the remainder of Orleans Parish was consolidated when the city became coextensive with the parish.
The completion of Chef Menteur Highway in the 1850s connected far-flung communities such as Irish Bayou.