Louisiana

Acadia County (1805 - 1846)
Acadia Parish (1886 - Present)
Allen Parish (1912 - Present)
Allen Parish Proposed (1910 - Present)
Ascension Parish (1807 - Present)
Assumption Parish (1807 - Present)
Attakapas County (1805 - 1846)
Attakapas Parish (1807 - 1811)
Avoyelles Parish (1807 - Present)
Baton Rouge Parish (1807 - Present)
Beauregard Parish (1912 - Present)
Beloxy Parish (1811 - 1812)
Bienville Parish (1848 - Present)
Bossier Parish (1843 - Present)
Caddo Parish (1838 - Present)
Calcasieu Parish (1840 - Present)
Caldwell Parish (1838 - Present)
Cameron Parish (1870 - Present)
Carroll Parish (1832 - 1877)
Catahoula Parish (1808 - Present)
Claiborne Parish (1828 - Present)
Concordia County (1805 - 1846)
Concordia Parish (1807 - Present)
Desoto Parish (1843 - Present)
East Baton Rouge Parish (1810 - Present)
East Carroll Parish (1877 - Present)
East Feliciana Parish (1824 - Present)
Evangeline Parish (1910 - Present)
Feliciana County (1810 - 1846)
Feliciana Parish (1810 - 1824)
Franklin Parish (1843 - Present)
German Coast County (1805 - 1846)
Grant Parish (1869 - Present)
Iberia Parish (1868 - Present)
Iberville County (1805 - 1846)
Iberville Parish (1807 - Present)
Jackson Parish (1845 - Present)
Jefferson Davis Parish (1912 - Present)
Jefferson Parish (1825 - Present)
La Salle Parish (1908 - Present)
Lafayette Parish (1823 - Present)
Lafourche County (1805 - 1846)
Lafourche Interior Parish (1807 - Present)
Lincoln Parish (1873 - Present)
Livingston Parish (1832 - Present)
Madison Parish (1838 - Present)
Morehouse Parish (1844 - Present)
Natchitoches County (1805 - 1846)
Natchitoches Parish (1807 - Present)
Opelousas County (1805 - 1846)
Orleans County (1805 - 1846)
Orleans Parish (1807 - Present)
Ouachita County (1805 - 1846)
Ouachita Parish (1807 - Present)
Pascagoula Parish (1811 - 1812)
Plaquemines Parish (1807 - Present)
Pointe Coupee County (1805 - 1846)
Pointe Coupee Parish (1807 - Present)
Rapides County (1805 - 1846)
Rapides Parish (1807 - Present)
Red River Parish (1871 - Present)
Richland Parish (1868 - Present)
Sabine Parish (1843 - Present)
St Bernard Parish (1807 - Present)
St Charles Parish (1807 - Present)
St Helena Parish (1810 - Present)
St James Parish (1807 - Present)
St John The Baptist Parish (1807 - Present)
St Landry Parish (1807 - Present)
St Martin Parish (1811 - Present)
St Mary Parish (1811 - Present)
St Tammany Parish (1810 - Present)
Tangipahoa Parish (1869 - Present)
Tensas Parish (1843 - Present)
Terrebonne Parish (1822 - Present)
Troy Parish Proposed (1890 - 1890)
Union Parish (1839 - Present)
Vermilion Parish (1844 - Present)
Vernon Parish (1871 - Present)
Warren Parish (1811 - 1814)
Washington Parish (1819 - Present)
Webster Parish (1871 - Present)
West Carroll Parish (1877 - Present)
West Feliciana Parish (1824 - Present)
Winn Parish (1852 - Present)