In 1811, a constitutional convention was held to prepare for Louisiana's admission into the Union.[3] This organized the state into seven judicial districts, each consisting of groups of parishes. In 1816, the first official map of the state used the term, as did the 1845 constitution. Since then, the official term for Louisiana's primary civil divisions has been parishes.
| Parish name
| FIPS code
| Parish seat
| Formed
| Origin
| Area
| Map
|
| Acadia Parish
| 001
| Crowley | 1886 | from part of St. Landry Parish. | 1,703 km² (658 mi²) | Image:Map of Louisiana highlighting Acadia Parish.svg
|
| Allen Parish
| 003
| Oberlin | 1912 | from part of Calcasieu Parish. | 1,983 km² (766 mi²) | Image:Map of Louisiana highlighting Allen Parish.svg
|
| Ascension Parish
| 005
| Donaldsonville | 1807 | One of the original 19 parishes. | &&&&&&&&&&&&0784.&&&&&0784 km² (303 mi²) | Image:Map of Louisiana highlighting Ascension Parish.svg
|
| Assumption Parish
| 007
| Napoleonville | 1807 | One of the original 19 parishes. | &&&&&&&&&&&&0944.&&&&&0944 km² (365 mi²) | Image:Map of Louisiana highlighting Assumption Parish.svg
|
| Avoyelles Parish
| 009
| Marksville | 1807 | One of the original 19 parishes. | 2,242 km² (866 mi²) | Image:Map of Louisiana highlighting Avoyelles Parish.svg
|
| Beauregard Parish
| 011
| DeRidder | 1912 | from part of Calcasieu Parish. | 3,020 km² (1,166 mi²) | Image:Map of Louisiana highlighting Beauregard Parish.svg
|
| Bienville Parish
| 013
| Arcadia | 1848 | from part of Claiborne Parish. | 2,128 km² (822 mi²) | Image:Map of Louisiana highlighting Bienville Parish.svg
|
| Bossier Parish
| 015
| Benton | 1843 | from part Claiborne Parish. | 2,245 km² (867 mi²) | Image:Map of Louisiana highlighting Bossier Parish.svg
|
| Caddo Parish
| 017
| Shreveport | 1838 | from part of Natchitoches Parish. | 2,427 km² (937 mi²) | Image:Map of Louisiana highlighting Caddo Parish.svg
|
| Calcasieu Parish
| 019
| Lake Charles | 1840 | from part of St. Landry Parish. | 2,834 km² (1,094 mi²) | Image:Map of Louisiana highlighting Calcasieu Parish.svg
|
| Caldwell Parish
| 021
| Columbia | 1838 | from part of Catahoula Parish and Ouachita Parish. | 1,400 km² (541 mi²) | Image:Map of Louisiana highlighting Caldwell Parish.svg
|
| Cameron Parish
| 023
| Cameron | 1870 | from parts of Calcasieu Parish and Vermilion Parish. | 5,003 km² (1,932 mi²) | Image:Map of Louisiana highlighting Cameron Parish.svg
|
| Catahoula Parish
| 025
| Harrisonburg | 1808 | from parts of Ouachita Parish and Rapides Parish. | 1,915 km² (739 mi²) | Image:Map of Louisiana highlighting Catahoula Parish.svg
|
| Claiborne Parish
| 027
| Homer | 1828 | from part of Natchitoches Parish. | 1,988 km² (768 mi²) | Image:Map of Louisiana highlighting Claiborne Parish.svg
|
| Concordia Parish
| 029
| Vidalia | 1807 | One of the original 19 parishes. | 1,939 km² (749 mi²) | Image:Map of Louisiana highlighting Concordia Parish.svg
|
| De Soto Parish
| 031
| Mansfield | 1843 | from parts of Caddo Parish and Natchitoches Parish. | 2,317 km² (894 mi²) | Image:Map of Louisiana highlighting De Soto Parish.svg
|
| East Baton Rouge Parish
| 033
| Baton Rouge | 1810 | from West Florida territory. | 1,219 km² (471 mi²) | Image:Map of Louisiana highlighting East Baton Rouge Parish.svg
|
| East Carroll Parish
| 035
| Lake Providence | 1877 | when Carroll Parish was divided. | 1,144 km² (442 mi²) | Image:Map of Louisiana highlighting East Carroll Parish.svg
|
| East Feliciana Parish
| 037
| Clinton | 1824 | when Feliciana Parish was divided. | 1,180 km² (456 mi²) | Image:Map of Louisiana highlighting East Feliciana Parish.svg
|
| Evangeline Parish
| 039
| Ville Platte | 1910 | from part of St. Landry Parish. | 1,760 km² (680 mi²) | Image:Map of Louisiana highlighting Evangeline Parish.svg
|
| Franklin Parish
| 041
| Winnsboro | 1843 | from parts of Carroll Parish, Catahoula Parish, Madison Parish and Ouachita Parish | 1,646 km² (635 mi²) | Image:Map of Louisiana highlighting Franklin Parish.svg
|
| Grant Parish
| 043
| Colfax | 1869 | from parts of Rapides Parish and Winn Parish. | 1,721 km² (665 mi²) | Image:Map of Louisiana highlighting Grant Parish.svg
|
| Iberia Parish
| 045
| New Iberia | 1868 | from parts of St. Martin Parish and St. Mary Parish. | 2,670 km² (1,031 mi²) | Image:Map of Louisiana highlighting Iberia Parish.svg
|
| Iberville Parish
| 047
| Plaquemine | 1807 | One of the original 19 parishes. | 1,691 km² (653 mi²) | Image:Map of Louisiana highlighting Iberville Parish.svg
|
| Jackson Parish
| 049
| Jonesboro | 1845 | from parts of Claiborne Parish, Ouachita Parish and Union Parish | 1,503 km² (580 mi²) | Image:Map of Louisiana highlighting Jackson Parish.svg
|
| Jefferson Parish
| 051
| Gretna | 1825 | from part of Orleans Parish | 1,664 km² (642 mi²) | Image:Map of Louisiana highlighting Jefferson Parish.svg
|
| Jefferson Davis Parish
| 053
| Jennings | 1912 | from part of Calcasieu Parish. | 1,706 km² (659 mi²) | Image:Map of Louisiana highlighting Jefferson Davis Parish.svg
|
| Lafayette Parish
| 055
| Lafayette | 1823 | from part of St. Martin Parish. | &&&&&&&&&&&&0700.&&&&&0700 km² (270 mi²) | Image:Map of Louisiana highlighting Lafayette Parish.svg
|
| Lafourche Parish
| 057
| Thibodaux | 1807 | One of the original 19 parishes. Was named Interior Parish until 1812 and Lafourche Interior Parish until 1853. | 3,813 km² (1,472 mi²) | Image:Map of Louisiana highlighting Lafourche Parish.svg
|
| La Salle Parish
| 059
| Jena | 1908 | from part of Catahoula Parish. | 1,716 km² (662 mi²) | Image:Map of Louisiana highlighting La Salle Parish.svg
|
| Lincoln Parish
| 061
| Ruston | 1873 | from parts of Bienville Parish, Claiborne Parish, Jackson Parish and Union Parish. | 1,223 km² (472 mi²) | Image:Map of Louisiana highlighting Lincoln Parish.svg
|
| Livingston Parish
| 063
| Livingston | 1832 | from part of St. Helena Parish. | 1,820 km² (&&&&&&&&&&&&0703.&&&&&0703 mi²) | Image:Map of Louisiana highlighting Livingston Parish.svg
|
| Madison Parish
| 065
| Tallulah | 1838 | from Concordia Parish. | 1,685 km² (&&&&&&&&&&&&0651.&&&&&0651 mi²). | Image:Map of Louisiana highlighting Madison Parish.svg
|
| Morehouse Parish
| 067
| Bastrop | 1844 | from parts of Carroll Parish and Ouachita Parish. | 2,085 km² (805 mi²) | Image:Map of Louisiana highlighting Morehouse Parish.svg
|
| Natchitoches Parish
| 069
| Natchitoches | 1807 | One of the original 19 parishes. | 3,365 km² (1,299 mi²) | Image:Map of Louisiana highlighting Natchitoches Parish.svg
|
| Orleans Parish
| 071
| New Orleans | 1807 | One of the original 19 parishes. Today coterminous with the City of New Orleans. | &&&&&&&&&&&&0907.&&&&&0907 km² (350 mi²) | Image:Map of Louisiana highlighting Orleans Parish.svg
|
| Ouachita Parish
| 073
| Monroe | 1807 | One of the original 19 parishes. | 1,639 km² (633 mi²) | Image:Map of Louisiana highlighting Ouachita Parish.svg
|
| Plaquemines Parish
| 075
| Pointe a la Hache | 1807 | One of the original 19 parishes. | 6,290 km² (2,429 mi²) | Image:Map of Louisiana highlighting Plaquemines Parish.svg
|
| Pointe Coupee Parish
| 077
| New Roads | 1807 | One of the original 19 parishes. | 1,530 km² (591 mi²) | Image:Map of Louisiana highlighting Pointe Coupee Parish.svg
|
| Rapides Parish
| 079
| Alexandria | 1807 | One of the original 19 parishes. | 3,527 km² (1,362 mi²) | Image:Map of Louisiana highlighting Rapides Parish.svg
|
| Red River Parish
| 081
| Coushatta | 1871 | from parts of Bienville Parish, Bossier Parish, Caddo Parish and Natchitoches Parish. | 1,041 km² (402 mi²) | Image:Map of Louisiana highlighting Red River Parish.svg
|
| Richland Parish
| 083
| Rayville | 1868 | from parts of Carroll Parish, Franklin Parish, Morehouse Parish and Ouachita Parish. | 1,462 km² (565 mi²) | Image:Map of Louisiana highlighting Richland Parish.svg
|
| Sabine Parish
| 085
| Many | 1843 | from parts of Caddo Parish and Natchitoches Parish. | 2,620 km² (1,012 mi²) | Image:Map of Louisiana highlighting Sabine Parish.svg
|
| St. Bernard Parish
| 087
| Chalmette | 1807 | One of the original 19 parishes. | 4,646 km² (1,794 mi²) | Image:Map of Louisiana highlighting Saint Bernard Parish.svg
|
| St. Charles Parish
| 089
| Hahnville | 1807 | One of the original 19 parishes. | 1,062 km² (410 mi²) | Image:Map of Louisiana highlighting Saint Charles Parish.svg
|
| St. Helena Parish
| 091
| Greensburg | 1810 | from West Florida territory. | 1,060 km² (409 mi²) | Image:Map of Louisiana highlighting Saint Helena Parish.svg
|
| St. James Parish
| 093
| Convent | 1807 | One of the original 19 parishes. | &&&&&&&&&&&&0668.&&&&&0668 km² (258 mi²) | Image:Map of Louisiana highlighting Saint James Parish.svg
|
| St. John the Baptist Parish
| 095
| Edgard | 1807 | One of the original 19 parishes. | &&&&&&&&&&&&0901.&&&&&0901 km² (348 mi²) | Image:Map of Louisiana highlighting Saint John the Baptist Parish.svg
|
| St. Landry Parish
| 097
| Opelousas | 1807 | One of the original 19 parishes. | 2,432 km² (939 mi²) | Image:Map of Louisiana highlighting Saint Landry Parish.svg
|
| St. Martin Parish
| 099
| Saint Martinville | 1807 | One of the original 19 parishes. | 2,115 km² (816 mi²). | Image:Map of Louisiana highlighting Saint Martin Parish.svg
|
| St. Mary Parish
| 101
| Franklin | 1811 | from part of St. Martin County. | 1,585 km² (612 mi²) | Image:Map of Louisiana highlighting Saint Mary Parish.svg
|
| St. Tammany Parish
| 103
| Covington | 1810 | from West Florida territory. | 2,911 km² (1,124 mi²) | Image:Map of Louisiana highlighting Saint Tammany Parish.svg
|
| Tangipahoa Parish
| 105
| Amite | 1868 | from parts of Livingston Parish, St. Helena Parish, St. Tammany Parish and Washington Parish. | 2,132 km² (823 mi²) | Image:Map of Louisiana highlighting Tangipahoa Parish.svg
|
| Tensas Parish
| 107
| Saint Joseph | 1843 | from part of Concordia Parish. | 1,661 km² (641 mi²) | Image:Map of Louisiana highlighting Tensas Parish.svg
|
| Terrebonne Parish
| 109
| Houma | 1822 | from part of Lafourche Parish. | 5,387 km² (2,080 mi²) | Image:Map of Louisiana highlighting Terrebonne Parish.svg
|
| Union Parish
| 111
| Farmerville | 1839 | from part of Ouachita Parish. | 2,345 km² (905 mi²) | Image:Map of Louisiana highlighting Union Parish.svg
|
| Vermilion Parish
| 113
| Abbeville | 1844 | from part of Lafayette Parish. | 3,984 km² (1,538 mi²) | Image:Map of Louisiana highlighting Vermilion Parish.svg
|
| Vernon Parish
| 115
| Leesville | 1871 | from parts of Natchitoches Parish, Rapides Parish and Sabine Parish. | 3,474 km² (1,342 mi²) | Image:Map of Louisiana highlighting Vernon Parish.svg
|
| Washington Parish
| 117
| Franklinton | 1819 | from part of St. Tammany Parish. | 1,751 km² (676 mi²) | Image:Map of Louisiana highlighting Washington Parish.svg
|
| Webster Parish
| 119
| Minden | 1871 | from parts of Bienville Parish, Bossier Parish and Claiborne Parish. | 1,593 km² (615 mi²) | Image:Map of Louisiana highlighting Webster Parish.svg
|
| West Baton Rouge Parish
| 121
| Port Allen | 1807 | One of the original 19 parishes. Was named Baton Rouge Parish until 1812. | &&&&&&&&&&&&0527.&&&&&0527km² (204 mi²) | Image:Map of Louisiana highlighting West Baton Rouge Parish.svg
|
| West Carroll Parish
| 123
| Oak Grove | 1877 | when Carroll Parish was divided. | &&&&&&&&&&&&0933.&&&&&0933 km² (360 mi²) | Image:Map of Louisiana highlighting West Carroll Parish.svg
|
| West Feliciana Parish
| 125
| Saint Francisville | 1824 | when Feliciana Parish was divided. | 1,051 km² (406 mi²) | Image:Map of Louisiana highlighting West Feliciana Parish.svg
|
| Winn Parish
| 127
| Winnfield | 1852 | from parts of Catahoula Parish, Natchitoches Parish and Rapides Parish. | 2,478 km² (957 mi²) | Image:Map of Louisiana highlighting Winn Parish.svg
|
The thirteen counties defined by the Territorial Legislative Council in 1803 were:
fr:Paroisses de l'État de Louisiane
it:Parrocchie della Louisiana
nl:Lijst van parishes in Louisiana
ja:ルイジアナ州の郡一覧
no:Liste over fylker i Louisiana