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History and Facts of Louisiana Parishes

Louisiana Parishes were formed from French and Spanish colonies, which were both officially Roman Catholic. Local government was based upon parishes, as the local ecclesiastical division.

Following the Louisiana Purchase in 1803, the Territorial Legislative Council divided the Territory of Orleans into twelve counties. The borders of these counties were poorly defined, but they roughly coincided with the colonial parishes, and hence used the same names.

On March 31, 1807, the territorial legislature divided the state into 19 parishes without abolishing the old counties (which continued to exist until 1845). In 1811, a constitutional convention was held to prepare for Louisiana’s admission into the Union.

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.

List of Louisiana Parishes

Louisiana is divided into 64 perishes.

List of Old Former / Extinct Louisiana Parishes

Louisiana has counties that no longer are in existence. A lot of these counties were established and disbanded within the 19th century; county borders have modified very little since 1900 in the vast most of states.

The below Louisiana parishes no longer exist:

Acadia County, Louisiana

was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Ascension Parish and St. James Parish on March 31, 1807.

  • Attakapas County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into St. Martin  Parish on March 31, 1807
  • Attakapas Parish was formed on on March 31, 1807 from Attakapas County, and was divided on March 31, 1807 into St. Martin Parish and St. Mary Parish on April 17, 1811
  • Baton Rouge Parish: Created in 1792 in the West Floridas area. The land was divided into East & West Baton Rouge Parishes in 1810.
  • Biloxi Parish was formed on January 4, 1811 from Feliciana Parish, it was eliminated in 1812 when part of West Florida was transferred to Mississippi Territory.
  • Carroll Parish: Formed from in Ouachita and Concordia Parishes 1832, it was split into East Carroll and West Carroll Parishes in 1877
  • Concordia County   was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Concordia Parish on March 31, 1807
  • Dugdemonia Parish was formed on March 18, 1850 from Catahoula Parish, Natchioches Parish, Rapides Parish, Dissolved
  • Feliciana Parish: Formed in 1810 from Spanish West Florida, it was split into East Feliciana and West Feliciana in 1824
  • German Coast County was formed on 10 April 10, 1805 from the louisiana Territory and was divided on March 31, 1807 into St. Charles Parish and St. John the Baptist Parish
  • Iberville County   was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Iberville Parish and Baton Rouge Parish on March 31, 1807
  • Lafourche County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Assumption Parish and Lafourche Interior on March 31, 1807
  • Lafourche Interior was formed on on March 31, 1807 from Lafourche County, renamed Lafourche  Parish on March 23,1853
  • Natchitoches County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Natchitoches  Parish on March 31, 1807
  • Opelousas County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into St. Landry  Parish on March 31, 1807
  • Orleans County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Orleans Territory, St. Bernard  Parish and Plaquemines Parish on March 31, 1807
  • Pointe Coupee County   was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Pointe Coupee  Parish on March 31, 1807
  • Rapides County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Avoyelles Parish and Rapides Parish on March 31, 1807
  • Ouachita County was formed as one of 12 original counties formed by the Orleans Territory on April 10, 1805, Dissolved into Ouachita Parish on March 31, 1807
  • Warren Parish was formed on March 20, 1811 from Concordia Parish, merged into Concordia Parish and Ouachita Parish in 1814

Louisiana Parishes Boundary Changes

Map of Louisiana Parish Boundary Changes from 1805-1990

This Interactive Map of Louisiana Parishes show the historical boundaries, names, organization, and attachments of every county, extinct county and unsuccessful county proposal from 1805 to 1990.

Fun Facts about Louisiana Parishes

Parishes by Year

Facts for Parish Size

Facts for Parish Population (2017 Est.)

Facts for Louisiana Parishes and Cities

Louisiana ’s 10 largest cities (2019) are:

  1. Birmingham (212,237) is in Jefferson and Shelby Counties
  2. New Orleans,
  3. Baton Rouge
  4. Shreveport
  5. Metairie, Lafayette, Lake Charles, Kenner, Bossier City, Monroe and Alexandria