Louisiana Constitution, adopted Jun. 18, 1921
Art. VII, Sec. 31
Section 31 - The Judicial districts shall remain as now established until the expiration of the terms for which the present district judges were elected. Thereafter, there shall be twenty-five judicial districts in the State, the parish of Orleans excepted, and each district shall be composed as follows, to-wit :
The parishes of Caddo and Bossier shall compose the First District.
The parishes of Webster, Claiborne and Bienville shall compose the Second District.
The parishes of Lincoln, Jackson and Union shall compose the Third District.
The parishes of Ouachita and Morehouse shall compose the Fourth District.
The parishes of West Carroll, Richland and Franklin shall compose the Fifth District.
The parishes of East Carroll, Madison and Tensas shall compose the Sixth District.
The parishes of Catahoula and Concordia shall compose the Seventh District.
The parishes of Caldwell, Winn and La Salle shall compose the Eighth District.
The parishes of Rapides and Grant shall compose the Ninth District.
The parishes of Natchitoches and Red River shall compose the Tenth District.
The parishes of De Soto, Vernon and Sabine shall compose the Eleventh District.
The parish of Avoyelles shall compose the Twelfth District.
The parishes of St. Landry and Evangeline shall compose the Thirteenth District.
The parishes of Calcasieu, Jefferson Davis, Allen, Beauregard and Cameron shall compose the Fourteenth District.
The parishes of Acadia, Lafayette and Vermilion shall compose the Fifteenth District.
The parishes of St. Mary, Iberia and St. Martin shall compose the Sixteenth District.
The parishes of Terrebonne and Lafourche shall compose the Seventeenth District.
The parishes of Iberville, West Baton Rouge and Pointe Coupee shall compose the Eighteenth District.
The parish of East Baton Rouge shall compose the Nineteenth District.
The parishes of East Feliciana and West Feliciana shall compose the Twentieth District.
The parishes of Tangipahoa, Livingston and St. Helena shall compose the Twenty-first District.
The parishes of Washington and St. Tammany shall compose the Twenty-Second District.
The parishes of Assumption, Ascension and St. James shall compose the Twenty-Third District.
The parishes of Jefferson, St. John the Baptist and St. Charles shall compose the Twenty-Fourth District.
The parishes of St. Bernard and Plaquemines shall compose the Twenty-Fifth District.
