List of state highways in Louisiana (1–99)
The following is a list of state highways in the U.S. state of Louisiana designated in the 1–99 range.Louisiana Highway 1
Louisiana Highway 1 runs in a southeast to northwest direction from a dead end in Grand Isle, Jefferson Parish to the Texas state line northwest of Rodessa, Caddo Parish.Louisiana Highway 2 runs in an east–west direction from the Texas state line southwest of Vivian, Caddo Parish to US 65 north of Lake Providence, East Carroll Parish.Louisiana Highway 2 Alternate
Louisiana Highway 2 Alternate runs in an east–west direction from the junction of LA 2 and LA 159 in Shongaloo, Caddo Parish to the junction of US 63/US 167 and LA 2 in Bernice, Union Parish.Louisiana Highway 3
Louisiana Highway 3 runs in a north–south direction from the junction of I-20, US 71, and LA 72 in Bossier City to the Arkansas state line north of Plain Dealing, Bossier Parish.Louisiana Highway 4
Louisiana Highway 4 runs in an east–west direction from US 71 north of Loggy Bayou, Red River Parish to LA 605 in Newellton, Tensas Parish.Louisiana Highway 5
Louisiana Highway 5 runs in a general southwest to northeast direction from US 84 in Logansport to LA 175 at Kingston, DeSoto Parish.Louisiana Highway 6
Louisiana Highway 6 runs in a southwest to northeast direction from the Texas state line southwest of Many, Sabine Parish to the junction of US 71 and US 84 in Clarence, Natchitoches Parish.Louisiana Highway 7
Louisiana Highway 7 ran in a north–south direction from US 71 in Coushatta, Red River Parish to the Arkansas state line at Springhill, Webster Parish. The route was replaced with a part of U.S. Route 371 in 1994.Louisiana Highway 8
Louisiana Highway 8 runs in a southwest to northeast direction from the Texas state line west of Burr Ferry, Vernon Parish to the concurrent US 425/LA 15 in Sicily Island, Catahoula Parish.Louisiana Highway 9
Louisiana Highway 9 runs in a north–south direction from the concurrent US 71/US 84 in Campti, Natchitoches Parish to the concurrent US 63/US 167 at the Claiborne–Union parish line in Junction City.Louisiana Highway 10
Louisiana Highway 10 runs in an east–west direction from US 171 south of Leesville, Vernon Parish to the Mississippi state line east of Bogalusa, Washington Parish.Louisiana Highway 12
Louisiana Highway 12 runs in an east–west direction from the Texas state line west of Starks, Calcasieu Parish to the junction of US 171 and US 190 in Ragley, Beauregard Parish.Louisiana Highway 13
Louisiana Highway 13 runs in a north–south direction from LA 14 west of Kaplan, Vermilion Parish to US 167 in Turkey Creek, Evangeline Parish.Louisiana Highway 14
Louisiana Highway 14 runs in an east–west direction from the junction of US 90 and US 171 in Lake Charles, Calcasieu Parish to LA 182 in New Iberia, Iberia Parish.Louisiana Highway 15 runs in a north–south direction from the junction of LA 1 and LA 970 northwest of Lettsworth, Pointe Coupee Parish to the concurrent US 63/US 167 in Lillie, Union Parish.Louisiana Highway 16
Louisiana Highway 16 runs in a general east–west direction from LA 22 south of French Settlement, Livingston Parish to LA 21 in Sun, Washington Parish.Louisiana Highway 17 runs in a north–south direction from the junction of US 425/LA 15, LA 4, and LA 130 in Winnsboro, Franklin Parish to the Arkansas state line at Kilbourne, West Carroll Parish.Louisiana Highway 18
Louisiana Highway 18 runs in an east–west direction from the junction of LA 1 and LA 3089 in Donaldsonville, Ascension Parish to the junction of US 90 Bus. and LA 23 in Gretna, Jefferson Parish.Louisiana Highway 19
Louisiana Highway 19 runs in a north–south direction from US 61 in Baton Rouge, East Baton Rouge Parish to the Mississippi state line north of Norwood, East Feliciana Parish.Louisiana Highway 20 runs in a southwest to northeast direction from LA 182 in Gibson, Terrebonne Parish to LA 18 in Vacherie, St. James Parish.Louisiana Highway 21
Louisiana Highway 21 runs in a north–south direction from the junction of LA 22 and LA 1077 in Madisonville, St. Tammany Parish to the Mississippi state line north of Angie, Washington Parish.Louisiana Highway 22
Louisiana Highway 22 runs in an east–west direction from the junction of LA 75 and LA 942 in Darrow, Ascension Parish to US 190 in Mandeville, St. Tammany Parish.Louisiana Highway 23 runs in a southeast to northwest direction from Jump Basin Road in Venice, Plaquemines Parish to a junction with LA 428 in Gretna, Jefferson Parish.Louisiana Highway 24
Louisiana Highway 24 runs in a general east–west direction from LA 20 in Schriever, Terrebonne Parish to LA 3235 in Larose, Lafourche Parish.Louisiana Highway 25
Louisiana Highway 25 runs in a north–south direction from US 190 in Covington, St. Tammany Parish to the Mississippi state line north of Warnerton, Washington Parish.Louisiana Highway 26
Louisiana Highway 26 runs in a northwest to southeast direction from the concurrent US 171/US 190 southeast of DeRidder, Beauregard Parish to LA 14 in Lake Arthur, Jefferson Davis Parish.Louisiana Highway 27
Louisiana Highway 27 runs in a general southeast to northwest direction from LA 14 at Holmwood, Calcasieu Parish to the junction of US 171 and US 190 in DeRidder, Beauregard Parish.Louisiana Highway 28
Louisiana Highway 28 runs in an east–west direction from the junction of US 171 and LA 8 in Leesville, Vernon Parish to US 84 west of Jonesville, Catahoula Parish.Louisiana Highway 29
Louisiana Highway 29 runs in a north–south direction from LA 13 north of Eunice, St. Landry Parish to LA 114 west of Moreauville, Avoyelles Parish.Louisiana Highway 30
Louisiana Highway 30 runs in a northwest to southeast direction from a point near I-10 in Baton Rouge, East Baton Rouge Parish to the junction of US 61 and LA 431 east of Gonzales, Ascension Parish.Louisiana Highway 31 runs in a north–south direction from LA 182 in New Iberia, Iberia Parish to a second junction with LA 182 in Opelousas, St. Landry Parish.Louisiana Highway 32
Louisiana Highway 32 ran in a north–south direction along North Third Street from LA 30 to the Louisiana State Capitol building in Baton Rouge.Louisiana Highway 33 runs in a north–south direction from US 80 in Ruston, Lincoln Parish to the Arkansas state line north of Marion, Union Parish.Louisiana Highway 34
Louisiana Highway 34 runs in a north–south direction from the junction of US 71 and LA 1239-2 in Montgomery, Grant Parish to the concurrent US 80/LA 15 in West Monroe, Ouachita Parish.Louisiana Highway 35
Louisiana Highway 35 runs in a north–south direction from LA 82 north of Forked Island, Vermilion Parish to US 190 in Lawtell, St. Landry Parish.Louisiana Highway 36
Louisiana Highway 36 runs in an east–west direction from LA 21 east of Covington to LA 41 northwest of Pearl River, St. Tammany Parish.Louisiana Highway 37
Louisiana Highway 37 runs in a southwest to northeast direction from the concurrent US 61/US 190 in Baton Rouge, East Baton Rouge Parish to LA 10 in Greensburg, St. Helena Parish.Louisiana Highway 38
Louisiana Highway 38 runs in an east–west direction from LA 10 in Coleman Town, St. Helena Parish to LA 430 south of Hackley, Washington Parish.Louisiana Highway 39
Louisiana Highway 39 runs in a general north–south direction from a local road southeast of Pointe à la Hache, Plaquemines Parish to I-10 in New Orleans, Orleans Parish.Louisiana Highway 40
Louisiana Highway 40 runs in an east–west direction from LA 43 southeast of Montpelier, Livingston Parish to LA 41 in Bush, St. Tammany Parish.Louisiana Highway 41 runs in a north–south direction from the junction of US 11 and LA 3081 in Pearl River to LA 21 in Bush, St. Tammany Parish.Louisiana Highway 42
Louisiana Highway 42 runs in an east–west direction from LA 30 in Baton Rouge, East Baton Rouge Parish to the junction of LA 22 and LA 1037 in Springfield, Livingston Parish.Louisiana Highway 43 runs in a north–south direction from LA 42 west of Springfield, Livingston Parish to the Mississippi state line north of Easleyville, St. Helena Parish.Louisiana Highway 44
Louisiana Highway 44 runs in a general east–west direction from LA 42 in Prairieville, Ascension Parish to US 61 in LaPlace, St. John the Baptist Parish.Louisiana Highway 45 runs in a north–south direction from a dead end in Lafitte to a junction with LA 18 in Marrero, Jefferson Parish.Louisiana Highway 46
Louisiana Highway 46 runs in an east–west direction from the junction of LA 39 and LA 3021 in New Orleans, Orleans Parish to a dead end in Shell Beach, St. Bernard Parish.Louisiana Highway 47
Louisiana Highway 47 runs in a general southeast to northwest direction from a local road in Chalmette, St. Bernard Parish to the junction of two local roads in New Orleans, Orleans Parish.Louisiana Highway 48
Louisiana Highway 48 runs in an east–west direction from US 61 in Norco, St. Charles Parish to the junction of US 90 and LA 3152 in Elmwood, Jefferson Parish.