Louisiana Highway 12

Louisiana Highway 12
Route of LA 12 highlighted in red
Route information
Maintained by Louisiana DOTD
Length	34.639 mi[1] (55.746 km)
Existed	1955 renumbering–present
Major junctions
West end	SH 12 at Deweyville, TX
Major intersections	LA 27 in DeQuincy, LA
East end	US 171 / US 190 in Ragley, LA
Location
Country	United States
State	Louisiana
Parishes	Calcasieu, Beauregard
Highway system
Louisiana State Highway System Interstate US State Scenic
← I-12 → LA 13

Louisiana Highway 12 (LA 12) is a state highway located in southwestern Louisiana. It runs 34.64 miles (55.75 km) in an east–west direction from the Texas state line west of Starks to a junction with U.S. Highway 171 (US 171) and U.S. Highway 190 (US 190) in Ragley.

LA 12 traverses an area of the state known as Acadiana and is also signed as the Acadiana Trail. The route connects the city of DeQuincy with US 171 and US 190, two of the region's main highways. It is also the only highway crossing the Texas–Louisiana border between US 190 to the north and the concurrent Interstate 10 (I-10) and US 90 to the south. LA 12 enters both Calcasieu Parish and Beauregard Parish twice along its route. This is due to a northern protrusion of the former from an otherwise linear border that encompasses the DeQuincy area.

LA 12 was created in the 1955 Louisiana Highway renumbering from the westernmost portion of former State Route 7, which was otherwise concurrent with US 190 through most of the state.