Louisiana Highway 25

Louisiana Highway 25
Route of LA 25 highlighted in red
Route information
Maintained by Louisiana DOTD
Length	38.720 mi[1] (62.314 km)
Existed	1955 renumbering–present
Major junctions
South end	US 190 in Covington
Major intersections	LA 40 in Folsom LA 10 / LA 16 in Franklinton LA 38 at Clifton
North end	MS 27 at Mississippi state line north of Warnerton
Location
Country	United States
State	Louisiana
Parishes	St. Tammany, Washington
Highway system
Louisiana State Highway System Interstate US State Scenic
← LA 24 → LA 26

Louisiana Highway 25 (LA 25) is a state highway located in southeastern Louisiana. It runs 38.72 miles (62.31 km) in a north–south direction from U.S. Highway 190 (US 190) in Covington to the Mississippi state line north of Warnerton.

The route extends from the Covington city limits through the rural hilly terrain beyond the New Orleans metropolitan area. It travels through northern St. Tammany Parish and traverses neighboring Washington Parish, connecting both parish seats: Covington and Franklinton, respectively. The only other incorporated area along the route is the small village of Folsom.

LA 25 generally runs parallel to the Bogue Falaya and Bogue Chitto rivers, crossing the latter via the Chess Richardson Bridge at Franklinton, which it shares with LA 10 and LA 16. In addition to those routes, LA 25 crosses several rural east–west state highways that traverse the Florida Parishes, including LA 40 in Folsom and LA 38 at Clifton. North of Franklinton, LA 25 crosses the state line and continues as Mississippi Highway 27 (MS 27) toward Tylertown.

LA 25 was created in the 1955 Louisiana Highway renumbering, replacing the former State Route 34. The designation initially extended southward to a different terminus near the present US 190/LA 22 interchange in Mandeville. However, the route has been shortened twice due to realignments of US 190, first in 1956 when US 190 was returned to its original route through Covington and again in 1969 when the Covington Bypass was completed.