Louisiana Highway 31 (LA 31) is a 54.6-mile-long (87.9 km) north–south state highway in Louisiana that serves Iberia, St. Martin, and St. Landry parishes, extending from LA 182 in New Iberia, and ending at the same highway in Opelousas.
Louisiana Highway 31 (LA 31) is a 54.6-mile-long (87.9 km) north–south state highway in Louisiana that serves Iberia, St. Martin, and St. Landry parishes, extending from LA 182 in New Iberia, and ending at the same highway in Opelousas. (en)