Diocese of Houma-Thibodaux

The Diocese of Houma-Thibodaux was established in 1977, carved from the Archdiocese of New Orleans to serve the bayou country of south Louisiana. It covers Lafourche, Terrebonne, and parts of St. Mary and Jefferson parishes — a region with some of the deepest French Catholic roots in the country, historically over 70% Catholic. The cathedral is St. Francis de Sales in Houma, with St. Joseph in Thibodaux serving as co-cathedral. Across 42 parishes, the diocese spans a landscape shaped by Cajun and Creole Catholic tradition going back to colonial Louisiana.