Assumption (uh-SUMP-shun), parish (357 sq mi/925 sq km; 1990 pop. 22,753), SE La.; Napoleonville; 29°57'N 91°02'W. Bounded W partly by Belle R.; intersected by Bayou Lafourche (navigable). Agr. (sugarcane, rice, corn, home gardens; cattle, horses); crawfish, crabs; sugar milling. Includes L. Verret in W (recreation). Has Madewood antebellum mansion, 1820. Formed 1807.
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