Rosedale is located in northern Iberville Parish at (30.439929, -91.461588). It is bordered to the south by the village of
Grosse Tete, and Bayou Grosse Tete flows through the center of Rosedale. Louisiana Highways
76 and
77 intersect at the center of Rosedale. LA 76 leads east to
Port Allen across the
Mississippi River from
Baton Rouge, and west to a point near Ramah and
Interstate 10. LA 77, following Bayou Grosse Tete, leads northwest to
Maringouin and southeast to Interstate 10 at Grosse Tête. According to the
United States Census Bureau, Rosedale has a total area of , all land. ==Demographics==