The Grand Caillou Branch Library serves about 798 residents of Dulac, Terrebonne Parish. The library is a publicly funded and managed library and a part of the Terrebonne Parish Library, which maintains about 294,550 volumes and circulates over 436,888 items annually. The branch library provides books and electronic resources through Hoopla and Flipster Applications and offers events for all patrons, including Toddler Storytime and Crafts, Community History Preservation Project, Snowflake Painting, and Sewing Circle.