Broussard is located at (30.142329, -91.963644) [REF].
According to the United States Census Bureau, the town has a total area of 11.4 square miles (29.6 km²), of which, 11.4 square miles (29.5 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.18%) is water.