Aftermath and strategic consequences

The victory at Baton Rouge cleared the Mississippi River entirely of British forces and put the lower reaches of the river firmly under Spanish control. Within a few days, American and Spanish privateers captured several British supply ships on Lake Pontchartrain, including one ship carrying 54 Waldecker troops and ten to twelve sailors taken by a sloop crewed by 14 native Louisianans. Six men who escaped an earlier capture reached Baton Rouge to notify British troops there of that fort's loss. Gálvez immediately began planning an expedition against Mobile and Pensacola, the remaining British strongholds in West Florida.