Louisiana River Map (PDF) | Major Rivers & Lakes in Louisiana

Written and Fact-checked by 青青草视频 Editors | Updated On: April 03, 2026 | 15:05 ET

Louisiana River Map showing major rivers in Louisiana, River start and end point, county boundaries.

River Map of Louisiana State

About Map: Louisiana River Map showing major rivers in Louisiana, county boundaries and state boundary.

PDF Map - Free Download Louisiana River Map, United States

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Rivers and Waterways in Louisiana

Louisiana鈥檚 river systems are shaped by low-lying plains, wetlands, and a vast network of bayous and distributaries. Most waterways drain into the Mississippi River, which flows south through the state into the Gulf of Mexico, forming an extensive delta system. Slow-moving rivers and tidal influences are common, especially near the coast. The state also includes lakes, marshes, and reservoirs that support navigation, fisheries, flood control, and water supply across its unique landscape.

Major Rivers in Louisiana

River	Length (Approx.)	Region	Flows Into
Mississippi River	2,340 mi	East	Gulf of Mexico
Red River	1,360 mi	North	Mississippi River
Atchafalaya River	137 mi	South	Gulf of Mexico
Ouachita River	605 mi	North	Red River
Sabine River	510 mi	West	Gulf of Mexico
Calcasieu River	200 mi	Southwest	Gulf of Mexico
Pearl River	444 mi	East	Gulf of Mexico
Amite River	117 mi	South	Lake Maurepas
Tchefuncte River	70 mi	South	Lake Pontchartrain
Tickfaw River	113 mi	South	Lake Maurepas
Vermilion River	70 mi	South	Gulf of Mexico
Mermentau River	72 mi	Southwest	Gulf of Mexico
Boeuf River	68 mi	North	Ouachita River
Tensas River	98 mi	Northeast	Ouachita River
Black River	50 mi	Central	Red River
Little River	96 mi	Central	Red River
Bayou Teche	125 mi	South	Atchafalaya Basin
Bayou Lafourche	106 mi	South	Gulf of Mexico

Major Lakes in Louisiana

Lake	Type	Region
Lake Pontchartrain	Natural lake	South
Toledo Bend Reservoir	Reservoir	West
Lake Maurepas	Natural lake	South
Calcasieu Lake	Natural lake	Southwest
Caddo Lake	Natural lake	Northwest
Lake D'Arbonne	Reservoir	North
False River	Natural lake	Central
Grand Lake	Natural lake	South
Lake Bistineau	Reservoir	Northwest
Vernon Lake	Reservoir	West

Major River Basins in Louisiana

Louisiana鈥檚 river basins are dominated by the Mississippi River system, which forms a complex network of distributaries, wetlands, and coastal waterways. These basins are essential for navigation, flood control, and sustaining the state鈥檚 ecosystems.

Mississippi River Basin
Red River Basin
Atchafalaya River Basin
Ouachita River Basin
Sabine River Basin
Pearl River Basin
Calcasieu River Basin
Mermentau River Basin
Amite River Basin

Louisiana Rivers Facts

State	Louisiana
Total Rivers & Streams	40,000+ miles of waterways
Major Rivers	Mississippi, Red, Atchafalaya, Ouachita
Total Waterway Length	50,000+ miles
Main Drainage	Mississippi River System
Longest River	Mississippi River
Shortest River	Black River
Major River Basins	9 Primary Basins
Primary Outlet	Gulf of Mexico
Key Uses	Navigation, fisheries, flood control, water supply
Longest River Within State	Red River
Number of River Basins	8鈥�10 Basins
Major Reservoirs	Toledo Bend, Lake D'Arbonne, Lake Bistineau
Primary Water Source	Surface water and river systems

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