| No. | 90 | View Larger Map |
| INDEX | PONTCHARTRAIN | |
| ENGLISH NAME | Lake Pontchartrain | |
| LOCAL NAME | Lake Pontchartrain | |
| CONTINENT | North America | |
| NATIONS | USA | |
| Latitude (deg) | 30.22 | |
| Longitude (deg) | -90.12 | |
| Area (km2) | 1,620 | |
| Maximum depth (m) |
5 | |
| Volume (km3) | 3 | |
| Elevation (m) | 1 | |
| Bottom Level (m) |
-4 | |
| fresh/salt | brackish |