| No. | 20 | View Larger Map |
| INDEX | PATOS | |
| ENGLISH NAME | Patos Lagoon | |
| LOCAL NAME | Lagoa dos Patos | |
| CONTINENT | South America | |
| NATIONS | Brazil | |
| Latitude (deg) | -31.10 | |
| Longitude (deg) | -51.25 | |
| Area (km2) | 10,100 | |
| Maximum depth (m) |
5 | |
| Volume (km3) | 20 | |
| Elevation (m) | 1 | |
| Bottom Level (m) |
-4 | |
| fresh/salt | brackish |