| name | image | Average flow (m³/s) | basin (m²) | Height (m) | origin location | mouth location | Length (m) | latitude (°) | longitude (°) | canyon | Map |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oleška |  | 171,100,000 | Jizera (river) | 34,200 | 50.6012000000 | 15.3318000000 | Map | ||||
| Klenice |  | 169,900,000 | Jizera (river) | 29,300 | 50.4075000000 | 14.8957000000 | Map | ||||
| Jizerka (Jizera, Horní Sytová) |  | 85,800,000 | Jizera (river) | 21,500 | 50.7353878000 | 15.5680859000 | Map | ||||
| Mumlava |  | 51,600,000 | Krkonoše | Jizera (river) | 12,200 | 50.7616666700 | 15.3966666700 | Map | |||
| Libuňka |  | 100,800,000 | Jizera (river) | 21,400 | 50.5772222200 | 15.1416666700 | Map |