[1] The Třebovka originates in the territory of Koclířov in the Svitavy Uplands at an elevation of 548 m (1,798 ft) and flows to Ústí nad Orlicí, where it enters the Tichá Orlice River at an elevation of 321 m (1,053 ft).

[2] The average discharge at 3.4 river km, before the confluence of the Třebovka and Knapovecký potok, is 0.87 m3/s (31 cu ft/s).

[3] The longest tributaries of the Třebovka are:[4] The river flows through the municipal territories of Koclířov, Dětřichov, Opatov, Třebovice, Rybník, Česká Třebová, Dlouhá Třebová and Ústí nad Orlicí.

The largest of them is the fishpond Hvězda with an area of 74.9 ha (185 acres), built directly on the Třebovka.

If the flow is sufficient, the navigable section is 13 km (8 mi) long and is also suitable to less experienced paddlers.