Tawilayt n Wergla d Tawilayt deg tmurt n Lezzayer. Zedɣen-tt 558 558 n yimezdaɣen. Ma d tajumma-ines tesɛa azal n 211 980 km². Tamanaɣt ines d tamdint n wergla. Tawilayt-a tebḍa ɣef 4 n tdayriwin: Tadayra n Ḥasi Mesɛud (Ḥasi Mesɛud)Tadayra n Ngusa (Ngusa)Tadayra n Wergla (Wergla, Rwisat)Tadayra n Sidi Xwiled (Ḥasi Ben Ɛebḍella, Ɛin Lbiḍa, Sidi Xwiled)