Tadayra n Sidi Mezɣic d tadayra deg tmurt n Lezzayer, tettiki deg twilayt n Skikda. Ma d tajumma-ines tesɛa azal n 332,23 km². Tamanaɣt ines d tamdint n sidi Mezɣic. Tadayra-a tebḍa ɣef 3 n tɣiwanin: Bni WelbanƐin BuzeyyanSidi Mezɣic