Kollo sashe ne daga cikin sassan dake a yankin Tillabéri, na Jamhuriyyar Nijar. Babban birnin sashen shine garin Kollo. Bisa ga kidayar da akayi a shekarar 2011, yawan mutane a sashen ya kai 553 127. "Annuaires_Statistiques" (PDF). Institut National de la Statistique. Retrieved 13 January 2020.