Sariakandi Upazila is divided into Sariakandi Municipality and 12 union parishads: Bhelabari, Bohail, Chaluabari, Chandan Baisha, Fulbari, Hat Sherpur, Kamalpur, Karnibari, Kazla, Kutubpur, Narchi, and Sariakandi.
Sariakandi Upazila is composed of the municipal entity and 12 village councils: Bhelabari, Bohail, Chaluabari, Chandan Baisha, Fulbari, Hat Sherpur, Kamalpur, Karnibari, Kazla, Kutubpur, Narchi, and Sariakandi.