The Yamalo-Nenets Autonomous Okrug or Yamalia is a federal subject of Russia and an autonomous okrug of Tyumen Oblast. Its administrative center is the town of Salekhard, and its largest city is Novy Urengoy. The 2021 Russian Census recorded its population as 510,490.

Tyumen Oblast is a federal subject of Russia. It is located in Western Siberia, and is administratively part of the Urals Federal District. The oblast has administrative jurisdiction over two autonomous okrugs: Khanty-Mansi Autonomous Okrug and Yamalo-Nenets Autonomous Okrug. Tyumen Oblast, including its autonomous okrugs, is the third-largest federal subject by area, and has a population of 3,395,755 (2010).