Administrative divisions of Irkutsk Oblast

From the Wikipedia page [1]

* **Ust-Orda Buryat Okrug**
* **Cities and towns under the oblast's jurisdiction**:
	+ Irkutsk (Иркутск) (administrative center)
		- *city districts*:
			* Kirovsky (Кировский)
			* Kuybyshevsky (Куйбышевский)
			* Leninsky (Ленинский)
			* Oktyabrsky (Октябрьский)
			* Sverdlovsky (Свердловский)
	+ Bratsk (Братск)
		- *city districts*:
			* Padunsky (Падунский)
			* Pravoberezhny (Правобережный)
			* Tsentralny (Центральный)
	+ Cheremkhovo (Черемхово)
	+ Sayansk (Саянск)
	+ Svirsk (Свирск)
	+ Tulun (Тулун)
	+ Usolye-Sibirskoye (Усолье-Сибирское)
	+ Ust-Ilimsk (Усть-Илимск)
	+ Zima (Зима)
* **Districts**:
	+ Alarsky (Аларский)
	+ Angarsky (Ангарский)
		- *Towns* under the district's jurisdiction:
			* Angarsk (Ангарск)
	+ Balagansky (Балаганский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Balagansk (Балаганск)
	+ Bayandayevsky (Баяндаевский)
	+ Bodaybinsky (Бодайбинский)
		- *Towns* under the district's jurisdiction:
			* Bodaybo (Бодайбо)
		- *Urban-type settlements* under the district's jurisdiction:
			* Artyomovsky (Артёмовский)
			* Balakhninsky (Балахнинский)
			* Kropotkin (Кропоткин)
			* Mamakan (Мамакан)
	+ Bokhansky (Боханский)
	+ Bratsky (Братский)
		- *Towns* under the district's jurisdiction:
			* Vikhorevka (Вихоревка)
	+ Cheremkhovsky (Черемховский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Mikhaylovka (Михайловка)
	+ Chunsky (Чунский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Chunsky (Чунский)
			* Lesogorsk (Лесогорск)
			* Oktyabrsky (Октябрьский)
	+ Ekhirit-Bulagatsky (Эхирит-Булагатский)
	+ Irkutsky (Иркутский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Bolshaya Rechka (Большая Речка)
			* Listvyanka (Листвянка)
			* Markova (Маркова)
	+ Kachugsky (Качугский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Kachug (Качуг)
	+ Katangsky (Катангский)
	+ Kazachinsko-Lensky (Казачинско-Ленский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Kunerma (Кунерма)
			* Magistralny (Магистральный)
			* Ulkan (Улькан)
	+ Kirensky (Киренский)
		- *Towns* under the district's jurisdiction:
			* Kirensk (Киренск)
		- *Urban-type settlements* under the district's jurisdiction:
			* Alexeyevsk (Алексеевск)
	+ Kuytunsky (Куйтунский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Kuytun (Куйтун)
	+ Mamsko-Chuysky (Мамско-Чуйский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Gorno-Chuysky (Горно-Чуйский)
			* Lugovsky (Луговский)
			* Mama (Мама)
			* Sogdiondon (Согдиондон)
			* Vitimsky (Витимский)
	+ Nizhneilimsky (Нижнеилимский)
		- *Towns* under the district's jurisdiction:
			* Zheleznogorsk-Ilimsky (Железногорск-Илимский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Khrebtovaya (Хребтовая)
			* Novaya Igirma (Новая Игирма)
			* Radishchev (Радищев)
			* Rudnogorsk (Рудногорск)
			* Shestakovo (Шестаково)
			* Vidim (Видим)
			* Yangel (Янгель)
	+ Nizhneudinsky (Нижнеудинский)
		- *Towns* under the district's jurisdiction:
			* Alzamay (Алзамай)
			* Nizhneudinsk (Нижнеудинск)
		- *Urban-type settlements* under the district's jurisdiction:
			* Atagay (Атагай)
			* Shumsky (Шумский)
			* Uk (Ук)
	+ Nukutsky (Нукутский)
	+ Olkhonsky (Ольхонский)
	+ Osinsky (Осинский)
	+ Shelekhovsky (Шелеховский)
		- *Towns* under the district's jurisdiction:
			* Shelekhov (Шелехов)
		- *Urban-type settlements* under the district's jurisdiction:
			* Bolshoy Lug (Большой Луг)
	+ Slyudyansky (Слюдянский)
		- *Towns* under the district's jurisdiction:
			* Baykalsk (Байкальск)
			* Slyudyanka (Слюдянка)
		- *Urban-type settlements* under the district's jurisdiction:
			* Kultuk (Култук)
	+ Tayshetsky (Тайшетский)
		- *Towns* under the district's jurisdiction:
			* Tayshet (Тайшет)
			* Biryusinsk (Бирюсинск)
		- *Urban-type settlements* under the district's jurisdiction:
			* Kvitok (Квиток)
			* Novobiryusinsky (Новобирюсинский)
			* Shitkino (Шиткино)
			* Yurty (Юрты)
	+ Tulunsky (Тулунский)
	+ Usolsky (Усольский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Belorechensky (Белореченский)
			* Mishelyovka (Мишелёвка)
			* Sredny (Средний)
			* Tayturka (Тайтурка)
			* Telma (Тельма)
	+ Ust-Ilimsky (Усть-Илимский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Zheleznodorozhny (Железнодорожный)
	+ Ust-Kutsky (Усть-Кутский)
		- *Towns* under the district's jurisdiction:
			* Ust-Kut (Усть-Кут)
		- *Urban-type settlements* under the district's jurisdiction:
			* Yantal (Янталь)
			* Zvyozdny (Звёздный)
	+ Ust-Udinsky (Усть-Удинский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Ust-Uda (Усть-Уда)
	+ Zalarinsky (Заларинский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Tyret Pervaya (Тыреть 1-я)
			* Zalari (Залари)
	+ Zhigalovsky (Жигаловский)
		- *Urban-type settlements* under the district's jurisdiction:
			* Zhigalovo (Жигалово)
	+ Ziminsky (Зиминский)

From the Russian Wikipedia page:

* On January 1, 2008, the Ust-Ordynsky Buryat Autonomous Okrug became part of the Irkutsk region with a special administrative status and was renamed the Ust-Ordynsky Buryat Okrug.
* By the Law of the Irkutsk Region of December 10, 2014 No. 149-OZ, from January 1, 2015, the municipal formation “city of Angarsk”, Megetsky municipal formation, Odinsky municipal formation and Savvateevsky municipal formation were united into the Angarsk urban district .
* By the Law of the Irkutsk Region of July 9, 2015 No. 65-OZ, from August 1, 2015, the Korshunovskoye municipal formation and the Mironovskoye municipal formation of the Kirensky district were transformed, by merging them, into the Korshunovskoye rural municipal formation.
* By the Law of the Irkutsk Region of December 26, 2016 No. 125-OZ the Keul municipal formation was abolished, and its territory became part of the municipal formation “Ust-Ilimsky District” as an inter-settlement territory.
* By the Law of the Irkutsk Region dated May 25, 2017 No. 31-OZ on June 10, 2017, by merging them, the Belorechenskoye municipal formation and the Malta municipal formation were transformed into the Belorechenskoye city municipal formation.
* By the Law of the Irkutsk Regi on June 10, 2017, by merging them, the Tarasovskoe municipal formation and the Ulkanskoe municipality were transformed into the Ulkanskoe urban municipality.
* In 2018, the rural settlements of Novoletnikovskoye and Maslyanogorskoye of the Ziminsky municipal district were united into the rural settlement of Novoletnikovskoye; Naratayskoye and Novotelbinskoye of the Kuytunsky municipal district to the rural settlement of Novotelbinskoye; the Tynkob rural settlement of the Bratsk municipal district was abolished, the villages of Tynkob and Khvoyny were transferred to the the villages of Ermaki and Osinovo of the Kazachinsko-Lena municipal district were transferred to the rural settlement of Kazachinskoye.
* In 2020, the village of Lenino, Osinsky district, was renamed Novo-Lenino