List of federal subjects of Russia by population in the context of "Russian Census (2010)"

Krasnodar Krai (Russian: Краснода́рский край, romanized: Krasnodarskiy kray, [krəsnɐˈdarskʲɪj kraj]) is a federal subject of Russia (a krai), located in the North Caucasus region in Southern Russia and is administratively a part of the Southern Federal District. Its administrative center is the city of Krasnodar. The third most populous federal subject in Russia, it had a population of 5,838,273 as of the 2021 Census.

Krasnodar Krai is formally and informally referred to as Kuban (Russian: Кубань), a term denoting the historical region of Kuban situated between the Sea of Azov and the Kuban River which is predominantly within the krai. It is bordered by Rostov Oblast to the north, Stavropol Krai to the east, Karachay-Cherkessia to the south-east. Adygea is an enclave entirely within the krai. Krasnodar Krai shares an international border with Georgia and borders annexed Crimea to the west, across the Kerch Strait.

Bashkortostan, officially the Republic of Bashkortostan, sometimes also called Bashkiria, is a republic of Russia between the Volga river and the Ural Mountains in Eastern Europe. The republic borders Perm Krai to the north, Sverdlovsk Oblast to the northeast, Chelyabinsk Oblast to the east, Orenburg Oblast to the south, Tatarstan to the west and Udmurtia to the northwest. It covers 143,600 square kilometres (55,400 square miles). It is the seventh-most populous federal subject in Russia and the most populous republic. Its capital and largest city is Ufa. As of 2025, it has a population of 4,046,094.

Bashkortostan was established on 28 November [O.S. 15 November] 1917. On 20 March 1919, it was transformed into the Bashkir ASSR, the first autonomous republic in the Russian SFSR. On 11 October 1990, it adopted the Declaration of State Sovereignty. In the Constitution of Bashkortostan and Constitution of Russia, Bashkortostan is defined as a state.

The Nenets Autonomous Okrug (Russian: Не́нецкий автоно́мный о́круг; Nenets: Ненэцие" автономной округ’, romanized: Nyeneciye” awtonomnoy okruk’) also known as Nenetsia (Russian: Нене́ция [nʲɪˈnʲet͡sɨjə]) is a federal subject of Russia and an autonomous okrug of Arkhangelsk Oblast. Its administrative center is the town of Naryan-Mar. It has an area of 176,700 square kilometers (68,200 sq mi) and a population of 42,090 as of the 2010 Census, making it the least populous federal subject. It is the only federal subject of Russia that is divided into only one district.

A plan to merge the autonomous okrug with Arkhangelsk Oblast was presented by the governors of both federal subjects on 13 May 2020, with a referendum planned for September, but was met with opposition by locals,leading to the merger process being scrapped completely.

Primorsky Krai, informally known as Primorye, is a federal subject (a krai) of Russia, part of the Far Eastern Federal District in the Russian Far East. The city of Vladivostok on the southern coast of the krai is its administrative center, and the second largest city in the Russian Far East, behind Khabarovsk in the neighbouring Khabarovsk Krai. Primorsky Krai has the largest economy among the federal subjects in the Russian Far East, and a population of 1,845,165 as of the 2021 Census.

The krai has Russia's only border with North Korea, along the Tumen River in Khasansky District in the southwestern corner of the krai. Peter the Great Gulf, the largest gulf in the Sea of Japan, is on the south coast.

Moscow Oblast (Russian: Московская область, romanized: Moskovskaya oblastʹ, IPA: [mɐˈskofskəjə ˈobləsʲtʲ], informally known as Подмосковье, Podmoskovye, IPA: [pədmɐˈskovʲjə]) is a federal subject of Russia (an oblast). With a population of 8,524,665 (2021 Census) living in an area of 44,300 square kilometers (17,100 sq mi), it is one of the most densely populated regions in the country and is the second most populous federal subject. The oblast has no official administrative center; its public authorities are located in Moscow and Krasnogorsk (the Moscow Oblast Duma and the local government), and also across other locations in the oblast.

Located in European Russia between latitudes 54° and 57° N and longitudes 35° and 41° E, Moscow Oblast borders Tver Oblast in the northwest, Yaroslavl Oblast in the north, Vladimir Oblast in the northeast and east, Ryazan Oblast in the southeast, Tula Oblast in the south, Kaluga Oblast in the southwest, and Smolensk Oblast in the west. The oblast mostly surrounds the federal city of Moscow, which is not part of the oblast, but rather a separate federal subject in its own right. The oblast is highly industrialized, with the major industries being metallurgy, oil refining, and mechanical engineering, along with the food, energy, and chemical industries.