Geographically, Siberia includes the Russian Urals, Siberian, and Far Eastern Federal Districts. Siberia has population density of only three persons per square kilometer (comparable to Mongolia). The oblasts with the highest population densities are Chelyabinsk Oblast and Kemerovo Oblast, with 41 and 30 persons per square km, respectively. Koryak Okrug has population density of less than 0.1 per square kilometer. Population Urals Federal District, population ca. 12.08 million Kurgan Oblast, population 1.02 million (2002) Sverdlovsk Oblast, population 4.49 million (2002) Tyumen Oblast, population 3.26 million (2002) Khanty–Mansi Autonomous Okrug, population 1.5 million Yamalo-Nenets Autonomous Okrug, population 550,000 inhabitants (2002) Chelyabinsk Oblast, population 3.6 million (2002) Siberian Federal District, population ca. 20.28 million Altai Krai, administrative center — Barnaul, population 2.6 million (2002) Altai Republic, capital — Gorno-Altaisk, population 202,947 (2002) Buryat Republic, capital — Ulan Ude, population 981,238 (2002) Zabaykalsky Krai, administrative center — Chita, population 1,155,346 (2002) Irkutsk Oblast, administrative center — Irkutsk, population 2.77 million (2002) Republic of Khakassia, capital — Abakan, population 575,400. Kemerovo Oblast, administrative center — Kemerovo, population 2.90 million (2002) Krasnoyarsk Krai, administrative center — Krasnoyarsk, population 2.97 million (2002). Novosibirsk Oblast, administrative center — Novosibirsk, population 2.69 million (2002) Omsk Oblast, administrative center — Omsk, population 2.08 million (2002) Tomsk Oblast, administrative center — Tomsk, population 1.06 million (2002) Tuva Republic, capital — Kyzyl, population 305,510 (2002) Far Eastern Federal District (Russian Far East), population ca. 7.02 million Sakha (Yakutia) Republic, capital — Yakutsk, population 949,280 (2002) — the only Far Eastern region that is sometimes counted as part of Siberia. Excluding territories of north-central Kazakhstan, Siberia has a total population of ca. 38.7 million (2005). The North Kazakhstan oblast has another 1.1 million inhabitants (2002). About 70% of Siberia's people live in cities. Novosibirsk is the largest city in Siberia, with a population of about 1.5 million, followed by Yekaterinburg (1.3 million, Urals), Omsk (1.1 million), Chelyabinsk (1.07 million, in the Urals), Krasnoyarsk (0.91 million), Barnaul (0.60 million), Irkutsk (0.59 million), Kemerovo (0.52 million), Tyumen (0.51 million), Tomsk (0.48 million), Nizhny Tagil (0.39 million, Urals), Kurgan (0.36 million), Ulan Ude (0.36 million), Chita (0.32 million). The above count, however, by including the entire Urals Federal District, includes cities not usually considered part of Siberia, i.e. Yekaterinburg, Chelyabinsk, and Nizhny Tagil. Ethnicities and languages The vast majority of the Siberian population (over 85%) is Slavic and other Indo-European ethnicities, mainly the Russians (including