Geographically, Siberia includes the Russian Urals, Siberian, and Far Eastern Federal Districts.
Siberia has population density of only three persons per square kilometer. 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.
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.