Orenburg Oblast (Russian: Оренбу́ргская о́бласть, Orenburgskaya oblast) is a federal subject of Russia (an oblast). Its administrative center is the city of Orenburg. From 1938 to 1957, it bore the name Chkalov Oblast (Чка́ловская о́бласть) in honor of Valery Chkalov. Population: 2,033,072 (2010 Census).

The most important river of the oblast is the Ural.

Orenburg is traversed by the northeasterly line of equal latitude and longitude.

Population: 2,033,072 (2010 Census);2,179,551 (2002 Census);2,174,459 (1989 Census).

2009 - 1.76 | 2010 - 1.80 | 2011 - 1.80 | 2012 - 1.95 | 2013 - 2.00 | 2014 - 2.03 | 2015 - 2.01 | 2016 - 1.95(e)

According to the 2010 Census, the ethnic composition of the oblast was as follows:

Religion in Orenburg Oblast (2012)

As of a 2012 official survey 40.2% of the population of Orenburg Oblast adheres to the Russian Orthodox Church, 3% declare themselves to be generic nondenominational Christians (excluding the Protestant definition), 2% are Orthodox Christian believers who do not belong to any church or belong to non-Russian Orthodox churches. Muslims constitute 13% of the population. 3% of the population are followers of the Slavic native faith (Rodnovery), 6.8% are followers of other religions or did not give an answer to the survey. In addition, 20% of the population declares to be "spiritual but not religious" and 12% to be atheist.

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