Petrovka () is a rural locality (a selo) in Novopoltavsky Selsoviet, Klyuchevsky District, Altai Krai, Russia. The population was 132 as of 2013.Численность населения по муниципальным образованиям на 1 января 2011, 2012, 2013 гг. (в том числе по населённым пунктам) по данным текущего учёта There are 6 streets.
Geography Petrovka lies in the Kulunda Steppe, near lake Krivaya Puchina to the east.Google Earth It is located 28 km north of Klyuchi (the district's administrative centre) by road. Novopoltava is the nearest rural locality.
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