Kruglo-Sementsy () is a rural locality (a selo) and the administrative center of Kruglo-Sementsovsky Selsoviet, Yegoryevsky District, Altai Krai, Russia. The population was 368 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 5 streets.

Geography Kruglo-Sementsy is located 58 km south of Novoyegoryevskoye (the district's administrative centre) by road. Borisovka is the nearest rural locality.Расстояние от Кругло-Семенцов до Новоегорьевского

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