Oninoborsk () is a rural locality (a selo) situated in Khorinsky District, Republic of Buryatia, Russia. The population was 308 as of 2010.Всероссийские переписи населения 2002 и 2010 годов There are 6 streets.
Geography Oninoborsk is located 21 km northeast of Khorinsk (the district's administrative centre) by road. Bulum is the nearest rural locality.Расстояние от Ониноборска до Хоринска
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