Tatarsky Klyuch () is a rural locality (a settlement) in Zaigrayevsky District, Republic of Buryatia, Russia. The population was 1,863 as of 2010.Всероссийские переписи населения 2002 и 2010 годов There are 15 streets.
Geography Tatarsky Klyuch is located 23 km southeast of Zaigrayevo (the district's administrative centre) by road. Ilka is the nearest rural locality.Расстояние от Татарского Ключа до Заиграева
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