[3] Leninsky District is located in the south central region of the Jewish Autonomous Oblast.

About 60% of the district is on the Middle Plain of the Amur River, with the remainder on the northern foothills of the Lesser Khingan mountains.

The area has commercial deposits of building materials: granite, sandstone, clay and gravel.

After the area came under the official control of Russia in 1858, after the Treaty of Aigun with China, the Russian government resettled Trans-Baikal Cossacks into the district to provide a military presence.

Volunteers were insufficient, so settlers were selected by lot and relocated down the Amur River on rafts with their families.