Khabarovsk is the closest major city to Birobidzhan, which is the administrative center of the Jewish Autonomous Oblast, Russia, located on the Trans-Siberian Railway, close to the border with China. The Jewish Autonomous Oblast is a federal subject of Russia in the Russian Far East, bordering Khabarovsk Krai and Amur Oblast in Russia and Heilongjiang province in China. Its administrative center is the town of Birobidzhan, and it is the only region in the world in which Yiddish is the official language. Khabarovsk provides the closest major airport to Birobidzhan, which is Khabarovsk Novy Airport (KHV / UHHH), 198 km from the center of Birobidzhan.