Kohtla-Järve

Kohtla-Järve is a city and municipality in north-eastern Estonia, founded in 1924 and incorporated as a town in 1946. The city is highly industrial, and is both a processor of oil shales and is a large producer of various petroleum products. The city is also very diverse ethnically: it contains people of over 40 ethnic groups Only 21% of the population are ethnic Estonians; most of the rest are Russians. Kohtla-Järve is the fifth-largest city in Estonia.

Kohtla-Järve is unusual among the municipalities of Estonia due to its territory being made of seven discontiguous parts. The two main parts, Järve and Ahtme, both with populations around 20,000, are located about 10 km apart. Several other settlements in north-eastern Ida-Viru county, connected to oil shale mining, are administered as districts of Kohtla-Järve; the farthest, Sirgala, is 40 km east of Järve. In the Soviet time, the town of Jõhvi was also incorporated into Kohtla-Järve.