Vinnytsia Oblast (Ukrainian: Вінницька область, translit. Vinnyts’ka oblast’; also referred to as Vinnychchyna - Ukrainian: Вінниччина) is an oblast of Ukraine. Its administrative center is Vinnytsia. Population: 1,610,573 (2015 est.)

Vinnytsia Oblast was created on February 27, 1932 from raions of following former okruhas of Ukraine (districts of the Soviet Ukraine) and named after the historic city of Venice,Italy:

In 1935 bordering territories of oblast were transformed into Soviet border districts: Shepetivka Okrug, Proskuriv Okrug, and Kamianets Okrug. In 1937 based on the border districts was formed the Kamianets Oblast (later Khmelnytsky Oblast).

During the World War II the territory of oblast was split between General District Shitomir (Reichskommissariat Ukraine) and Transnistria Governorate (Kingdom of Romania). In October 1941, a camp was established by the Romanians on the Vapniarka site where many Jews were detained in very bad conditions.

The oblast is located in the central part of the Right Bank Ukraine and borders on seven administrative oblasts of Ukraine. In the southwest of the oblast along the Dniester river passes a 202 km long section of the state border with Moldova.

The Vinnytsia oblast is a land with an appreciable mineral raw material base. 1,159 deposits and manifestations of various mineral resources, tens of peat deposits, unique deposits of granite and kaolin, garnet and fluorite have been explored. A number of medicinal mineral water springs have been found in the oblast, they function as well as radon's water springs in the town of Khmilnyk. Having such invaluable mineral springs the Vinnytsia oblast may soon take the leading position in their export to CIS countries or to the world market.

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Wikipedia