Jihlava is a city in the Czech Republic. It has about 54,000 inhabitants. Jihlava is the capital of the Vysočina Region, situated on the Jihlava …Jihlava is a city in the Czech Republic. It has about 54,000 inhabitants. Jihlava is the capital of the Vysočina Region, situated on the Jihlava River on the historical border between Moravia and Bohemia.