It is first mentioned as an outlying abode of Czech bird catchers and fanciers in 1539. Due to the occurrence of gems, this village was the subject of a long-lasting dispute between two dominions, which did not end until Jizerka was sold to the Frýdlant dominion. In 1769 the settlement consisted of a mere 7 buildings, but grew to 43, mostly wooden houses of lumberjacks and glass workers, by 1945. In 1828 the glass maker Riedel set up a glassworks to manufacture glass pipes and hollow glass; the ruins of the foundry are still present. Another glassworks plant was built in 1866 and was in operation until 1911. It is used as a boarding house at present. The village was named after the stream that flows through it. Nowadays Jizerka is a picturesque village in the heart of the Jizera Mountains with a few permanent residents. Most of the local houses are used for accommodation of tourist.