The town of Värnamo was insignificant for a long time, but with the Swedish population growth and industrialization in the 19th century it expanded, becoming an independent "köping" in 1859. Dense forests and industrial water power spurned the furniture industry and forges run by water power. The Swedish railroad nets spurred to enhance its industrial life, leading to a population increasing from 1,141 people in 1910 to 3,664 in 1920, and making it significant enough to get the title of a city on November 1, 1920, whereby it became one of the now only historical Cities of Sweden. The chosen city arms depicts the traditional location by the Lagan.