Despite its small population, Hedemora is for historical reasons normally still referred to as a city, and as such the oldest in the county. Statistics Sweden, however, only counts localities with more than 10,000 inhabitants as cities.
The town Hedemora was chartered in 1446, which means it is the oldest and only medieval town in Dalarna.
In 1754 and 1849 the town was severely hit by fire. The fire in 1754 destroyed 90 out of the 110 house lots in the town, including all the grain storages. However, the massive destruction made it possible to modernize the town structure, with straighter blocks and streets.