The archeological traces of the inhabitants of Bansko and the Razlog Valley in general date to the early periods of the Roman Empire. There are several housing structures at the outskirts of the town, which date to 100 BC. However, there is no consensus nor credible theory on who these people were.
Bansko became part of Bulgaria, during the reign of Khan Krum, most probably around 811 AD and has been part of Bulgaria, ever since.
The Bulgarian Evangelical Church Community, the first Protestant church in Bulgaria, was founded in Bansko on 6 August 1868
