The first documented reference to Ustka dates back to 1337. The document says that the entire port is the property of the city of Słupsk. This did not change for 500 years. In those days a trade route running to the ports of Germany and Scandinavis crossed Ustka and Słupsk. In the Napoleonic period Ustka was a garrison of the Napoleon’s Great Army. Ustka was connected to the railway at the end of the 19th century which paved the way to quick development of tourist accommodation and service facilities. Hotels, pensions and treatment houses were built. As early as at he beginning of the previous century the number of patients exceeded the number of permanent residents. Ustka was granted town privileges in 1935.