The Finnish Heritage Agency has classified Hanko railway station as a nationally significant built cultural environment.

The original wooden station building, designed by architect Per Erik Svante Degenauer, was completed the same year as the railway line was opened.

[1] The Hanko Peninsula was leased to the Soviet Union in 1940–1941 and passenger traffic to the town ceased during the period.

[1] The original station building and the warehouse were destroyed in December 1941, as Finland reclaimed the peninsula.

The current functionalist style station building designed by Jarl Ungern was built in 1949–1952.