Population development of Helsinki 1550–1810 Population development of Helsinki 1550–1810 Share icon Share Share in Facebook Share in Linkedin Share in Twitter Send as an email Population development of Helsinki from its foundation in 1550 to 1810. Helsinki remained a relatively small city for centuries after it was founded. Used in articles Demographic trends in Helsinki Article Article Go to content Photographer Enni Pentinpuro Period 1550 – 1810