The party was founded in 1917, and began publishing Kustbon the following year.
[2] Due to the small size of the Swedish minority, the party was unable to have any impact running alone.
In the 1929 elections it formed an alliance with the German-Baltic Party, which resulted in a 20% increase in their combined vote share.
After Pöhl died in 1930, Mathias Westerblom took over as party leader.
[3] The party had its offices at Riddaregatan (Rüütli) 9, Tallinn, attached to Swedish Saint Michael Parish and the Swedish-language school.