[3][4][better source needed] Their youth wing are the Young Socialists of Croatia (Croatian: Mladi Socijalisti Hrvatske).

The Party was formed in 1997 by a group of leftists gathered around the magazine called Hrvatska ljevica (Croatian Left) and its chief editor Stipe Šuvar.

In the 2001 local elections SRP won some seats in smaller, ethnically mixed communities, such as Daruvar, Donji Lapac and Vrhovine.

The activist core, including the youth wing and the entire editorial board of Hrvatska ljevica (which worked beside the late Stipe Šuvar) is still a part of the SRP.

The party also contains a faction known as "Workers' Struggle" (Radnička borba) which is close to the reunified Fourth International.