General elections were held in San Marino on 28 May 1978.Dieter Nohlen & Philip Stöver (2010) Elections in Europe: A data handbook, p1678 The Sammarinese Christian Democratic Party remained the largest party, winning 26 of the 60 seats in the Grand and General Council.Nohlen & Stöver, p1691 Following the elections the Sammarinese Communist Party formed a coalition with the Sammarinese Socialist Party and the Unitary Socialist Party.

Electoral system Voters had to be citizens of San Marino and at least 24 years old.

Results

References