Medawachchiya's presidential election results matched that of the whole of Sri Lanka's six times out of eight election periods 1982 to 2019.
2019 SLPP SLPP 2015 UPFA NDF 2010 UPFA UPFA 2005 UPFA UPFA 1999 PA PA 1994 PA PA 1988 SLFP UNP 1982 UNP UNP 
