The UPFA won the Kalutara District, receiving 338,801 votes, while the UNP won only 310,234 votes.

Meanwhile, the JVP has received 38,475 votes.

The UPFA won 5 seats while the UNP won 4. The JVP took the remaining seat in Kalutara District.

The UPFA won 7 seats in 2010 while the JVP won only 2. Meanwhile, the DNA, which included the JVP, won one seat in 2010 from Kalutara District.