[1] As of the 2021 assembly elections, the current MLA is C. R. Mahesh of Indian National Congress.

Karunagappally assembly constituency was formed in 1951.

As per the recent changes on assembly constituency delimitations, the assembly constituency consists of Karunagappally municipality and 6 panchayaths from Karunagappally Taluk including Alappad, Clappana, Kulasekharapuram, Oachira, Thazhava and Thodiyoor.

[2] The following list contains all members of Kerala legislative assembly who have represented the constituency: Sabha Percentage change (±%) denotes the change in the number of votes from the immediate previous election.

There were 2,13,993 registered voters in the constituency for the 2021 Kerala Niyamasabha Election There were 2,04,539 registered voters in the constituency for the 2016 Kerala Niyamasabha Election.