Since 2021[update], the State Assemblyman for Pengkalan Batu is Kalsom Noordin from United Malays National Organisation (UMNO) which is part of the state's ruling coalition, Barisan Nasional (BN).

The state constituency was first contested under the name of Bachang but was renamed to Pengkalan Batu for the 2018 election.

[3] The Pengkalan Batu constituency contains the polling districts of Bachang Baru, Pasir Puteh, Pengkalan Batu, Rumpun Bahagia, Peringgit, Peringgit Jaya, Bukit Palah, Seri Siantan and Bukit Piatu.

[4] Ethnic breakdown of Pengkalan Batu's electorate as of 2021[5] According to the federal gazette issued on 31 October 2022, the Pengkalan Batu constituency is divided into 9 polling districts.

[6] The electoral results for the Pengkalan Batu state constituency in 2018 are as follows.