[3] The mukim is named after Kampong Pengkalan Batu, one of the villages it encompasses.
[4] It also borders Limbang District in Sarawak, Malaysia to the east and south.
As of 2016 census,[3] the population of Mukim Pengkalan Batu comprised 7,435 males and 7,057 females.
The entire population lived in rural areas.
As of 2021, the mukim encompasses the following populated villages: