It has been represented by Nushi Mahfodz of Perikatan Nasional (PN) since August 2023.

The state constituency was created in the 1958 redistribution and is mandated to return a single member to the Selangor State Legislative Assembly under the first past the post voting system.

Ethnic breakdown of Semenyih's electorate as of 2023[1] It was abolished in 1995 when it was redistributed.

According to the gazette issued on 30 March 2018, the Semenyih constituency has a total of 23 polling districts.

"Federal Government Gazette - Notice of Contested Election, State Legislative Assembly for the State of Selangor [P.U.