 The Hulu Langat District Police Headquarters are located in the town centre.Other services include a post office, government clinics, a stadium, food court and a wet market.Federal government agencies with their branch in Kajang include the National Registration Department, Immigration Department, Transportation Department, and Hulu Langat Education Office

Kajang is the starting point for MRT Sungai Buloh - Kajang with 4 stations within this town.