Hulu Selangor is a district in Selangor, Malaysia. It contains the towns of Serendah, Batang Kali and Kuala Kubu Bharu. Its principal town is K…Hulu Selangor is a district in Selangor, Malaysia. It contains the towns of Serendah, Batang Kali and Kuala Kubu Bharu. Its principal town is Kuala Kubu Bharu. The district is located in the northeastern part of Selangor and borders the state of Perak to the north, Pahang to the east, Sabak Bernam district to the northwest, Kuala Selangor district to its southwest and Gombak district to the south. Selangor River sources from this area, hence giving the district's name.