Selangor

Selangor is the state that Malaysia’s economy quietly runs on. It fully encircles the federal capital Kuala Lumpur and the administrative capital Putrajaya, and together they form the Klang Valley — the country’s largest urban and industrial conurbation.

Key facts

Capital	Shah Alam
Royal capital	Klang
Population	Around 7 million
Head of state	Sultan of Selangor
Key industries	Manufacturing, logistics & trade, technology, finance

Geography

Selangor sits on the west coast of Peninsular Malaysia, facing the Strait of Malacca, and forms a horseshoe around the two federal territories of Kuala Lumpur and Putrajaya. Its coastline holds Port Klang, the country’s busiest port, while inland districts range from dense urban centres like Petaling Jaya and Shah Alam to agricultural and forested areas further from the Klang Valley core. The state borders Perak to the north, Pahang to the east, and Negeri Sembilan to the south.

Economy

Selangor is Malaysia’s largest state economy by output, and its industrial base is the most diversified in the country. Manufacturing clusters around Shah Alam, Klang and Petaling Jaya cover electronics, automotive parts, consumer goods and pharmaceuticals. Port Klang handles the bulk of Malaysia’s containerised trade, and Kuala Lumpur International Airport (KLIA) and KLIA2, both located in Sepang district within Selangor, anchor the state’s role in aviation and air freight. Cyberjaya, developed as part of the Multimedia Super Corridor, has grown into a technology and shared-services hub, while Petaling Jaya and Subang Jaya host a dense concentration of corporate regional offices. Services, wholesale and retail trade, and financial activities round out an economy that consistently accounts for the largest single share of Malaysia’s GDP among the states.

Doing business here

Selangor’s appeal for business rests on scale and connectivity: it offers the biggest consumer market outside Kuala Lumpur proper, direct access to the country’s main port and airport, and industrial land at lower cost than the capital. Free industrial zones and licensed manufacturing warehouses around Klang, Shah Alam and Bangi support import/export-oriented operations. Cyberjaya’s MSC-status designation gives qualifying technology and services companies specific tax and regulatory incentives, while Selangor’s state investment agency works alongside federal bodies such as MIDA on incentive applications. Talent supply benefits from proximity to Kuala Lumpur’s labour market and to universities across the Klang Valley. The main trade-off is congestion — Selangor’s road network carries some of the heaviest traffic in the country, so logistics planning around Port Klang and KLIA needs to account for peak-hour delays.

Notable places

Batu Caves, the Hindu shrine and limestone cave complex in Gombak, is one of Malaysia’s most visited religious and tourist sites. Shah Alam is home to the Sultan Salahuddin Abdul Aziz Mosque, one of the largest mosques in Southeast Asia and known locally as the Blue Mosque. Sunway City in Petaling Jaya combines a theme park, shopping mall, university and medical centre in a single integrated township. Klang, the state’s royal town, retains a historic core alongside its modern port operations and is well known for its Little India enclave and street food. Further north, Kuala Selangor is known for its riverside firefly colonies and nature reserves, offering a contrast to the state’s industrial heartland.