Malaysia covers about 330,803 square kilometres in Southeast Asia and is divided by the South China Sea into two principal territories: Peninsular Malaysia on the southern Malay Peninsula and East Malaysia, comprising Sabah and Sarawak on northern Borneo. The peninsula borders Thailand and faces Sumatra across the Strait of Malacca, while Sabah and Sarawak border Indonesia and surround the two separated parts of Brunei; Singapore lies immediately south across the Johor Strait. Kuala Lumpur is the national capital, while Putrajaya is the federal administrative capital. The peninsula is structured by north–south mountain chains, especially the Titiwangsa Range, with broader, more densely settled lowlands along the west coast. Borneo is more rugged and heavily forested, rising from coastal plains and river valleys toward interior uplands and the Crocker Range in Sabah. Mount Kinabalu, at 4,095 metres, is the country’s highest point and the dominant summit of this eastern relief.
Malaysia’s equatorial position produces warm temperatures, high humidity and abundant rainfall, but seasonal patterns vary sharply by coast, elevation and exposure to monsoon winds. The Southwest Monsoon, generally from late May to September, is comparatively drier over much of the country, whereas the Northeast Monsoon from November to March brings prolonged heavy rain to the east coast of Peninsular Malaysia, western Sarawak and eastern Sabah. Inter-monsoon periods are marked by frequent thunderstorms. Lowland temperatures commonly remain in the mid-20s to low-30s °C, while uplands such as the Cameron Highlands and Kinabalu slopes are substantially cooler. Orographic effects intensify rainfall on windward mountains and create local contrasts over short distances. Flooding is the most recurrent large-scale climatic hazard, especially during the Northeast Monsoon, while landslides, urban flash floods, coastal erosion and periods of haze linked to regional peat and forest fires also affect settlement and transport. Climate change is increasing concern over extreme rainfall, heat, sea-level rise and water management.
These climatic gradients sustain exceptionally varied tropical ecosystems, from lowland dipterocarp rainforest and peat swamps to mangroves, montane forest, limestone karst and coral reefs. Malaysia is recognized as a megadiverse country, and Borneo contains especially high endemism; Kinabalu Park spans vegetation zones from lowland rainforest to alpine scrub, while Gunung Mulu National Park protects extensive karst, caves and seventeen vegetation zones. Forests still occupy a large share of national territory, although estimates vary by definition and year, and conversion for plantations, infrastructure and settlement has fragmented many lowland habitats. Agriculture is concentrated in accessible plains and plantation belts. Oil palm dominates commercial land use and agricultural exports, with rubber, rice, fruit and vegetables also important. The peninsula’s western lowlands combine farming with dense settlement and industry, while interior Sabah and Sarawak retain larger forest landscapes and long river corridors. Mangroves, peatlands and upland catchments matter nationally because they moderate floods, support fisheries, store carbon and secure urban water supplies.
Human occupation of the territory long predates the modern state. Archaeological evidence from the Niah Caves in Sarawak records interactions between people and tropical rainforest environments over at least 50,000 years, while the Lenggong Valley in Perak preserves another long sequence of prehistoric settlement. In the first millennium CE, communities on the Malay Peninsula and Borneo were integrated into maritime trade linking the Indian Ocean and South China Sea; Hindu-Buddhist influence arrived through these networks, and regional polities interacted with larger centres such as Srivijaya. The rise of the Melaka Sultanate in the fifteenth century transformed the peninsula’s political and religious geography. Controlling a major port on the Strait of Malacca, Melaka drew merchants from China, India, the Middle East and the archipelago, while Islam became embedded in court culture and spread through trading and dynastic networks. Portuguese forces captured Melaka in 1511, the Dutch took it in 1641, and British influence expanded from the late eighteenth century through Penang, Singapore and later Melaka, tying the peninsula more closely to imperial shipping, tin and plantation economies.
British rule did not create a single colony across what is now Malaysia; it assembled different political arrangements whose legacies remain visible in the federation. The Straits Settlements were directly governed, while Malay sultanates entered protectorate relationships and retained rulers under varying British control; Sabah and Sarawak followed separate colonial trajectories. Tin mining and rubber cultivation drew large-scale Chinese and Indian migration, reshaping towns, labour markets and communal institutions. Japanese occupation from 1941 to 1945 weakened British authority and intensified nationalist politics. The postwar Malayan Union provoked strong Malay opposition and was replaced in 1948 by the Federation of Malaya, amid the communist insurgency known as the Malayan Emergency. The federation became independent on 31 August 1957. Malaysia was formed on 16 September 1963 through the federation of Malaya, Sabah, Sarawak and Singapore; Singapore left in 1965. Communal violence in 1969 was followed by the New Economic Policy from 1971, combining poverty reduction with measures to expand Bumiputera participation in the economy. Electoral competition, federal-state bargaining and constitutional monarchy have since developed within institutions shaped by these historical compromises.
Malaysia’s economy has moved far beyond the commodity dependence of the early post-independence era, although resources remain important. Services and manufacturing together accounted for 82.5% of GDP in 2025, when real output grew by 5.2%; growth reached 6.0% year on year in the second quarter of 2026. Electrical and electronic products form the core of merchandise exports, supported by semiconductor assembly, machinery and other manufacturing clustered around Penang, the Klang Valley and Johor. Palm oil remains a major agricultural export, while Sabah and Sarawak contribute oil, natural gas and LNG. China, Singapore and the United States are among the most important trading partners, and ASEAN is central to regional commerce. The same openness that supported industrialization also exposes Malaysia to semiconductor cycles, external demand shocks and trade restrictions. Development remains uneven: Kuala Lumpur, Selangor, Penang and Johor are highly urbanized and diversified, while parts of Sabah and Sarawak face lower incomes, costlier logistics and thinner access to services.
The 2020 Population and Housing Census counted 32.45 million residents, while official mid-year estimates for 2026 place the population at about 34.39 million. Growth has slowed, fertility has declined and the share aged 65 and above is rising, though migration remains important to construction, manufacturing, plantations and services. Settlement is highly uneven. The Klang Valley around Kuala Lumpur and Selangor is the dominant metropolitan region, and dense urban-industrial belts extend along the peninsula’s west coast through George Town, Ipoh, Melaka and Johor Bahru. East-coast peninsular settlement is more dispersed, while Kuching and Kota Kinabalu anchor the principal urban systems of Sarawak and Sabah. The 2020 census recorded an urbanization level of 75.1%, reflecting decades of industrialization and rural-to-urban movement. Malaysia is a federation of 13 states and three federal territories; nine states retain hereditary Malay rulers, and Sabah and Sarawak have distinctive constitutional arrangements. The population includes Malays, Chinese, Indians and numerous Indigenous Bumiputera peoples, especially diverse in Borneo.
Malay, constitutionally the national language and commonly called Bahasa Melayu or Bahasa Malaysia, is the principal language of government and public education, while English remains widely used in business, higher education and urban professional life. Chinese communities use Mandarin and several southern Chinese varieties, Tamil is prominent among Indian Malaysians, and Indigenous languages include Iban, Bidayuh, Kadazan-Dusun, Bajau and many smaller languages in Sabah and Sarawak. Religion overlaps with, but does not simply define, these communities. The 2020 census recorded about 20.6 million Muslims, 6.1 million Buddhists, 2.9 million Christians and 2.0 million Hindus, with Christianity particularly important in parts of East Malaysia. Culture reflects centuries of maritime exchange, migration and state formation rather than a single tradition. Malay literary and court traditions, Chinese clan and temple institutions, Indian religious practices, Peranakan heritage, Islamic scholarship and Bornean longhouse societies have all shaped the social landscape, visible in vernacular architecture, shophouses, mosques, temples, textiles, multilingual publishing and varied musical traditions.
Transport networks mirror the country’s divided geography. Peninsular Malaysia has the densest road and rail infrastructure, with a north–south expressway spine and an electrified railway corridor linking Gemas, Kuala Lumpur, Butterworth and Padang Besar at the Thai border. The transport ministry’s long-term policy baseline records more than 200,000 kilometres of roads and 2,900 kilometres of rail nationwide, while the Klang Valley has MRT, LRT, monorail and commuter systems. Port Klang and the Port of Tanjung Pelepas are major container gateways on the Strait of Malacca; Penang, Johor, Kuantan and Bintulu serve industrial and energy trades. Kuala Lumpur International Airport is the main aviation hub, complemented by important airports at Penang, Johor Bahru, Kota Kinabalu and Kuching. Sabah and Sarawak depend more heavily on roads, domestic aviation and river access across sparsely populated interiors. Electricity is supplied through separate peninsular, Sabah and Sarawak systems, with gas, coal, hydropower and expanding solar forming the main generation base.
Malaysia’s regional weight rests on a major manufacturing economy, two coastlines facing critical Asian sea routes and territory spanning both the Malay Peninsula and Borneo. It is a founding member of ASEAN and participates in APEC and the World Trade Organization, embedding its export industries in overlapping regional and global trading systems. The Strait of Malacca places western Peninsular Malaysia beside one of the world’s busiest maritime corridors, while Sabah and Sarawak face the South China Sea and connect the federation to Brunei and Indonesia. These advantages are balanced by uneven regional development, population ageing, dependence on external trade, pressure on forests and coasts, flood risk and the need to decarbonize an energy system still reliant on fossil fuels. Investment in semiconductors, digital infrastructure, transport links and cleaner energy can deepen Malaysia’s role in regional supply chains, but medium-term resilience will depend on raising productivity and distributing the gains of growth more evenly across the federation.
