Dumai

Dumai is a coastal city in Riau Province on the island of Sumatra, Indonesia. It lies at approximately 1.667° N latitude and 101.443° E longitude, about 188 km east of the provincial capital Pekanbaru.

Where is Dumai situated within Indonesia’s geography?

The city occupies a strategic position on Sumatra’s eastern seaboard, bordering the Strait of Malacca. Its coastal setting gives it direct access to regional and international maritime routes, especially traffic to and from Malaysia. The city’s land area totals 2,063.24 km², a size that accommodates both urban development and extensive natural landscapes.

What are Dumai’s demographic and administrative characteristics?

According to the mid‑2025 official estimate, Dumai’s population reached 358,365 inhabitants, comprising roughly equal numbers of males and females. Administratively, the city is divided into seven districts (kecamatan), each comprising urban villages (kelurahan). Although not a provincial capital, Dumai functions as a major transport and trade hub within Riau.

How does the climate influence the city’s environment?

Dumai experiences a tropical rainforest climate (Af), marked by heavy rainfall throughout the year. This persistent moisture supports lush vegetation and underpins agricultural activities such as palm oil cultivation, which together with petroleum resources form the backbone of the regional economy.

What geographic assets drive Dumai’s economic activity?

The city’s port, Pelabuhan Dumai, links the region to domestic and global markets, facilitating the export of oil, palm oil, and other commodities. A domestic airport, Pinang Kampai Airport, provides air connections to major Indonesian cities, reinforcing Dumai’s role as a logistics centre. The surrounding hinterland is rich in petroleum deposits and fertile land suitable for palm oil plantations, reinforcing the city’s status as an industrial and agricultural nexus.

How is Dumai connected to the broader transportation network?

Land routes tie Dumai to the Trans‑Sumatra Highway and the Trans‑Sumatra Toll Road, enabling bus services to cities such as Duri, Padang, Medan, Jambi, and Pekanbaru. Sea lanes from Dumai Port serve destinations across Riau Province and beyond, while the airport offers regular flights to Jakarta, Medan, Batam, and other hubs.

For further details, see the Wikipedia entry on Dumai or the GeoNames record.