The United Nations Department of Economic and Social Affairs, Population Division (UN DESA) report, *World Population Prospects 2024*, compiles the number and projections of populations in several world regions, including Southeast Asia, up to the year 2100.
Southeast Asian countries included in the projections are Brunei Darussalam, Laos, Cambodia, Malaysia, Indonesia, the Philippines, and Timor-Leste.
Of these, Brunei Darussalam is projected to have the smallest population. In 2024, it is projected to have 461,000 inhabitants.
The UN projects Brunei Darussalam's peak population in 2055 at 521,000. By 2100, the projection is down to 466,000.
Next is Timor-Leste, with a projected population of 1.39 million at the end of this year. Unlike Brunei, this country's peak population is expected to occur in 2077 at 2.09 million. By 2100, this nation, formerly part of Indonesia, is predicted to have 1.97 million inhabitants.
Then there's Laos, with a projected population of 7.71 million at the end of 2024. The peak population is forecast to occur in 2068, at 10.16 million. By 2100, it is projected to be 9.28 million.
Following are Cambodia, Malaysia, and the Philippines, as shown in the graph.
Indonesia is last on this list due to its significantly larger population. Its population is projected to reach 282.35 million at the end of 2024. This figure is lower than the actual data for the first half of 2024.
The projection then increases to 322.03 million in 2054. The UN estimates that Indonesia's peak population will occur in 2059, at 322.60 million. By 2100, the projection decreases to 296.07 million.
Globally, the world's population reached 5.71 billion in 1995. It is projected to rise to 8.12 billion by the end of this year.
In 2054, the global population is projected to reach 9.79 billion. The peak global population is estimated to occur in 2084, at 10.28 billion.
The projection for 2100 is 10.18 billion.