The inhabitants of Vietnam reached the 100 million mark in 2023. Fifty years in the past, in 1976, when it was once reunified because the Socialist Republic of Vietnam, the rustic had fewer than part as many population (46 million). 100 years in the past, it had just one 6th as many (16 million) (Determine 1). Once we evaluate the present demographics to different Asian nations, we will be able to determine patterns explicit to Vietnam.
Determine 1. Inhabitants of Vietnam since 1900 and projections as much as 2100.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Creator equipped (no reuse)
Its inhabitants is more likely to proceed rising and may succeed in a height of 110 million by way of the mid-Twenty first century, consistent with the United Countries’ medium inhabitants projections. Those projections look ahead to that the inhabitants might then shrink backpedal to 92 million by way of the yr 2100. They think that fertility, estimated at a median of one.9 kids consistent with lady in 2023, will decline to one.7 kids consistent with lady by way of 2100.
How has the inhabitants of Vietnam reached 100 million? Why is it most probably that enlargement will quickly prevent? What is going to the rustic’s inhabitants appear to be someday?
Enlargement is connected to the demographic transition
The numerous building up in Vietnam’s inhabitants all through the twentieth and early Twenty first century is connected to the rustic’s demographic transition. Like in all places on this planet, mortality has fallen, in particular youngster mortality, resulting in an way over births over deaths that has fuelled inhabitants enlargement. The tempo of enlargement reached a prime of over 3% consistent with yr within the mid-Nineteen Fifties and has since slowed yr on yr, essentially because of falling fertility.
In 2023, the typical collection of young children born to Vietnamese ladies is 1.9, as prior to now discussed; this determine was once round 6 within the Nineteen Sixties and early Nineteen Seventies. Determine 2 (beneath) lets in for a comparability of fertility tendencies in Vietnam with the ones in 3 different East and Southeast Asian nations: China, South Korea, and Thailand.

Determine 2. Evaluate of fertility evolution in Vietnam, South Korea, China, and Thailand (1950–2023).
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Creator equipped (no reuse)
Vietnam’s one- or two-child coverage
80 years in the past, taken with fast inhabitants enlargement, the government in North Vietnam applied a coverage to restrict births. In 1963, the federal government first restricted households to a few kids, setting up two or 3 kids each and every spaced 5 to six years aside because the norm.
The coverage then was extra restrictive in 1988, with the rule of thumb converting to at least one or two kids consistent with couple. It implemented to households residing in cities or in densely populated spaces (business zones, rural areas of the Pink River and Mekong Deltas, and the coastal undeniable provinces).
Alternatively, the coverage was once much less strict against ethnic minorities from deficient, remoted, and carefully populated areas, who had been authorized to have 3 kids.
Did start keep watch over coverage have an affect?
Did Vietnam’s start limitation coverage motive its decline in fertility? This query may also be posed to all nations within the International South, in particular in Asia, the place governments have attempted to restrict births when the inhabitants was once rising all of a sudden and the place fertility has considerably declined. It’s the case in South Korea, China, and Thailand, the place the decline took place previous and extra all of a sudden than in Vietnam, with fertility charges achieving even decrease ranges in 2023, respectively, 0.7, 1.0, and 1.2 kids consistent with lady (Determine 2).
The Chinese language executive, as an example, began seeking to restrict births from the mid-Nineteen Fifties, however the coverage was once no longer showed till the Nineteen Seventies and was once due to this fact made extra restrictive, significantly in 1979 with the one-child coverage.
In Thailand, fertility fell similtaneously in China and similarly all of a sudden. However as an alternative of being coercive, its coverage for the reason that Nineteen Seventies
has consisted of incentives, such because the liberalisation of abortions and sterilisation, in addition to monetary make stronger for education and family farming for {couples} having a most of 2 kids. The fast fall in fertility took place in South Korea a number of years previous, accompanied by way of measures aimed toward selling birth control and sterilisation, but additionally with out coercive measures.
Vietnam’s start limitation coverage ended up someplace between that of China’s coercive one and the ones of South Korea and Thailand, either one of which used incentivising measures.
The real affect of those insurance policies, then again, is tricky to measure. Whilst fertility fell similarly all of a sudden within the Nineteen Seventies and Nineteen Eighties in China and Thailand, this was once essentially as a result of households in those nations sought after fewer kids at the moment—simply as in different nations all through classes of advanced schooling and residing prerequisites.
Converting path: When the State seeks to spice up the start fee
All for its all of a sudden getting old inhabitants (see the inhabitants pyramids in Determine 3), the Vietnamese executive progressively comfy the one- or two-child coverage within the overdue 2010s sooner than totally forsaking it in 2025 to recommend two-child households. As in different spaces, Vietnam adopted China’s instance with this coverage reversal, the latter having abolished its one-child coverage in 2015. China due to this fact applied the “three-child policy” in 2021, it seems that to no impact up to now, as Chinese language fertility hasn’t ever been decrease.

Determine 3. Inhabitants age pyramid for Vietnam in 2025 and projection for 2075.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Creator equipped (no reuse)
Intercourse variety
Typically talking, 105 boys are born for each 100 ladies. In Vietnam, the share of male newborns has higher for the reason that 2000s, with the male-to-female start ratio achieving 114 boys consistent with 100 ladies in the second one part of the 2010s (Determine 4). A an identical building up were noticed two decades prior to now in South Korea and China, precursors on this appreciate.

Determine 4. Male-to-female start ratio in Vietnam, South Korea, China and Thailand since 1950.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Creator equipped (no reuse)
The rise is defined by way of a powerful need in those nations to have a minimum of one boy and by way of {couples}’ selective abortion of women to succeed in this. Extra exactly, the phenomenon effects from the convergence of 3 components: diminished circle of relatives measurement, need for a son at any prices, and the vast availability of ultrasound scans.
Alternatively, this trend isn’t noticed in all Asian nations: Thailand is a notable exception. In India, it’s only noticed within the north of the rustic. Likewise, in Vietnam, the north is extra affected than the south, with a in particular prime male-to-female start ratio noticed within the Pink River Delta and the mountainous areas of the north (Determine 5).
This north–south divide is connected to cultural variations. The Pink River Delta, within the north, was once occupied by way of China for greater than 1000 years and is the area of Vietnam maximum closely influenced by way of Chinese language tradition and Confucian traditions.
In areas like this, boys are ceaselessly most well-liked as a result of they endure duty for proceeding the circle of relatives lineage and satisfying the
legal responsibility of filial piety manifested throughout the worship of ancestors. The Mekong Delta within the south, alternatively, was once for a number of centuries a part of the Khmer Empire and is culturally very similar to Cambodia and Thailand.

Determine 5. Male-to-female ratio at start by way of primary area in Vietnam, 2024.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Creator equipped (no reuse)
What are the effects for generations with an important male surplus?
The imbalance within the intercourse ratio at start has been lowering for a number of years and it’s going to in the long run go back to its commonplace stage, because it has in South Korea. Alternatively, generations of Vietnamese kids with an important surplus of boys have already been born. Those generations are more likely to enjoy the effects of this imbalance right through their lives, in particular when they’re sufficiently old to begin on the lookout for a long-term spouse: ladies, within the minority, will don’t have any hassle discovering a spouse, while some boys might in finding themselves with out one.
Inhabitants projections wish to take the phenomena under consideration: the primary generations affected, the ones born within the mid-2000s, are actually sufficiently old to have kids; ladies, of whom there are fewer, will give start to fewer kids in overall, no longer sufficient to switch their technology.
For a ratio of 105 boys consistent with 100 ladies, each and every lady must endure 2.1 kids to make sure alternative. For a ratio of 113 boys consistent with 100 ladies, as in the second one part of the 2010s, this determine must be 2.2. Inhabitants enlargement in Vietnam may decelerate much more temporarily than the fertility decline would counsel. Inhabitants getting old would then happen extra all of a sudden, as is already the case in South Korea and China, the place intercourse variety started two decades previous than in Vietnam.
Will fertility in Vietnam observe the similar trend as that of its neighbours? After declining from the Nineteen Seventies to the Nineties, the overall fertility fee turns out to have stabilised at round two kids consistent with lady since 2000. Will it stay at this stage or fall to even decrease ranges, because it has already achieved within the two primary areas of the South (Southeast and Mekong Delta) and as in South Korea, China, and Thailand?
Those nations have up to now led the way in which for Vietnam in relation to fertility tendencies. Vietnam’s fertility fee may fall even additional over the approaching years if it continues to observe the instance of its neighbours.
This article is customized from a piece of writing revealed by way of the authors in Inhabitants & Societies, 645, “Vietnam: home to 100 million people today, how many tomorrow?”.



