Vietnam’s inhabitants hit the 100 million milestone. The place’s it headed?

The inhabitants of Vietnam reached the 100 million mark in 2023. Fifty years in the past, in 1976, when it used to be 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). After we examine 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, Writer supplied (no reuse)
Its inhabitants is prone to proceed rising and may achieve a top of 110 million via the mid-Twenty first century, consistent with the United Countries’ medium inhabitants projections. Those projections watch for that the inhabitants might then shrink backtrack to 92 million via the yr 2100. They think that fertility, estimated at a mean of one.9 kids in keeping with lady in 2023, will decline to one.7 kids in keeping with lady via 2100.
How has the inhabitants of Vietnam reached 100 million? Why is it most probably that expansion will quickly prevent? What’s going to the rustic’s inhabitants appear to be at some point?
Expansion is related to the demographic transition
The numerous build up in Vietnam’s inhabitants all the way through the twentieth and early Twenty first century is related to the rustic’s demographic transition. Like far and wide on this planet, mortality has fallen, specifically youngster mortality, resulting in an way over births over deaths that has fuelled inhabitants expansion. The tempo of expansion reached a top of over 3% in keeping with yr within the mid-Nineteen Fifties and has since slowed yr on yr, basically because of falling fertility.
In 2023, the typical choice of small children born to Vietnamese girls is 1.9, as prior to now discussed; this determine used to be round 6 within the Sixties and early Seventies. Determine 2 (beneath) permits for a comparability of fertility traits in Vietnam with the ones in 3 different East and Southeast Asian nations: China, South Korea, and Thailand.

Determine 2. Assessment of fertility evolution in Vietnam, South Korea, China, and Thailand (1950–2023).
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Writer supplied (no reuse)
Vietnam’s one- or two-child coverage
80 years in the past, fascinated with speedy inhabitants expansion, 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 turned into extra restrictive in 1988, with the guideline converting to at least one or two kids in keeping with couple. It implemented to households residing in cities or in densely populated spaces (commercial zones, rural areas of the Crimson River and Mekong Deltas, and the coastal undeniable provinces).
Alternatively, the coverage used to be much less strict in opposition to ethnic minorities from deficient, remoted, and carefully populated areas, who had been authorised to have 3 kids.
Did beginning regulate coverage have an affect?
Did Vietnam’s beginning limitation coverage motive its decline in fertility? This query can also be posed to all nations within the International South, specifically in Asia, the place governments have attempted to restrict births when the inhabitants used to be rising abruptly 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 abruptly than in Vietnam, with fertility charges attaining even decrease ranges in 2023, respectively, 0.7, 1.0, and 1.2 kids in keeping with lady (Determine 2).
The Chinese language executive, as an example, began looking to restrict births from the mid-Nineteen Fifties, however the coverage used to be no longer showed till the Seventies and used to be due to this fact made extra restrictive, significantly in 1979 with the one-child coverage.
In Thailand, fertility fell concurrently in China and similarly abruptly. However as an alternative of being coercive, its coverage for the reason that Seventies
has consisted of incentives, such because the liberalisation of abortions and sterilisation, in addition to monetary strengthen for training and family farming for {couples} having a most of 2 kids. The speedy fall in fertility came about in South Korea a number of years previous, accompanied via measures aimed toward selling birth control and sterilisation, but in addition with out coercive measures.
Vietnam’s beginning 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 true affect of those insurance policies, on the other hand, is hard to measure. Whilst fertility fell similarly abruptly within the Seventies and Nineteen Eighties in China and Thailand, this used to be basically as a result of households in those nations sought after fewer kids at the moment—simply as in different nations all the way through classes of advanced training and residing stipulations.
Converting route: When the State seeks to spice up the beginning price
All for its abruptly growing old inhabitants (see the inhabitants pyramids in Determine 3), the Vietnamese executive step by step comfy the one- or two-child coverage within the past due 2010s sooner than totally leaving behind it in 2025 to suggest 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 appears 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, Writer supplied (no reuse)
Intercourse variety
Usually talking, 105 boys are born for each 100 ladies. In Vietnam, the percentage of male newborns has higher for the reason that 2000s, with the male-to-female beginning ratio attaining 114 boys in keeping with 100 ladies in the second one part of the 2010s (Determine 4). A an identical build up have been seen twenty years prior to now in South Korea and China, precursors on this recognize.

Determine 4. Male-to-female beginning ratio in Vietnam, South Korea, China and Thailand since 1950.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Writer supplied (no reuse)
The rise is defined via a robust need in those nations to have no less than one boy and via {couples}’ selective abortion of ladies to succeed in this. Extra exactly, the phenomenon effects from the convergence of 3 elements: decreased circle of relatives dimension, need for a son at any prices, and the large availability of ultrasound scans.
Alternatively, this development isn’t seen in all Asian nations: Thailand is a notable exception. In India, it’s only seen within the north of the rustic. Likewise, in Vietnam, the north is extra affected than the south, with a specifically top male-to-female beginning ratio noticed within the Crimson River Delta and the mountainous areas of the north (Determine 5).
This north–south divide is related to cultural variations. The Crimson River Delta, within the north, used to be occupied via China for greater than one thousand years and is the area of Vietnam maximum closely influenced via Chinese language tradition and Confucian traditions.
In areas like this, boys are continuously most popular as a result of they undergo accountability for proceeding the circle of relatives lineage and gratifying the
legal responsibility of filial piety manifested during the worship of ancestors. The Mekong Delta within the south, then again, used to be 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 beginning via main area in Vietnam, 2024.
Determine taken from Pison and Scornet, 2026, Inhabitants and Societies, 645, Writer supplied (no reuse)
What are the results for generations with an important male surplus?
The imbalance within the intercourse ratio at beginning has been lowering for a number of years and it is going to in the long run go back to its customary 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 prone to enjoy the results of this imbalance all over their lives, specifically when they’re sufficiently old to begin searching 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 into consideration: the primary generations affected, the ones born within the mid-2000s, are actually sufficiently old to have kids; girls, of whom there are fewer, will give beginning to fewer kids in overall, no longer sufficient to interchange their technology.
For a ratio of 105 boys in keeping with 100 ladies, each and every lady must undergo 2.1 kids to verify alternative. For a ratio of 113 boys in keeping with 100 ladies, as in the second one part of the 2010s, this determine must be 2.2. Inhabitants expansion in Vietnam may decelerate much more temporarily than the fertility decline would counsel. Inhabitants growing old would then happen extra abruptly, as is already the case in South Korea and China, the place intercourse variety started twenty years previous than in Vietnam.
Will fertility in Vietnam apply the similar development as that of its neighbours? After declining from the Seventies to the Nineties, the whole fertility price turns out to have stabilised at round two kids in keeping with lady since 2000. Will it stay at this stage or fall to even decrease ranges, because it has already carried out within the two main areas of the South (Southeast and Mekong Delta) and as in South Korea, China, and Thailand?
Those nations have to this point led the way in which for Vietnam when it comes to fertility traits. Vietnam’s fertility price may fall even additional over the approaching years if it continues to apply the instance of its neighbours.
This newsletter is customized from a piece of writing revealed via the authors in Inhabitants & Societies, 645, “Vietnam: home to 100 million people today, how many tomorrow?”.







