Compare · UN World Population Prospects 2024

Indonesia and Nigeria, side by side

In 2026, half of the people in Indonesia are older than 32. In Nigeria, half are older than 19.

UN estimates for mid-2023: Indonesia 281,190,066 people · Nigeria 227,882,945

Indonesia 288 million people Half are older than 32 8 in 100 are 65 or older

Nigeria 242 million people Half are older than 19 3 in 100 are 65 or older

How to read this: each pyramid stacks a place’s people by age — babies at the bottom, the oldest at the top, men on the left and women on the right. A wide bottom means many children; a wide top means many older people.

Compare shapes Compare sizes

Each bar is a share of its own place’s people, so a small country and a large one can be read side by side.

Year 2026 · UN projection

estimatesprojections

men women projected

Verified 2026-09-30 · 73 canaries

IDN × NGA · 2026 · age groups

If each place were 100 people

Shrink each population to 100 people and count them. Dots are children under 15, filled squares are people aged 15 to 64, and open squares are people 65 and over. The picture follows the year slider above.

Indonesia

Children, under 15: 24
Aged 15 to 64: 68
Aged 65 and over: 8

Nigeria

Children, under 15: 40
Aged 15 to 64: 57
Aged 65 and over: 3

IDN × NGA · families and lifetimes

Children, and how long lives last

If the birth rates of this year held for a whole lifetime, a woman in Indonesia would have about 2.1 children and a woman in Nigeria about 4.2. Around 2.1 children per woman keeps a population the same size over time, leaving migration aside. A baby born in Indonesia this year can expect to live about 72 years. In Nigeria, about 55.

Children per woman, 2026

Each figure is one child: how many children a woman would have in her lifetime at that year’s rates.

Indonesia 2.1

Nigeria 4.2

The dashed line at 2.1 is about what it takes for each generation to replace the one before it, leaving migration aside.

How long a newborn can expect to live, 2026

Each block is ten years of life, if the death rates of that year stayed the same all life long.

Indonesia 72 years

Nigeria 55 years

Hatched marks are UN projections (medium variant), not measurements.

IDN × NGA · 1950–2100 · how many

How big, and where they are heading

There are 288 million people in Indonesia and 242 million in Nigeria: about 20% more people than Nigeria.

Set each against its own 1950 self and Indonesia's population is 4.2 times what it was in 1950, Nigeria's population is 6.5 times what it was in 1950.

Looking ahead: Indonesia's population is expected to peak in 2058, and Nigeria's population is still growing in 2100. The UN expects Nigeria to have more people than Indonesia from 2040. In 2100: 296 million in Indonesia, 477 million in Nigeria (UN projection, medium).

Show the numbers

Year	Indonesia: people	Nigeria: people	Indonesia: half older than	Nigeria: half older than	Indonesia: children per woman	Nigeria: children per woman	Indonesia: life expectancy	Nigeria: life expectancy
1950	68.7990 million	37.2830 million	18.9	19.1	5.11	6.42	40.2	35.5
1960	88.2961 million	45.0538 million	20.1	19.3	5.50	6.36	46.8	37.2
1970	115.657 million	55.8938 million	18.9	18.9	5.49	6.47	53.3	40.0
1980	148.951 million	73.7646 million	19.4	17.7	4.50	6.85	58.7	46.0
1990	183.501 million	97.1209 million	21.6	17.2	3.11	6.46	63.3	45.7
2000	216.078 million	126.382 million	24.6	17.8	2.50	6.12	66.3	47.1
2010	246.305 million	166.643 million	27.6	17.7	2.46	5.95	68.4	51.3
2023	281.190 million	227.883 million	30.8	18.8	2.13	4.48	71.2	54.5
2030*	295.877 million	262.381 million	32.8	20.3	2.01	3.82	72.2	55.5
2040*	311.797 million	312.710 million	35.3	22.7	1.91	3.10	73.5	57.1
2050*	320.713 million	359.186 million	37.8	24.9	1.85	2.66	75.0	58.5
2060*	322.529 million	399.785 million	40.1	27.3	1.81	2.39	76.3	59.9
2070*	320.050 million	433.486 million	41.7	29.8	1.78	2.20	77.7	61.2
2080*	314.543 million	457.922 million	43.2	32.0	1.76	2.07	79.2	62.5
2090*	306.111 million	471.886 million	44.8	33.8	1.74	1.98	80.5	63.6
2100*	295.511 million	476.748 million	46.0	35.3	1.73	1.91	81.9	64.7

* UN projection, medium variant. People at mid-year; ages and life expectancy in years.

IDN − NGA · 1950–2100 · every age

Which ages each place has more of

Each column is a year and each row an age, from babies at the bottom to 100 at the top. The shade of a cell shows which place has more of its people at that age — the key beside the picture tells you which shade is Indonesia and which is Nigeria, and the in-between shade means the same. Because it compares shares, a small place and a large one can be compared fairly.

236 countries · 1950–2100

Where they sit among all countries

Every country in the world, every year from 1950 to 2100. The grey cloud shows where most countries are; Indonesia is drawn in solid blue squares and Nigeria in open orange squares, so you can see whether each is ahead of the crowd, behind it or in the middle.

More comparisons

Keep exploring

Each place on its own: Indonesia · Nigeria. Or pick any two places with the boxes at the top of this page.

Other comparisons

Apparatus

Sources and method

Indonesia and Nigeria are drawn here from one source and one release: the UN Population Division's World Population Prospects 2024, counted through 2023 and projected on its medium variant after that. Two places read off the same tables can be set against each other; two read off different tables cannot.

How the median age and the “100 people” pictures are worked out, and why the pictures of every country leave the regions out: how the figures here are put together.

This is one of 250 pairs with a page. The boxes at the top will take any other two places you want to see side by side.

Sources: UN WPP 2024 · flag-icons. Every source, its licence and how to cite it →

Verified 2026-09-30 · 73 canaries