Are you a demographer?

Last update : 2024

Question number 1

Hom many people live on planet Earth in 2024 ?

Choose an answer

1 8.1 million

2 8.1 billion

3 810 billion

The right answer is no.2 :

By the United Nation, the world population is 8.1 billion in 2024

Question number 2

The world population

Choose an answer

1 is increasing

2 is stable

3 is decreasing

The right answer is no.1 :

The world population is increasing at a rate 0.9% in 2024, which represents an additional 70 million people this year.

Question number 3

What is the most densely populated continent in 2024?

Choose an answer

1 Europe

2 Africa

3 Asia

The right answer is no.3 :

Asia has long been the most densely populated continent (In 2024, by the United Nations, 59% of the world’s inhabitants live in Asia, ie 4.8 billion)

Question number 4

Human length of life in 2024

Choose an answer

1 is increasing

2 is stable

3 is decreasing

The right answer is no.1 :

In 2024, by the United Nations, length of life is 73,3 years on average across the world. It has risen sharply over the last century (it was around 35 years in 1900 and 46 years in 1950).

Question number 5

In 2024, for every 1,000 babies born in the world, how many die before age 1 ?

Choose an answer

1 270

2 27

3 2.7

The right answer is no.2 :

In 2024, by the United Nations,for every 1,000 babies born, 27 die before reaching their first birthday (one on 36). This is a world average, and there are big differences from one continent to another: 43 per thousand in Africa compared with 5 per thousand in North America.

Question number 6

Which continent has the lowest population density in 2024 ?

Choose an answer

1 Asia

2 Africa

3 Oceania

The right answer is no.3 :

By UN,Population density is lowest in Oceania, with 5 inhabitants per square kilometre(km²) in 2024, compared with 51 inhabitants per km² in Africa and 153 inhabitants per km² in Asia.

Question number 7

Across the world, in 2024, women are having

Choose an answer

1 fewer and fewer children

2 more and more children

3 the same number of children

The right answer is no.1 :

By the Unites Nations,fertility decreased from 5 children per woman on average in 1950 to just under 2.2 in 2024.

Question number 8

The world population is

Choose an answer

1 getting younger

2 stable in terms of average age

3 getting older

The right answer is no.3 :

The world population is ageing, the proportion of old people is increasing and that of young people is failing.

Question number 9

What is the world’s most populated country in 2024?

Choose an answer

1 India

2 China

3 United States

The right answer is no.1 :

According to UN, India, with 1.44 billion inhabitants in 2024 is the world’s most populated country, followed by China with 1.42 billion inhabitants.

Question number 10

On what continent is population increasing most quickly in 2024?

Choose an answer

1 Asia

2 Africa

3 South America

The right answer is no.2 :

In 2024,by the UN,the population is expected to increase by 2.3% each year in Africa, compared with 0.6% in South America like in Asia.

To improve your score, look in the "All about population" pages on our website.

Question number 1

What is the world’s most populated city in 2024?

Choose an answer

1 New York

2 Toyko

3 Mexico City

The right answer is no.2 :

According to UN, Tokyo, with an urban agglomeration totalling 37 million inhabitants in 2024 is the world’s biggest city.

Question number 2

What is likely to be the world’s most populated country in 2050 ?

Choose an answer

1 China

2 India

3 Brazil

The right answer is no.2 :

Under the United Nations medium projection, India will be the world’s most populated country in 2050, with almost 1.7 billion inhabitants, ahead of China with 1.3 billion and Brazil with 218 million.

Question number 3

How many babies are born in the world every second ?

Choose an answer

1 1

2 4

3 40

The right answer is no.2 :

In the world, a few more than 4 babies per second have been born

Question number 4

In the world, what is the ratio of boys to girls among newborns ?

Choose an answer

1 boys outnumber girls

2 as many girls as boys

3 girls outnumber boys

The right answer is no.1 :

More boys are born than girls.In 2024,the ratio is 105 boys for 100 girls.

Question number 5

What country has the highest life expectancy in 2022?

Choose an answer

1 Switzerland

2 United States

3 Japan

The right answer is no.3 :

By the UN,in 2024, in Japan, life expectancy at birth is 84.9 years, compared with 84,1 years in Switzerland and 79.5 years in the United States.

Question number 6

Which of these countries is most densely populated in 2024?

Choose an answer

1 The Netherlands

2 Canada

3 India

The right answer is no.1 :

The population density of a country is expressed as a number of inhabitants per unit of surface area. The population of the Netherlands is much smaller than that of India, but because it is smaller in size, the population density is higher : 541 inhabitants per km² in 2024 versus 488 in India. The population density of Canada in 2024 is 4 inhabitants per km².

Question number 7

How much has the world’s population grown in 2024?

Choose an answer

1 7 million

2 70 million

3 700 million

The right answer is no.2 :

The world population is expected to increase by 70 million inhabitants (0.9%) in 2024.

Question number 8

In 2024,what percentage of the world population is urban ?

Choose an answer

1 Below 50%

2 50%

3 Above 50%

The right answer is no.3 :

By the UN, more than half the world’s inhabitants live in a town or city (58% in 2024) up from just 30% in 1950. It is expected to increase to 68% by 2050.

Question number 9

Who live longer, men or women ?

Choose an answer

1 men

2 women

3 no difference between men and women

The right answer is no.2 :

Women, in 2024, they lived 76 years on average, compared with 70.7 years for men.

Question number 10

In 2022,what proportion of the world population lives in Africa ?

Choose an answer

1 1 inhabitant in 5

2 1 inhabitant in 11

3 1 inhabitant in 18

The right answer is no.1 :

In 2024, Africa is home to one in five people, or 19% of the world’s population. According to United Nations average projections, it will have 37 per cent of the population by 2100, or two out of five inhabitants

To improve your score, look in the "All about population" pages on our website.

Question number 1

What are the world’s three most populated countries, in order, in 2024?

Choose an answer

1 China, India, United States

2 India, China, United States

3 China, United States, India

The right answer is no.2 :

According to the UN,India is the world’s most populated country, with just over 1.450 billion inhabitants, just ahead of China with more than 1.419 billion. The United States are far behind, with slightly more than 345 million inhabitants.

Question number 2

How many cities in the world had more than 10 million inhabitants in 2024?

Choose an answer

1 25

2 35

3 45

The right answer is no.2 :

According to the United Nations, there were 35 urban agglomerations with more than 10 millions inhabitants in 2024. There were only 11 in 1990.

Question number 3

In the world population, in 2024, what is the ratio of males to females ?

Choose an answer

1 more males than females

2 the same number of males and females

3 more females than males

The right answer is no.1 :

Men slightly outnumber women (101 males for 100 females in the world in 2024). More boys than girls are born (105 boys per 100 girls). The proportion then decreases with age because boys or men die more than girls or women overall. So there are as many men as women at 50, and more women than men beyond.

Question number 4

How many people die in the world every second ?

Choose an answer

1 2

2 20

3 200

The right answer is no.1 :

Around two people on Earth die every second. Around 171 000 per day and 62 million per year (2024). This represents a little bit more than 8 annual deaths per 1,000 population.

Question number 5

What are the world’s three most populated cities, in order in 2024?

Choose an answer

1 Shanghai, Tokyo and Delhi

2 Tokyo, Delhi and Shanghai

3 Delhi, Mexico and Shanghai

The right answer is no.2 :

They are at first Tokyo, whose agglomeration has 37 million inhabitants in 2024 according to United Nations statistics, then Delhi and Shanghai, with respectively 34 and 30 millions.

Question number 6

In the world,in 2024 the population aged under 15 represents :

Choose an answer

1 almost one person in four

2 almost one person in five

3 almost one person in ten

The right answer is no.1 :

There are 2 billion under-15s in the world, which is almost 25% of the 8 billion total inhabitants (in 2024) by the United Nations.

Question number 7

In which of these countries is life expectancy shortest in 2024?

Choose an answer

1 Bangladesh

2 Ivory Coast

3 Senegal

The right answer is no.2 :

In 2024,according to the United Nations, life expectancy (men and women combined) is 62.1 years in Ivory Coast compared with 68.9 years in Senegal and 73,7 years in Bangladesh

Question number 8

What percentage of the world’s population lives outside the country where they were born?

Choose an answer

1 4%

2 10%

3 30%

The right answer is no.1 :

In 2020, the number of migrants in the world was about 281 million people, 51 million more than in 2010, 128 million more than in 1990 and more than three times as many as in 1970. As for the proportion of migrants in the world population, it will be 3.6% in 2020.

Question number 9

By how much does the world population increase each day ?

Choose an answer

1 2,000

2 200,000

3 20 million

The right answer is no.2 :

The world population grows by 200,000 every day.

Question number 10

How old was Jeanne Calment, the world’s longest-living woman, when she died ?

Choose an answer

1 102

2 112

3 122

The right answer is no.3 :

Jeanne Calment, a frenchwoman, died in 1997 at the age of 122.

To improve your score, look in the "All about population" pages on our website.