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Median age in Solomon Islands

The median age in Solomon Islands is 20.5 years (2024): half the population is older, half younger. That is 10.1 years younger than the world median of 30.6, and makes Solomon Islands the 150th oldest of 193 countries.

Key numbers

Median age
20.5 yrs
2024
vs world
-10.1 yrs
world 30.6
Oldest rank
150 of 193
1 = oldest
Youngest rank
44 of 193
1 = youngest
Life expectancy
70.5 yrs
at birth, 2023

Solomon Islands among its neighbours

Ranking neighbours (three on each side) plus every Oceania country in our data, youngest first
#CountryMedian agevs worldRegion
39Samoa19.8-10.8Oceania
41Vanuatu20.2-10.4Oceania
42Pakistan20.4-10.2Asia
43Comoros20.5-10.1Africa
44Solomon Islands20.5-10.1Oceania
45Iraq20.6-10.0Asia
46Tonga20.7-9.9Oceania
47Equatorial Guinea20.9-9.7Africa
55Papua New Guinea22.6-8.0Oceania
56Kiribati22.8-7.8Oceania
59Micronesia23.1-7.5Oceania
82Fiji27.9-2.7Oceania
104Guam31.3+0.7Oceania
122New Caledonia34.2+3.6Oceania
129French Polynesia35.4+4.8Oceania
140New Zealand37.5+6.9Oceania
141Australia38.0+7.4Oceania

In plain language

Line up everyone in Solomon Islands by age. The person in the middle is 20.5. That is the median: it says nothing about how old the oldest are or how many babies were born last year, only where the midpoint falls.

A median of 20.5 is younger than the world's 30.6. For scale, the youngest country here, Central African Republic, has a median of 14.4 and the oldest, Japan, 49.4. Life expectancy at birth in Solomon Islands is 70.5 years, so a person at the median age has, on a rough reckoning, about 50.0 years ahead of them.

The 2024figure is the UN's medium-variant number; its estimates end in 2023. For a year this close the projection barely differs from an estimate, since everyone counted has already been born.

Questions

What is the median age in Solomon Islands?
20.5 years in 2024, by the UN World Population Prospects 2024. Half of the people in Solomon Islands are younger than 20.5 and half are older. The median is not the average age; it is the midpoint, so a handful of very old people do not move it.
Is Solomon Islands's population young or old?
Young. Solomon Islands is 10.1 years below the world median of 30.6, and ranks 150th oldest of the 193 countries here. The youngest country, Central African Republic, has a median of 14.4; the oldest, Japan, 49.4.
How does Solomon Islands compare to Comoros?
Comoros has a median age of 20.5, 0.0 years older than Solomon Islands. The two sit next to each other in the ranking, at 44th and 43rd youngest.

Source: United Nations, World Population Prospects 2024, median age in 2024 (medium variant), via Our World in Data (fetched 2026-10-26).

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