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In 2026, the Solomon Islands' population is projected at 858,288. That is an 8-fold increase on the 108,634 recorded in 1950. It is growing at +2.30% a year, one of the faster rates globally, adding about 19.7K people a year. Population density sits at 30 people/km². Half the population is younger than 20.9 years, and the age structure is steadily tilting older: the median is projected to reach 26.4 by 2050. The sexes are close to evenly balanced, at 105 males per 100 females. By 2100, UN projections see it rising to 1,849,209, up 115% from 2026.
Total population
858,288
Density
30 people/km²
Median age
20.9 years
Growth rate
+2.30%
The Solomon Islands is experiencing rapid population growth, adding tens of thousands of people each year. The population is aging rapidly; median age will rise from 21 in 2026 to 26 by 2050. Looking ahead, UN projections show the population reaching 1.8M by 2100, more than double 2026's level.