The population of Solomon Islands is expected to grow by 13,000 in 2025 and reach 721,000 in 2026. Migration (including immigration and emigration) decreases population by 2,400 people yearly. On average there are 18,024 births and 3,116 deaths in Solomon Islands per year. Rate of natural increase is approximately 2.10 percent per year. The population density of Solomon Islands has changed from 8.2 in 1980 to 24.4 in 2023.
| Current population | 712,847 people at present (Sunday 27th of April 2025) | |
| Median Age | 26.0 years |
| Life expectancy | 73.0 years | |
| Population density | 25.3 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 709,000 | 13,000 (1.8%) | -2,400 | 26.0 | 3.41 | 25 | 189,000 (26.6%) |
| 2024 | 696,000 | 12,000 (1.7%) | -2,400 | 25.7 | 25 | 183,000 (26.2%) | |
| 2023 | 684,000 | 12,000 (1.8%) | -2,400 | 25.5 | 24 | 177,000 (25.8%) | |
| 2022 | 672,000 | 13,000 (1.9%) | -2,400 | 25.5 | 24 | 171,000 (25.4%) | |
| 2021 | 659,000 | 12,000 (1.8%) | -2,400 | 25.2 | 24 | 165,000 (25.0%) | |
| 2020 | 647,000 | 12,000 (1.9%) | -2,400 | 24.9 | 3.64 | 23 | 159,000 (24.5%) |
| 2019 | 0 | 0 (0.0%) | -2,400 | 24.9 | 3.69 | 23 | 153,000 (24.1%) |
| 2018 | 0 | 0 (0.0%) | -2,400 | 24.6 | 3.75 | 22 | 148,000 (23.7%) |
| 2017 | 0 | 0 (0.0%) | -2,400 | 24.5 | 3.80 | 22 | 142,000 (23.2%) |
| 2016 | 0 | 0 (0.0%) | -2,400 | 24.3 | 3.85 | 21 | 136,542 (22.8%) |
| 2015 | 587,482 | 11,978 (2.0%) | -2,400 | 24.2 | 3.91 | 21 | 131,179 (22.3%) |
| 2010 | 527,790 | 11,711 (2.2%) | -2,374 | 23.6 | 4.24 | 19 | 105,811 (20.0%) |
| 2005 | 469,885 | 11,561 (2.5%) | -2,379 | 23.1 | 4.50 | 17 | 83,790 (17.8%) |
| 2000 | 412,609 | 11,071 (2.7%) | -980 | 22.6 | 4.72 | 15 | 65,246 (15.8%) |
| 1995 | 359,225 | 10,000 (2.8%) | -135 | 22.1 | 5.20 | 13 | 52,677 (14.7%) |
| 1990 | 311,840 | 8,587 (2.8%) | -194 | 21.7 | 5.85 | 11 | 42,650 (13.7%) |
| 1985 | 270,801 | 8,092 (3.0%) | -366 | 21.5 | 6.28 | 10 | 33,669 (12.4%) |
| 1980 | 230,607 | 7,710 (3.3%) | 21.5 | 6.75 | 8 | 24,389 (10.6%) | |
| 1975 | 193,445 | 7,113 (3.7%) | 36 | 21.6 | 7.24 | 7 | 17,652 (9.1%) |
| 1970 | 160,290 | 5,415 (3.4%) | 424 | 22.8 | 6.91 | 6 | 14,293 (8.9%) |
| 1965 | 136,847 | 4,065 (3.0%) | 438 | 22.8 | 6.42 | 5 | 9,915 (7.2%) |
| 1960 | 117,866 | 3,530 (2.9%) | 470 | 22.9 | 6.39 | 4 | 6,799 (5.8%) |
In 2024 the population of Solomon Islands was 696,000 and the average age increased from 22.9 in 1960 to 25.7. Urban population has increased from 65,246 (15.8%) in 2000 to 189,000 (26.6%) in the current year. The population density of Solomon Islands has changed from 8.2 in 1980 to 24.4 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -2,400 | 24.9 | 3.64 | 23 | 159,000 (24.5%) |
| 2025 | 709,000 | 13,000 (1.8%) | -2,400 | 26.0 | 3.41 | 25 | 189,000 (26.6%) |
| 2030 | 773,000 | 13,000 (1.7%) | -2,400 | 26.9 | 3.21 | 28 | 221,000 (28.6%) |
| 2035 | 839,000 | 14,000 (1.7%) | -2,400 | 27.9 | 3.04 | 30 | 254,000 (30.3%) |
| 2040 | 905,000 | 13,000 (1.4%) | -2,400 | 29.0 | 2.89 | 32 | 289,000 (31.9%) |
| 2045 | 970,000 | 13,000 (1.3%) | -2,400 | 30.0 | 2.75 | 35 | 325,000 (33.5%) |
| 2050 | 1,033,000 | 13,000 (1.3%) | -2,400 | 31.0 | 2.63 | 37 | 363,000 (35.2%) |
The life expectancy at birth should reach 77.7 (75.8 years for male and 79.6 years for females). Population density will go up to 36.9 people per square kilometer.
The demographics of Solomon Islands constitutes of 349,000 women and 360,000 men, which means there are 1,032 men per 1000 women. As far as age distribution goes, 46.1% of population (326,920) is 19 or younger, 50.0% of population (354,358) is between age 20 and 64 and 4.0% of population (28,431) is over 65.