The population of Solomon Islands is expected to grow by 12,000 in 2021 and reach 672,000 in 2022. Migration (including immigration and emigration) decreases population by 2,400 people yearly. The population density of Solomon Islands has changed from 8.2 in 1980 to 22.7 in 2019.
| Current population | 668,331 people at present (Sunday 19th of September 2021) | |
| Median Age | 25.2 years |
| Population density | 23.6 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 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 2020 the population of Solomon Islands was 647,000 and the average age increased from 22.9 in 1960 to 24.9. Urban population has increased from 65,246 (15.8%) in 2000 to 165,000 (25.0%) in the current year. The population density of Solomon Islands has changed from 8.2 in 1980 to 22.7 in 2019.
| 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 population growth rate is 1.85% (12,000 residents, including 2,921 deaths). The demographics of Solomon Islands constitutes of 324,000 women and 335,000 men, which means there are 1,034 men per 1000 women. As far as age distribution goes, 48.1% of population (316,979) is 19 or younger, 48.4% of population (318,890) is between age 20 and 64 and 3.7% of population (24,185) is over 65.