The population of Belize is expected to grow by 7,000 in 2025 and reach 444,000 in 2026. Migration (including immigration and emigration) increases population by 1,109 people yearly. On average there are 8,679 births and 2,340 deaths in Belize per year. Rate of natural increase is approximately 1.45 percent per year. The population density of Belize has changed from 6.3 in 1980 to 18.5 in 2023.
| Current population | 440,033 people at present (Thursday 3rd of July 2025) | |
| Median Age | 29.0 years |
| Life expectancy | 72.1 years | |
| Population density | 19.1 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 436,000 | 7,000 (1.6%) | 1,109 | 29.0 | 2.25 | 19 | 191,000 (43.8%) |
| 2024 | 429,000 | 8,000 (1.9%) | 1,232 | 28.7 | 19 | 187,000 (43.7%) | |
| 2023 | 421,000 | 7,000 (1.7%) | 1,232 | 28.5 | 19 | 184,000 (43.6%) | |
| 2022 | 414,000 | 8,000 (1.9%) | 1,232 | 28.2 | 18 | 180,000 (43.6%) | |
| 2021 | 406,000 | 8,000 (2.0%) | 1,232 | 28.0 | 18 | 177,000 (43.6%) | |
| 2020 | 398,000 | 8,000 (2.0%) | 1,232 | 27.7 | 2.38 | 17 | 173,000 (43.6%) |
| 2019 | 0 | 0 (0.0%) | 1,366 | 27.6 | 2.41 | 17 | 170,000 (43.6%) |
| 2018 | 0 | 0 (0.0%) | 1,366 | 27.3 | 2.45 | 17 | 167,000 (43.7%) |
| 2017 | 0 | 0 (0.0%) | 1,366 | 27.1 | 2.48 | 16 | 164,000 (43.7%) |
| 2016 | 0 | 0 (0.0%) | 1,366 | 26.9 | 2.51 | 16 | 160,891 (43.8%) |
| 2015 | 359,288 | 7,594 (2.1%) | 1,366 | 26.7 | 2.54 | 16 | 157,990 (44.0%) |
| 2010 | 321,608 | 7,679 (2.4%) | 1,519 | 25.6 | 2.72 | 14 | 144,605 (45.0%) |
| 2005 | 283,277 | 7,188 (2.5%) | 1,744 | 23.7 | 3.07 | 12 | 131,188 (46.3%) |
| 2000 | 247,315 | 8,289 (3.4%) | 1,159 | 23.3 | 3.60 | 11 | 117,878 (47.7%) |
| 1995 | 206,963 | 5,289 (2.6%) | 2,382 | 23.3 | 4.11 | 9 | 98,274 (47.5%) |
| 1990 | 187,552 | 4,083 (2.2%) | -1,802 | 22.5 | 4.51 | 8 | 89,022 (47.5%) |
| 1985 | 164,921 | 4,574 (2.8%) | -1,081 | 22.1 | 5.02 | 7 | 79,853 (48.4%) |
| 1980 | 144,155 | 2,850 (2.0%) | -1,066 | 22.1 | 5.85 | 6 | 71,175 (49.4%) |
| 1975 | 133,260 | 1,953 (1.5%) | -2,708 | 22.0 | 6.28 | 6 | 66,858 (50.2%) |
| 1970 | 122,182 | 2,921 (2.4%) | -2,133 | 22.5 | 6.30 | 5 | 62,268 (51.0%) |
| 1965 | 106,119 | 3,050 (2.9%) | -591 | 22.9 | 6.40 | 5 | 55,692 (52.5%) |
| 1960 | 92,064 | 2,639 (2.8%) | -484 | 23.4 | 6.50 | 4 | 49,740 (54.0%) |
In 2024 the population of Belize was 429,000 and the average age increased from 23.4 in 1960 to 28.7. Urban population has increased from 117,878 (47.7%) in 2000 to 191,000 (43.8%) in the current year. The population density of Belize has changed from 6.3 in 1980 to 18.5 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | 1,232 | 27.7 | 2.38 | 17 | 173,000 (43.6%) |
| 2025 | 436,000 | 7,000 (1.6%) | 1,109 | 29.0 | 2.25 | 19 | 191,000 (43.8%) |
| 2030 | 473,000 | 7,000 (1.5%) | 1,109 | 30.3 | 2.14 | 21 | 210,000 (44.5%) |
| 2035 | 507,000 | 7,000 (1.4%) | 1,109 | 31.7 | 2.05 | 22 | 232,000 (45.9%) |
| 2040 | 538,000 | 6,000 (1.1%) | 1,109 | 32.9 | 1.97 | 24 | 256,000 (47.6%) |
| 2045 | 566,000 | 5,000 (0.9%) | 1,109 | 34.3 | 1.91 | 25 | 279,000 (49.3%) |
| 2050 | 592,000 | 5,000 (0.8%) | 1,109 | 35.6 | 1.86 | 26 | 302,000 (51.0%) |
The life expectancy at birth should reach 75.8 (72.8 years for male and 78.9 years for females). Population density will go up to 26.0 people per square kilometer.
The demographics of Belize constitutes of 220,000 women and 216,000 men, which means there are 982 men per 1000 women. As far as age distribution goes, 37.6% of population (164,110) is 19 or younger, 57.6% of population (250,918) is between age 20 and 64 and 4.7% of population (20,318) is over 65.