The population of Cambodia is expected to grow by 210,000 in 2025 and reach 18,014,000 in 2026. Migration (including immigration and emigration) decreases population by 30,000 people yearly. On average there are 342,823 births and 105,127 deaths in Cambodia per year. Rate of natural increase is approximately 1.34 percent per year. The population density of Cambodia has changed from 37.9 in 1980 to 98.5 in 2023.
| Current population | 17,874,712 people at present (Sunday 27th of April 2025) | |
| Median Age | 29.4 years |
| Life expectancy | 71.6 years | |
| Population density | 100.9 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 17,809,000 | 210,000 (1.2%) | -30,000 | 29.4 | 2.32 | 101 | 4,200,000 (23.6%) |
| 2024 | 17,599,000 | 214,000 (1.2%) | -30,000 | 29.1 | 100 | 4,089,000 (23.2%) | |
| 2023 | 17,385,000 | 218,000 (1.3%) | -30,000 | 28.9 | 99 | 3,980,000 (22.9%) | |
| 2022 | 17,167,000 | 223,000 (1.3%) | -30,000 | 28.6 | 97 | 3,875,000 (22.6%) | |
| 2021 | 16,944,000 | 228,000 (1.4%) | -30,000 | 28.4 | 96 | 3,772,000 (22.3%) | |
| 2020 | 16,716,000 | 233,000 (1.4%) | -30,000 | 28.1 | 2.45 | 95 | 3,673,000 (22.0%) |
| 2019 | 0 | 0 (0.0%) | -30,000 | 27.9 | 2.48 | 93 | 3,576,000 (21.7%) |
| 2018 | 0 | 0 (0.0%) | -30,000 | 27.7 | 2.51 | 92 | 3,481,000 (21.4%) |
| 2017 | 0 | 0 (0.0%) | -30,000 | 27.5 | 2.54 | 91 | 3,390,000 (21.2%) |
| 2016 | 0 | 0 (0.0%) | -30,000 | 27.3 | 2.56 | 89 | 3,301,428 (20.9%) |
| 2015 | 15,517,635 | 246,845 (1.6%) | -30,000 | 27.0 | 2.59 | 88 | 3,215,720 (20.7%) |
| 2010 | 14,308,740 | 218,532 (1.5%) | -30,000 | 26.0 | 2.88 | 81 | 2,834,561 (19.8%) |
| 2005 | 13,270,201 | 206,824 (1.6%) | -59,197 | 24.6 | 3.23 | 75 | 2,544,428 (19.2%) |
| 2000 | 12,152,354 | 268,718 (2.2%) | -7,031 | 23.3 | 3.81 | 69 | 2,258,637 (18.6%) |
| 1995 | 10,653,558 | 338,182 (3.2%) | 69,699 | 22.4 | 4.69 | 60 | 1,844,237 (17.3%) |
| 1990 | 8,973,342 | 284,190 (3.2%) | 81,883 | 22.1 | 5.60 | 51 | 1,394,996 (15.5%) |
| 1985 | 7,712,978 | 266,959 (3.5%) | -15,604 | 22.7 | 6.31 | 44 | 1,074,495 (13.9%) |
| 1980 | 6,692,107 | -76,617 (-1.1%) | -17,771 | 23.4 | 5.87 | 38 | 662,385 (9.9%) |
| 1975 | 7,522,593 | -8,831 (-0.1%) | -17,000 | 22.1 | 5.68 | 43 | 336,786 (4.5%) |
| 1970 | 6,994,848 | 115,664 (1.7%) | -25,000 | 21.9 | 6.47 | 40 | 1,117,077 (16.0%) |
| 1965 | 6,467,197 | 135,614 (2.1%) | -50,000 | 21.8 | 6.87 | 37 | 700,397 (10.8%) |
| 1960 | 5,722,370 | 150,645 (2.6%) | 21.9 | 6.97 | 32 | 588,546 (10.3%) |
In 2024 the population of Cambodia was 17,599,000 and the average age increased from 21.9 in 1960 to 29.1. Urban population has increased from 2,258,637 (18.6%) in 2000 to 4,200,000 (23.6%) in the current year. The population density of Cambodia has changed from 37.9 in 1980 to 98.5 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -30,000 | 28.1 | 2.45 | 95 | 3,673,000 (22.0%) |
| 2025 | 17,809,000 | 210,000 (1.2%) | -30,000 | 29.4 | 2.32 | 101 | 4,200,000 (23.6%) |
| 2030 | 18,798,000 | 192,000 (1.0%) | -30,000 | 30.7 | 2.22 | 107 | 4,812,000 (25.6%) |
| 2035 | 19,724,000 | 181,000 (0.9%) | -30,000 | 32.0 | 2.13 | 112 | 5,522,000 (28.0%) |
| 2040 | 20,592,000 | 167,000 (0.8%) | -30,000 | 33.3 | 2.05 | 117 | 6,302,000 (30.6%) |
| 2045 | 21,370,000 | 146,000 (0.7%) | -30,000 | 34.6 | 1.99 | 121 | 7,124,000 (33.3%) |
| 2050 | 22,019,000 | 119,000 (0.5%) | -30,000 | 35.9 | 1.93 | 125 | 7,968,000 (36.2%) |
The life expectancy at birth should reach 77.0 (74.6 years for male and 79.5 years for females). Population density will go up to 124.7 people per square kilometer.
The demographics of Cambodia constitutes of 9,107,000 women and 8,702,000 men, which means there are 956 men per 1000 women. As far as age distribution goes, 38.4% of population (6,836,875) is 19 or younger, 56.1% of population (9,981,945) is between age 20 and 64 and 5.6% of population (990,180) is over 65.