The population of Japan is expected to decrease by 544,000 in 2026 and reach 121,977,000 in 2027. Migration (including immigration and emigration) increases population by 50,000 people yearly. The population density of Japan has changed from 318.8 in 1980 to 342.3 in 2024.
| Current population | 122,481,197 people at present (Tuesday 10th of February 2026) | |
| Median Age | 48.2 years |
| Population density | 339.6 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2026 | 122,545,000 | -544,000 (-0.4%) | 50,000 | 48.2 | 340 | 118,215,000 (96.5%) | |
| 2025 | 123,089,000 | -520,000 (-0.4%) | 50,000 | 48.0 | 1.56 | 341 | 118,554,000 (96.3%) |
| 2024 | 0 | 0 (0.0%) | 50,000 | 47.8 | 342 | 118,846,000 (96.1%) | |
| 2023 | 0 | 0 (0.0%) | 50,000 | 47.6 | 344 | 119,092,000 (96.0%) | |
| 2022 | 0 | 0 (0.0%) | 50,000 | 47.4 | 345 | 119,289,000 (95.8%) | |
| 2021 | 0 | 0 (0.0%) | 50,000 | 47.2 | 346 | 119,438,000 (95.5%) | |
| 2020 | 125,473,000 | -411,000 (-0.3%) | 50,000 | 47.0 | 1.51 | 347 | 119,532,000 (95.3%) |
| 2019 | 0 | 0 (0.0%) | 50,000 | 46.8 | 1.50 | 348 | 119,566,000 (95.0%) |
| 2018 | 0 | 0 (0.0%) | 50,000 | 46.6 | 1.49 | 349 | 119,536,000 (94.7%) |
| 2017 | 0 | 0 (0.0%) | 50,000 | 46.3 | 1.48 | 350 | 119,442,000 (94.3%) |
| 2016 | 0 | 0 (0.0%) | 50,000 | 46.1 | 1.47 | 348 | 119,283,404 (93.9%) |
| 2015 | 127,141,000 | -135,000 (-0.1%) | 50,000 | 45.9 | 1.46 | 349 | 118,874,292 (93.5%) |
| 2010 | 128,070,000 | 23,000 (0.0%) | 71,627 | 44.5 | 1.39 | 351 | 115,931,525 (90.5%) |
| 2005 | 127,773,000 | 12,000 (0.0%) | 55,516 | 42.9 | 1.26 | 351 | 109,856,670 (86.0%) |
| 2000 | 126,843,000 | 212,000 (0.2%) | 32,840 | 41.1 | 1.36 | 348 | 99,760,751 (78.6%) |
| 1995 | 125,439,000 | 478,000 (0.4%) | -20,067 | 39.3 | 1.42 | 344 | 97,862,490 (78.0%) |
| 1990 | 123,537,000 | 421,000 (0.3%) | 9,257 | 37.4 | 1.54 | 339 | 95,542,280 (77.3%) |
| 1985 | 120,754,000 | 736,000 (0.6%) | -59,668 | 35.5 | 1.76 | 331 | 92,632,808 (76.7%) |
| 1980 | 116,782,000 | 912,000 (0.8%) | 10,000 | 33.8 | 1.75 | 319 | 88,958,689 (76.2%) |
| 1975 | 111,940,000 | 1,778,000 (1.6%) | 41,001 | 32.3 | 1.91 | 305 | 84,756,490 (75.7%) |
| 1970 | 104,345,000 | 1,173,000 (1.1%) | 145,519 | 31.3 | 2.14 | 285 | 75,000,056 (71.9%) |
| 1965 | 98,883,000 | 1,057,000 (1.1%) | 163,844 | 30.1 | 2.14 | 270 | 67,107,937 (67.9%) |
| 1960 | 92,500,572 | 2,442,428 (2.6%) | -30,270 | 28.8 | 2.00 | 257 | 58,526,962 (63.3%) |
In 2025 the population of Japan was 123,089,000 and the average age increased from 28.8 in 1960 to 48.0. Urban population has increased from 99,760,751 (78.6%) in 2000 to 118,215,000 (96.5%) in the current year. The population density of Japan has changed from 318.8 in 1980 to 342.3 in 2024.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | 50,000 | 47.0 | 1.51 | 347 | 119,532,000 (95.3%) |
| 2025 | 0 | 0 (0.0%) | 50,000 | 48.0 | 1.56 | 341 | 118,554,000 (96.3%) |
| 2030 | 120,144,000 | -631,000 (-0.5%) | 50,000 | 48.9 | 1.60 | 334 | 116,452,000 (96.9%) |
| 2035 | 116,895,000 | -646,000 (-0.6%) | 50,000 | 49.4 | 1.64 | 325 | 113,677,000 (97.2%) |
| 2040 | 113,815,000 | -595,000 (-0.5%) | 50,000 | 49.8 | 1.66 | 316 | 110,848,000 (97.4%) |
| 2045 | 110,926,000 | -576,000 (-0.5%) | 50,000 | 50.0 | 1.69 | 307 | 108,181,000 (97.5%) |
| 2050 | 107,957,000 | -621,000 (-0.6%) | 50,000 | 50.3 | 1.71 | 298 | 105,420,000 (97.7%) |
The life expectancy at birth should reach 88.2 (85.0 years for male and 91.5 years for females). Population density will go up to 298.4 people per square kilometer.
The demographics of Japan constitutes of 62,840,000 women and 59,705,000 men, which means there are 950 men per 1000 women. As far as age distribution goes, 16.9% of population (20,697,851) is 19 or younger, 53.7% of population (65,794,411) is between age 20 and 64 and 29.4% of population (36,064,994) is over 65.