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Population in Cambodia compared to Japan: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Cambodia was 17,847,982 in 2025 vs 123,366,734 people in Japan in 2025. In 2026, based on the adjusted UN estimation, the current Cambodia's population is 18,159,213 people compared to 122,704,252 in Japan.

Population statistics:

  • Japan's population is 6.76 times bigger than Cambodia's.
  • Cambodia is ranked the 73rd most populous country in the world, while Japan is the 12th.
  • The countries together account for 1.7% of the world: 0.22% for Cambodia vs 1.48% for Japan.
  • For the last 10 years, Cambodia has had an average growth rate of +1.35% per year vs -0.28% in Japan.
  • Since 2006, the population of Cambodia has increased from 13.6M people to 18.2M (33.1% growth), while Japan has declined from 128M to 123M (4.03% decline).

Cambodia vs Japan: population by year and forecast

Cambodia
Factual

Projection
Japan
Factual

Projection
1x
Year Population
Cambodia Japan
2100 22,901,914 76,995,942
2099 22,958,383 77,380,486
2098 23,015,331 77,759,557
2097 23,068,989 78,135,569
2096 23,118,854 78,515,892
2095 23,162,704 78,892,606
2094 23,207,466 79,267,768
2093 23,247,521 79,645,584
2092 23,285,540 80,025,578
2091 23,317,510 80,401,222
2090 23,349,581 80,778,500
2089 23,381,110 81,158,413
2088 23,404,619 81,539,639
2087 23,429,179 81,926,401
2086 23,450,970 82,322,612
2085 23,469,059 82,727,738
2084 23,486,236 83,141,354
2083 23,498,658 83,562,394
2082 23,506,751 83,998,809
2081 23,512,878 84,447,888
2080 23,518,840 84,918,455
2079 23,523,165 85,406,042
2078 23,523,989 85,916,840
2077 23,519,769 86,453,316
2076 23,512,440 87,012,155
2075 23,506,393 87,597,053
2074 23,494,004 88,209,803
2073 23,481,588 88,854,316
2072 23,463,712 89,519,055
2071 23,443,140 90,204,314
2070 23,420,769 90,919,143
2069 23,393,461 91,645,589
2068 23,362,386 92,388,299
2067 23,324,169 93,133,993
2066 23,283,399 93,889,902
2065 23,242,009 94,654,259
2064 23,191,929 95,412,429
2063 23,139,318 96,169,244
2062 23,083,489 96,924,236
2061 23,020,659 97,675,525
2060 22,951,813 98,422,553
2059 22,877,844 99,166,038
2058 22,799,179 99,890,950
2057 22,715,484 100,607,740
2056 22,628,607 101,318,164
2055 22,537,541 102,012,184
2054 22,440,088 102,706,063
2053 22,338,320 103,381,833
2052 22,231,339 104,059,800
2051 22,117,409 104,729,745
2050 22,001,254 105,400,477
2049 21,877,484 106,076,354
2048 21,749,790 106,754,699
2047 21,618,052 107,442,881
2046 21,480,480 108,139,155
2045 21,340,224 108,844,934
2044 21,195,511 109,553,441
2043 21,046,437 110,269,851
2042 20,893,438 110,992,599
2041 20,738,659 111,729,216
2040 20,582,241 112,463,507
2039 20,421,184 113,200,859
2038 20,256,225 113,940,856
2037 20,088,660 114,687,611
2036 19,922,341 115,436,359
2035 19,747,906 116,187,949
2034 19,573,792 116,936,734
2033 19,395,265 117,678,572
2032 19,215,259 118,419,247
2031 19,030,553 119,153,646
2030 18,843,778 119,882,512
2029 18,652,372 120,600,781
2028 18,456,287 121,314,239
2027 18,256,828 122,015,984
2026 18,056,115 122,704,252
2025 17,847,982 123,366,734
2024 17,638,801 123,975,371
2023 17,423,880 124,516,650
2022 17,201,724 125,124,989
2021 16,974,305 125,681,593
2020 16,725,474 126,261,000
2019 16,481,304 126,633,000
2018 16,274,522 126,811,000
2017 16,073,372 126,972,000
2016 15,852,803 127,076,000
2015 15,623,251 127,141,000
2014 15,396,772 127,276,000
2013 15,170,208 127,445,000
2012 14,945,085 127,629,000
2011 14,722,584 127,833,000
2010 14,500,726 128,070,000
2009 14,276,810 128,047,000
2008 14,053,479 128,063,000
2007 13,841,770 128,001,000
2006 13,639,028 127,854,000
2005 13,439,202 127,773,000
2004 13,244,731 127,761,000
2003 13,050,968 127,718,000
2002 12,855,241 127,445,000
2001 12,658,484 127,149,000
2000 12,462,336 126,843,000
1999 12,265,731 126,631,000
1998 12,058,173 126,400,000
1997 11,570,982 126,057,000
1996 10,801,270 125,757,000
1995 10,018,497 125,472,000
1994 9,239,162 125,178,000
1993 8,616,381 124,829,000
1992 8,113,083 124,425,000
1991 7,686,850 123,964,000
1990 7,374,752 123,478,000
1989 7,073,473 123,069,000
1988 6,812,014 122,578,000
1987 6,557,970 122,069,000
1986 6,285,693 121,482,000
1985 6,043,783 120,837,000
1984 5,845,117 120,083,000
1983 5,636,203 119,307,000
1982 5,436,432 118,480,000
1981 5,284,495 117,661,000
1980 5,199,872 116,807,000
1979 5,088,808 115,890,000
1978 5,211,653 114,913,000
1977 5,668,551 113,872,000
1976 6,134,991 112,775,000
1975 6,581,371 111,573,000
1974 6,783,240 110,162,000
1973 6,739,726 108,707,000
1972 6,673,886 107,188,000
1971 6,620,880 105,697,000
1970 6,639,182 103,403,000
1969 6,604,725 102,219,000
1968 6,467,324 101,011,000
1967 6,332,944 99,879,000
1966 6,201,232 98,851,000
1965 6,072,289 97,952,000
1964 5,946,178 96,903,000
1963 5,823,010 95,900,000
1962 5,697,558 94,933,000
1961 5,571,168 94,055,000
1960 5,449,966 93,216,000

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/cambodia/japan | CC BY

From 2006 to 2016, the population of Cambodia increased by 2,213,775 people (a 16.2% growth), while Japan lost 778,000 people (a 0.61% decline).

For the next 10 years, from 2016 to 2026, Cambodia gained 2,306,410 people (a 14.5% growth), while Japan's population decreased by 4,371,748 people (a 3.44% decline).

Cambodia was ranked 67th most populous country in 2006 and is 73rd in 2026. Japan was ranked 10th in 2006 and ranked 12th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Cambodia's population will grow by 21.2% to 22,001,254 people and will still be ranked 73rd. The population of Japan will decrease by 14.1% to 105,400,477 people and rank change from 12th to 17th.

Cambodia is projected to reach its peak in 2078 at 23.5M people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.

Population growth rate by year

Cambodia
Factual

Projection
Japan
Factual

Projection
1x
Year Growth rate
Cambodia Japan
2100 -0.25% -0.5%
2099 -0.25% -0.49%
2098 -0.23% -0.48%
2097 -0.22% -0.48%
2096 -0.19% -0.48%
2095 -0.19% -0.47%
2094 -0.17% -0.47%
2093 -0.16% -0.47%
2092 -0.14% -0.47%
2091 -0.14% -0.47%
2090 -0.13% -0.47%
2089 -0.1% -0.47%
2088 -0.1% -0.47%
2087 -0.09% -0.48%
2086 -0.08% -0.49%
2085 -0.07% -0.5%
2084 -0.05% -0.5%
2083 -0.03% -0.52%
2082 -0.03% -0.53%
2081 -0.03% -0.55%
2080 -0.02% -0.57%
2079 -0.004% -0.59%
2078 0.02% -0.62%
2077 0.03% -0.64%
2076 0.03% -0.67%
2075 0.05% -0.69%
2074 0.05% -0.73%
2073 0.08% -0.74%
2072 0.09% -0.76%
2071 0.1% -0.79%
2070 0.12% -0.79%
2069 0.13% -0.8%
2068 0.16% -0.8%
2067 0.18% -0.81%
2066 0.18% -0.81%
2065 0.22% -0.79%
2064 0.23% -0.79%
2063 0.24% -0.78%
2062 0.27% -0.77%
2061 0.3% -0.76%
2060 0.32% -0.75%
2059 0.35% -0.73%
2058 0.37% -0.71%
2057 0.38% -0.7%
2056 0.4% -0.68%
2055 0.43% -0.68%
2054 0.46% -0.65%
2053 0.48% -0.65%
2052 0.52% -0.64%
2051 0.53% -0.64%
2050 0.57% -0.64%
2049 0.59% -0.64%
2048 0.61% -0.64%
2047 0.64% -0.64%
2046 0.66% -0.65%
2045 0.68% -0.65%
2044 0.71% -0.65%
2043 0.73% -0.65%
2042 0.75% -0.66%
2041 0.76% -0.65%
2040 0.79% -0.65%
2039 0.81% -0.65%
2038 0.83% -0.65%
2037 0.83% -0.65%
2036 0.88% -0.65%
2035 0.89% -0.64%
2034 0.92% -0.63%
2033 0.94% -0.63%
2032 0.97% -0.62%
2031 0.99% -0.61%
2030 1.03% -0.6%
2029 1.06% -0.59%
2028 1.09% -0.58%
2027 1.11% -0.56%
2026 1.17% -0.54%
2025 1.19% -0.49%
2024 1.23% -0.43%
2023 1.29% -0.49%
2022 1.34% -0.44%
2021 1.49% -0.46%
2020 1.48% -0.29%
2019 1.27% -0.14%
2018 1.25% -0.13%
2017 1.39% -0.08%
2016 1.47% -0.05%
2015 1.47% -0.11%
2014 1.49% -0.13%
2013 1.51% -0.14%
2012 1.51% -0.16%
2011 1.53% -0.19%
2010 1.57% 0.02%
2009 1.59% -0.01%
2008 1.53% 0.05%
2007 1.49% 0.11%
2006 1.49% 0.06%
2005 1.47% 0.009%
2004 1.48% 0.03%
2003 1.52% 0.21%
2002 1.55% 0.23%
2001 1.57% 0.24%
2000 1.6% 0.17%
1999 1.72% 0.18%
1998 4.21% 0.27%
1997 7.13% 0.24%
1996 7.81% 0.23%
1995 8.44% 0.23%
1994 7.23% 0.28%
1993 6.2% 0.32%
1992 5.54% 0.37%
1991 4.23% 0.39%
1990 4.26% 0.33%
1989 3.84% 0.4%
1988 3.87% 0.42%
1987 4.33% 0.48%
1986 4% 0.53%
1985 3.4% 0.63%
1984 3.71% 0.65%
1983 3.67% 0.7%
1982 2.88% 0.7%
1981 1.63% 0.73%
1980 2.18% 0.79%
1979 -2.36% 0.85%
1978 -8.06% 0.91%
1977 -7.6% 0.97%
1976 -6.78% 1.08%
1975 -2.98% 1.28%
1974 0.65% 1.34%
1973 0.99% 1.42%
1972 0.8% 1.41%
1971 -0.28% 2.22%
1970 0.52% 1.16%
1969 2.12% 1.2%
1968 2.12% 1.13%
1967 2.12% 1.04%
1966 2.12% 0.92%
1965 2.12% 1.08%
1964 2.12% 1.05%
1963 2.2% 1.02%
1962 2.27% 0.93%
1961 2.22% 0.9%

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

GeoRank.org/population/cambodia/japan | CC BY

In 2025, the population of Cambodia grew by 1.19%, while Japan's population declined by 0.49%.

Live population counters

Cambodia Japan
Current population
18159213
122704252
Population rank 73/197 12/197
Percent of world population 0.22% 1.48%
One net population change
2.52 minutes
52 seconds
One birth every
1.47 minutes
44.6 seconds
One death every
4.62 minutes
19.1 seconds
Daily growth/decline +573 -1,667
Annual growth/decline +209,181 -608,637
Annual growth/decline rate +1.19% -0.49%
Population growth rate rank 88/197 183/197
One migration net change every
16.7 minutes
3.75 minutes
Annual migration change -31,469 +140,579
Net migration rank 167/196 10/196
Foreign-born residents 83,925 3,409,529
Foreign-born residents rank 136/195 19/195
Foreign-born share of population 0.5% 2.8%
Foreign-born share rank 175/195 120/195

Natural population change vs migration

Cambodia
Natural

Migration
Japan
Natural

Migration
1x
Year Population change
Cambodia Japan
Natural Migration Natural Migration
2025 - -31,469 - 140,579
2024 244,386 -32,960 -942,213 153,357
2023 250,242 -31,837 -871,617 175,003
2022 257,269 -31,350 -825,825 175,003
2021 255,939 -27,025 -640,976 -34,996
2020 268,745 0 -542,923 42,001
2019 276,870 -57,268 -531,858 318,190
2018 280,671 -86,702 -456,520 320,601
2017 282,698 -74,362 -406,310 322,564
2016 284,130 -51,324 -343,106 314,732
2015 284,390 -58,101 -292,424 168,896
2014 283,193 -56,536 -267,279 58,109
2013 281,013 -54,554 -242,146 66,449
2012 276,649 -52,874 -229,733 67,904
2011 272,161 -50,941 -204,533 97,720
2010 272,266 -49,781 -128,070 131,860
2009 274,700 -49,354 -76,828 125,450
2008 272,132 -50,809 -51,225 142,605
2007 270,745 -68,653 -25,600 138,024
2006 263,697 -60,315 12,785 130,065
2005 256,756 -60,473 -25,554 113,017
2004 251,650 -58,972 76,656 69,014
2003 251,884 -57,026 114,946 74,875
2002 251,860 -55,245 178,423 60,864
2001 250,726 -53,815 203,438 59,563
2000 246,330 -50,957 228,317 23,468
1999 245,425 -47,608 202,610 56,901
1998 251,076 -33,781 265,440 45,912
1997 252,351 504,742 277,325 43,366
1996 274,147 508,187 314,392 25,030
1995 280,168 503,042 276,039 87,714
1994 286,728 488,732 363,017 154,214
1993 282,221 187,883 312,073 168,836
1992 260,673 275,823 360,833 170,878
1991 257,709 58,264 396,685 161,331
1990 249,776 58,455 407,478 124,582
1989 239,211 55,125 467,662 31,202
1988 243,203 -14,627 527,085 51,154
1987 235,064 44,442 598,138 28,001
1986 221,684 43,356 631,706 27,987
1985 214,101 4,677 676,687 -141,323
1984 207,700 -29,141 756,523 -273,686
1983 192,849 46,428 775,495 -269,755
1982 180,300 -20,026 805,664 -288,550
1981 166,578 -22,982 811,861 -278,525
1980 159,157 -133,508 864,372 -92,314
1979 78,143 118,334 950,298 -57,692
1978 -357,478 -84,695 1,011,234 -47,996
1977 -416,117 -55,504 1,070,397 -49,082
1976 -408,505 -52,741 1,127,750 -34,976
1975 -383,806 -47,717 1,204,989 107
1974 73,001 -45,225 1,332,960 -10,145
1973 101,304 -42,053 1,391,449 -34,674
1972 113,190 -40,764 1,372,006 -73,980
1971 113,813 -80,232 1,331,782 -107,778
1970 122,832 -193,008 1,230,496 33,731
1969 156,777 -17,676 1,195,962 49,447
1968 153,444 -17,745 1,191,930 43,593
1967 150,046 -16,983 1,258,475 29,632
1966 147,583 -17,216 682,072 68,934
1965 144,460 -16,930 1,126,448 -50,667
1964 141,216 -16,516 1,046,553 -100,696
1963 137,562 -15,929 987,770 -100,742
1962 132,861 -3,578 901,864 -57,075
1961 128,259 -4,764 893,522 -58,882
1960 124,237 -5,339 894,874 -150,371

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/cambodia/japan | CC BY

Over the last 10 years, 85.6% of the population change in Cambodia is from natural causes (a gain of 2,685,340 people) and 14.4% is from migration (a loss of 450,929 people). In Japan 75% is from natural causes (a loss of 5,853,772 people) and 25% is from migration (a gain of 1,955,351 people).

As of 2024, 83,925 residents or 0.5% of the population were not native-born in Cambodia, compared to 3,409,529 people or 2.8% in Japan.

Biggest cities by population

Cambodia
City Population
Phnom Penh 2.13M
Siem Reap 245K
Battambang 119K
Serei Saophoan 99K
Sihanoukville 71.1K
Kampong Cham 61.8K
Kampot 42.1K
Svay Rieng 41.4K
Prey Veng 33.1K
Stung Treng 29.7K
Japan
City Population
Tokyo 14.3M
Yokohama 3.76M
Osaka 2.75M
Nagoya 2.33M
Sapporo 1.96M
Fukuoka 1.6M
Kawasaki 1.54M
Kobe 1.52M
Kyoto 1.46M
Saitama 1.33M

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08); United Nations | World Population Prospects (1960–2026, retrieved 2026-07-08); U.S. Census Bureau (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).

GeoRank.org/population/cambodia/japan | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Wikidata (2026, retrieved 2026-07-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)

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