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Population in Cambodia compared to Sri Lanka: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Cambodia was 17,847,982 in 2025 vs 21,756,000 people in Sri Lanka in 2025. In 2026, based on the adjusted UN estimation, the current Cambodia's population is 18,159,213 people compared to 21,926,160 in Sri Lanka.

Population statistics:

  • Sri Lanka's population is 1.21 times bigger than Cambodia's.
  • Cambodia is ranked the 73rd most populous country in the world, while Sri Lanka is the 63rd.
  • The countries together account for 0.48% of the world: 0.22% for Cambodia vs 0.26% for Sri Lanka.
  • For the last 10 years, Cambodia has had an average growth rate of +1.35% per year vs +0.42% in Sri Lanka.
  • Since 2006, the population of Cambodia has increased from 13.6M people to 18.2M (33.1% growth), while Sri Lanka has grown from 20.4M to 21.9M (7.73% growth).

Cambodia vs Sri Lanka: population by year and forecast

Cambodia
Factual

Projection
Sri Lanka
Factual

Projection
1x
Year Population
Cambodia Sri Lanka
2100 22,901,914 20,009,380
2099 22,958,383 20,121,095
2098 23,015,331 20,234,513
2097 23,068,989 20,345,619
2096 23,118,854 20,456,607
2095 23,162,704 20,566,246
2094 23,207,466 20,674,019
2093 23,247,521 20,780,946
2092 23,285,540 20,886,274
2091 23,317,510 20,990,047
2090 23,349,581 21,095,968
2089 23,381,110 21,198,788
2088 23,404,619 21,299,229
2087 23,429,179 21,398,269
2086 23,450,970 21,496,892
2085 23,469,059 21,594,661
2084 23,486,236 21,687,323
2083 23,498,658 21,778,597
2082 23,506,751 21,866,395
2081 23,512,878 21,954,337
2080 23,518,840 22,038,953
2079 23,523,165 22,122,744
2078 23,523,989 22,200,069
2077 23,519,769 22,274,355
2076 23,512,440 22,345,857
2075 23,506,393 22,414,609
2074 23,494,004 22,485,066
2073 23,481,588 22,550,427
2072 23,463,712 22,610,645
2071 23,443,140 22,669,042
2070 23,420,769 22,725,948
2069 23,393,461 22,779,050
2068 23,362,386 22,831,596
2067 23,324,169 22,885,941
2066 23,283,399 22,935,123
2065 23,242,009 22,985,942
2064 23,191,929 23,030,844
2063 23,139,318 23,071,114
2062 23,083,489 23,107,970
2061 23,020,659 23,139,924
2060 22,951,813 23,171,649
2059 22,877,844 23,199,387
2058 22,799,179 23,224,997
2057 22,715,484 23,247,211
2056 22,628,607 23,267,292
2055 22,537,541 23,278,653
2054 22,440,088 23,287,520
2053 22,338,320 23,297,347
2052 22,231,339 23,301,287
2051 22,117,409 23,302,108
2050 22,001,254 23,299,282
2049 21,877,484 23,293,630
2048 21,749,790 23,283,465
2047 21,618,052 23,267,251
2046 21,480,480 23,244,081
2045 21,340,224 23,212,221
2044 21,195,511 23,181,041
2043 21,046,437 23,144,217
2042 20,893,438 23,103,489
2041 20,738,659 23,056,478
2040 20,582,241 23,005,928
2039 20,421,184 22,948,866
2038 20,256,225 22,888,821
2037 20,088,660 22,822,943
2036 19,922,341 22,756,462
2035 19,747,906 22,685,766
2034 19,573,792 22,611,514
2033 19,395,265 22,532,374
2032 19,215,259 22,449,310
2031 19,030,553 22,364,063
2030 18,843,778 22,273,377
2029 18,652,372 22,181,300
2028 18,456,287 22,082,826
2027 18,256,828 21,979,196
2026 18,056,115 21,870,145
2025 17,847,982 21,756,000
2024 17,638,801 21,916,000
2023 17,423,880 22,037,000
2022 17,201,724 22,181,000
2021 16,974,305 22,156,000
2020 16,725,474 21,919,000
2019 16,481,304 21,803,000
2018 16,274,522 21,670,000
2017 16,073,372 21,453,000
2016 15,852,803 21,209,000
2015 15,623,251 20,970,000
2014 15,396,772 20,778,000
2013 15,170,208 20,585,000
2012 14,945,085 21,169,458
2011 14,722,584 21,009,048
2010 14,500,726 20,879,089
2009 14,276,810 20,756,435
2008 14,053,479 20,629,378
2007 13,841,770 20,492,545
2006 13,639,028 20,352,411
2005 13,439,202 20,216,524
2004 13,244,731 20,087,605
2003 13,050,968 19,951,521
2002 12,855,241 19,805,752
2001 12,658,484 19,600,362
2000 12,462,336 19,293,054
1999 12,265,731 18,944,731
1998 12,058,173 18,596,003
1997 11,570,982 18,248,200
1996 10,801,270 17,905,018
1995 10,018,497 17,564,068
1994 9,239,162 17,275,773
1993 8,616,381 17,025,918
1992 8,113,083 16,739,284
1991 7,686,850 16,475,354
1990 7,374,752 16,352,458
1989 7,073,473 16,248,557
1988 6,812,014 16,078,621
1987 6,557,970 15,916,576
1986 6,285,693 15,731,256
1985 6,043,783 15,544,154
1984 5,845,117 15,441,860
1983 5,636,203 15,388,794
1982 5,436,432 15,286,567
1981 5,284,495 15,099,414
1980 5,199,872 14,847,974
1979 5,088,808 14,579,614
1978 5,211,653 14,310,128
1977 5,668,551 14,049,371
1976 6,134,991 13,796,770
1975 6,581,371 13,548,984
1974 6,783,240 13,305,693
1973 6,739,726 13,060,916
1972 6,673,886 12,809,205
1971 6,620,880 12,551,910
1970 6,639,182 12,287,110
1969 6,604,725 12,013,858
1968 6,467,324 11,736,088
1967 6,332,944 11,457,328
1966 6,201,232 11,183,928
1965 6,072,289 10,916,965
1964 5,946,178 10,653,397
1963 5,823,010 10,395,040
1962 5,697,558 10,143,754
1961 5,571,168 9,899,372
1960 5,449,966 9,661,389

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/sri-lanka | CC BY

From 2006 to 2016, the population of Cambodia increased by 2,213,775 people (a 16.2% growth), while Sri Lanka gained 856,589 people (a 4.21% growth).

For the next 10 years, from 2016 to 2026, Cambodia gained 2,306,410 people (a 14.5% growth), while Sri Lanka's population increased by 717,160 people (a 3.38% growth).

Cambodia was ranked 67th most populous country in 2006 and is 73rd in 2026. Sri Lanka was ranked 55th in 2006 and ranked 63rd 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 Sri Lanka will increase by 6.26% to 23,299,282 people and rank change from 63rd to 71st.

Cambodia is projected to reach its peak in 2078 at 23.5M people compared to the peak of 23.3M people in 2051 for Sri Lanka.

Population growth rate by year

Cambodia
Factual

Projection
Sri Lanka
Factual

Projection
1x
Year Growth rate
Cambodia Sri Lanka
2100 -0.25% -0.56%
2099 -0.25% -0.56%
2098 -0.23% -0.55%
2097 -0.22% -0.54%
2096 -0.19% -0.53%
2095 -0.19% -0.52%
2094 -0.17% -0.51%
2093 -0.16% -0.5%
2092 -0.14% -0.49%
2091 -0.14% -0.5%
2090 -0.13% -0.49%
2089 -0.1% -0.47%
2088 -0.1% -0.46%
2087 -0.09% -0.46%
2086 -0.08% -0.45%
2085 -0.07% -0.43%
2084 -0.05% -0.42%
2083 -0.03% -0.4%
2082 -0.03% -0.4%
2081 -0.03% -0.38%
2080 -0.02% -0.38%
2079 -0.004% -0.35%
2078 0.02% -0.33%
2077 0.03% -0.32%
2076 0.03% -0.31%
2075 0.05% -0.31%
2074 0.05% -0.29%
2073 0.08% -0.27%
2072 0.09% -0.26%
2071 0.1% -0.25%
2070 0.12% -0.23%
2069 0.13% -0.23%
2068 0.16% -0.24%
2067 0.18% -0.21%
2066 0.18% -0.22%
2065 0.22% -0.19%
2064 0.23% -0.17%
2063 0.24% -0.16%
2062 0.27% -0.14%
2061 0.3% -0.14%
2060 0.32% -0.12%
2059 0.35% -0.11%
2058 0.37% -0.1%
2057 0.38% -0.09%
2056 0.4% -0.05%
2055 0.43% -0.04%
2054 0.46% -0.04%
2053 0.48% -0.02%
2052 0.52% -0.004%
2051 0.53% 0.01%
2050 0.57% 0.02%
2049 0.59% 0.04%
2048 0.61% 0.07%
2047 0.64% 0.1%
2046 0.66% 0.14%
2045 0.68% 0.13%
2044 0.71% 0.16%
2043 0.73% 0.18%
2042 0.75% 0.2%
2041 0.76% 0.22%
2040 0.79% 0.25%
2039 0.81% 0.26%
2038 0.83% 0.29%
2037 0.83% 0.29%
2036 0.88% 0.31%
2035 0.89% 0.33%
2034 0.92% 0.35%
2033 0.94% 0.37%
2032 0.97% 0.38%
2031 0.99% 0.41%
2030 1.03% 0.42%
2029 1.06% 0.45%
2028 1.09% 0.47%
2027 1.11% 0.5%
2026 1.17% 0.52%
2025 1.19% -0.73%
2024 1.23% -0.55%
2023 1.29% -0.65%
2022 1.34% 0.11%
2021 1.49% 1.08%
2020 1.48% 0.53%
2019 1.27% 0.61%
2018 1.25% 1.01%
2017 1.39% 1.15%
2016 1.47% 1.14%
2015 1.47% 0.92%
2014 1.49% 0.94%
2013 1.51% -2.76%
2012 1.51% 0.76%
2011 1.53% 0.62%
2010 1.57% 0.59%
2009 1.59% 0.62%
2008 1.53% 0.67%
2007 1.49% 0.69%
2006 1.49% 0.67%
2005 1.47% 0.64%
2004 1.48% 0.68%
2003 1.52% 0.74%
2002 1.55% 1.05%
2001 1.57% 1.59%
2000 1.6% 1.84%
1999 1.72% 1.88%
1998 4.21% 1.91%
1997 7.13% 1.92%
1996 7.81% 1.94%
1995 8.44% 1.67%
1994 7.23% 1.47%
1993 6.2% 1.71%
1992 5.54% 1.6%
1991 4.23% 0.75%
1990 4.26% 0.64%
1989 3.84% 1.06%
1988 3.87% 1.02%
1987 4.33% 1.18%
1986 4% 1.2%
1985 3.4% 0.66%
1984 3.71% 0.34%
1983 3.67% 0.67%
1982 2.88% 1.24%
1981 1.63% 1.69%
1980 2.18% 1.84%
1979 -2.36% 1.88%
1978 -8.06% 1.86%
1977 -7.6% 1.83%
1976 -6.78% 1.83%
1975 -2.98% 1.83%
1974 0.65% 1.87%
1973 0.99% 1.97%
1972 0.8% 2.05%
1971 -0.28% 2.16%
1970 0.52% 2.27%
1969 2.12% 2.37%
1968 2.12% 2.43%
1967 2.12% 2.44%
1966 2.12% 2.45%
1965 2.12% 2.47%
1964 2.12% 2.49%
1963 2.2% 2.48%
1962 2.27% 2.47%
1961 2.22% 2.46%

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/sri-lanka | CC BY

In 2025, the population of Cambodia grew by 1.19%, while Sri Lanka's population declined by 0.73%.

Live population counters

Cambodia Sri Lanka
Current population
18159213
21926160
Population rank 73/197 63/197
Percent of world population 0.22% 0.26%
One net population change
2.52 minutes
3.29 minutes
One birth every
1.47 minutes
2.37 minutes
One death every
4.62 minutes
3.07 minutes
Daily growth/decline +573 -438
Annual growth/decline +209,181 -160,000
Annual growth/decline rate +1.19% -0.73%
Population growth rate rank 88/197 190/197
One migration net change every
16.7 minutes
17.2 minutes
Annual migration change -31,469 -30,724
Net migration rank 167/196 165/196
Foreign-born residents 83,925 40,698
Foreign-born residents rank 136/195 156/195
Foreign-born share of population 0.5% 0.2%
Foreign-born share rank 175/195 190/195

Natural population change vs migration

Cambodia
Natural

Migration
Sri Lanka
Natural

Migration
1x
Year Population change
Cambodia Sri Lanka
Natural Migration Natural Migration
2025 - -31,469 - -30,724
2024 244,386 -32,960 50,407 -27,245
2023 250,242 -31,837 66,111 -28,011
2022 257,269 -31,350 95,378 -27,435
2021 255,939 -27,025 121,858 -29,586
2020 268,745 0 170,968 -29,875
2019 276,870 -57,268 172,243 -28,426
2018 280,671 -86,702 183,610 -28,607
2017 282,698 -74,362 187,993 -22,324
2016 284,130 -51,324 194,232 -18,388
2015 284,390 -58,101 201,815 -29,797
2014 283,193 -56,536 211,541 -33,672
2013 281,013 -54,554 221,021 -37,754
2012 276,649 -52,874 229,138 -41,955
2011 272,161 -50,941 224,461 -90,839
2010 272,266 -49,781 224,325 -98,060
2009 274,700 -49,354 200,175 -81,130
2008 272,132 -50,809 232,225 -97,144
2007 270,745 -68,653 248,287 -109,695
2006 263,697 -60,315 248,706 -107,045
2005 256,756 -60,473 248,683 -118,594
2004 251,650 -58,972 212,527 -84,795
2003 251,884 -57,026 252,008 -107,573
2002 251,860 -55,245 252,840 -105,718
2001 250,726 -53,815 244,377 19,273
2000 246,330 -50,957 227,060 123,894
1999 245,425 -47,608 206,876 138,799
1998 251,076 -33,781 201,059 150,724
1997 252,351 504,742 208,193 135,636
1996 274,147 508,187 215,290 127,236
1995 280,168 503,042 221,957 117,416
1994 286,728 488,732 228,904 8,323
1993 282,221 187,883 226,257 36,232
1992 260,673 275,823 222,230 88,542
1991 257,709 58,264 218,117 -1,047
1990 249,776 58,455 224,454 -195,736
1989 239,211 55,125 212,401 -33,305
1988 243,203 -14,627 219,184 -58,415
1987 235,064 44,442 226,414 -63,105
1986 221,684 43,356 233,782 -26,460
1985 214,101 4,677 247,836 -80,950
1984 207,700 -29,141 263,175 -225,450
1983 192,849 46,428 277,768 -209,362
1982 180,300 -20,026 300,030 -163,987
1981 166,578 -22,982 328,096 -89,824
1980 159,157 -133,508 328,155 -63,541
1979 78,143 118,334 329,791 -57,683
1978 -357,478 -84,695 317,055 -50,189
1977 -416,117 -55,504 300,038 -45,383
1976 -408,505 -52,741 291,816 -41,258
1975 -383,806 -47,717 282,496 -37,475
1974 73,001 -45,225 275,521 -33,979
1973 101,304 -42,053 278,577 -30,582
1972 113,190 -40,764 282,494 -27,071
1971 113,813 -80,232 281,200 -22,021
1970 122,832 -193,008 286,719 -16,299
1969 156,777 -17,676 286,218 -10,152
1968 153,444 -17,745 286,642 -7,163
1967 150,046 -16,983 284,738 -6,696
1966 147,583 -17,216 275,549 -6,794
1965 144,460 -16,930 272,422 -7,249
1964 141,216 -16,516 269,584 -7,614
1963 137,562 -15,929 262,880 -8,118
1962 132,861 -3,578 256,719 -8,909
1961 128,259 -4,764 251,087 -10,144
1960 124,237 -5,339 247,631 -12,610

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

GeoRank.org/population/cambodia/sri-lanka | 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 Sri Lanka 84.3% is from natural causes (a gain of 1,444,615 people) and 15.7% is from migration (a loss of 269,694 people).

As of 2024, 83,925 residents or 0.5% of the population were not native-born in Cambodia, compared to 40,698 people or 0.2% in Sri Lanka.

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
Sri Lanka
City Population
Colombo 648K
Gampaha 191K
Beruwala 165K
Negombo 142K
Kandy 120K
Sri Jayawardenepura Kotte 116K
Trincomalee 99.1K
Galle 93.1K
Matara 68.2K
Anuradhapura 63.2K

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/sri-lanka | 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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