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

Updated on by Georank team

The latest officially reported population of Sri Lanka was 21,916,000 in 2024 vs 104,175 people in Tonga in 2024. In 2026, based on the adjusted UN estimation, the current Sri Lanka's population is 22,185,425 people compared to 103,309 in Tonga.

Population statistics:

  • Sri Lanka's population is 214.7 times bigger than Tonga's.
  • Sri Lanka is ranked the 63rd most populous country in the world, while Tonga is the 183rd.
  • The countries together account for 0.27% of the world: 0.27% for Sri Lanka vs 0.001% for Tonga.
  • For the last 10 years, Sri Lanka has had an average growth rate of +0.57% per year vs -0.25% in Tonga.
  • Since 2006, the population of Sri Lanka has increased from 20.4M people to 22.2M (9.01% growth), while Tonga has declined from 106K to 103K (2.77% decline).

Sri Lanka vs Tonga: population by year and forecast

Sri Lanka
Factual

Projection
Tonga
Factual

Projection
1x
Year Population
Sri Lanka Tonga
2100 20,270,496 117,647
2099 20,383,669 117,615
2098 20,498,567 117,560
2097 20,611,123 117,522
2096 20,723,560 117,491
2095 20,834,629 117,414
2094 20,943,809 117,321
2093 21,052,131 117,237
2092 21,158,833 117,127
2091 21,263,961 117,013
2090 21,371,263 116,869
2089 21,475,426 116,712
2088 21,577,177 116,511
2087 21,677,510 116,307
2086 21,777,420 116,118
2085 21,876,464 115,902
2084 21,970,336 115,658
2083 22,062,801 115,366
2082 22,151,745 115,071
2081 22,240,834 114,782
2080 22,326,555 114,453
2079 22,411,438 114,103
2078 22,489,772 113,740
2077 22,565,028 113,378
2076 22,637,463 112,974
2075 22,707,112 112,594
2074 22,778,489 112,208
2073 22,844,703 111,819
2072 22,905,707 111,405
2071 22,964,866 110,992
2070 23,022,515 110,605
2069 23,076,310 110,238
2068 23,129,541 109,853
2067 23,184,596 109,474
2066 23,234,419 109,090
2065 23,285,901 108,765
2064 23,331,390 108,405
2063 23,372,184 108,061
2062 23,409,522 107,738
2061 23,441,893 107,424
2060 23,474,032 107,145
2059 23,502,132 106,869
2058 23,528,076 106,617
2057 23,550,580 106,372
2056 23,570,923 106,158
2055 23,582,432 105,942
2054 23,591,414 105,725
2053 23,601,371 105,513
2052 23,605,361 105,313
2051 23,606,194 105,106
2050 23,603,330 104,871
2049 23,597,604 104,663
2048 23,587,307 104,414
2047 23,570,881 104,180
2046 23,547,409 103,879
2045 23,515,133 103,575
2044 23,483,546 103,241
2043 23,446,242 102,961
2042 23,404,983 102,718
2041 23,357,358 102,474
2040 23,306,148 102,254
2039 23,248,341 102,088
2038 23,187,512 101,861
2037 23,120,775 101,733
2036 23,053,427 101,653
2035 22,981,808 101,607
2034 22,906,587 101,598
2033 22,826,414 101,618
2032 22,742,267 101,659
2031 22,655,907 101,790
2030 22,564,038 101,954
2029 22,470,759 102,207
2028 22,370,999 102,521
2027 22,266,017 102,868
2026 22,155,543 103,309
2025 22,039,908 103,768
2024 21,916,000 104,175
2023 22,037,000 104,597
2022 22,181,000 105,042
2021 22,156,000 105,490
2020 21,919,000 105,704
2019 21,803,000 105,669
2018 21,670,000 105,567
2017 21,453,000 105,356
2016 21,209,000 105,524
2015 20,970,000 106,095
2014 20,778,000 106,609
2013 20,585,000 107,078
2012 21,169,458 107,460
2011 21,009,048 107,570
2010 20,879,089 107,400
2009 20,756,435 107,203
2008 20,629,378 107,020
2007 20,492,545 106,726
2006 20,352,411 106,253
2005 20,216,524 105,671
2004 20,087,605 105,071
2003 19,951,521 104,464
2002 19,805,752 103,874
2001 19,600,362 103,288
2000 19,293,054 102,677
1999 18,944,731 102,046
1998 18,596,003 101,388
1997 18,248,200 100,674
1996 17,905,018 100,275
1995 17,564,068 100,225
1994 17,275,773 100,166
1993 17,025,918 100,103
1992 16,739,284 100,022
1991 16,475,354 99,895
1990 16,352,458 99,700
1989 16,248,557 99,403
1988 16,078,621 98,969
1987 15,916,576 98,376
1986 15,731,256 98,010
1985 15,544,154 97,984
1984 15,441,860 97,990
1983 15,388,794 97,998
1982 15,286,567 97,980
1981 15,099,414 97,909
1980 14,847,974 97,769
1979 14,579,614 97,544
1978 14,310,128 97,204
1977 14,049,371 96,725
1976 13,796,770 95,325
1975 13,548,984 93,017
1974 13,305,693 90,683
1973 13,060,916 88,805
1972 12,809,205 87,356
1971 12,551,910 85,896
1970 12,287,110 84,401
1969 12,013,858 82,885
1968 11,736,088 81,353
1967 11,457,328 79,814
1966 11,183,928 78,002
1965 10,916,965 75,924
1964 10,653,397 73,879
1963 10,395,040 71,885
1962 10,143,754 69,940
1961 9,899,372 68,037
1960 9,661,389 66,170

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/population/sri-lanka/tonga | CC BY

From 2006 to 2016, the population of Sri Lanka increased by 856,589 people (a 4.21% growth), while Tonga lost 729 people (a 0.69% decline).

For the next 10 years, from 2016 to 2026, Sri Lanka gained 976,425 people (a 4.6% growth), while Tonga's population decreased by 2,215 people (a 2.1% decline).

Sri Lanka was ranked 55th most populous country in 2006 and is 63rd in 2026. Tonga was ranked 182nd in 2006 and ranked 183rd now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Sri Lanka's population will grow by 6.39% to 23,603,330 people with a rank change from 63rd to 70th. The population of Tonga will increase by 1.51% to 104,871 people and will still be ranked 183rd.

Sri Lanka is projected to reach its peak in 2051 at 23.6M people compared to the peak of 118K people in 2100 for Tonga.

Population growth rate by year

Sri Lanka
Factual

Projection
Tonga
Factual

Projection
1x
Year Growth rate
Sri Lanka Tonga
2100 -0.56% 0.03%
2099 -0.56% 0.05%
2098 -0.55% 0.03%
2097 -0.54% 0.03%
2096 -0.53% 0.07%
2095 -0.52% 0.08%
2094 -0.51% 0.07%
2093 -0.5% 0.09%
2092 -0.49% 0.1%
2091 -0.5% 0.12%
2090 -0.49% 0.13%
2089 -0.47% 0.17%
2088 -0.46% 0.18%
2087 -0.46% 0.16%
2086 -0.45% 0.19%
2085 -0.43% 0.21%
2084 -0.42% 0.25%
2083 -0.4% 0.26%
2082 -0.4% 0.25%
2081 -0.38% 0.29%
2080 -0.38% 0.31%
2079 -0.35% 0.32%
2078 -0.33% 0.32%
2077 -0.32% 0.36%
2076 -0.31% 0.34%
2075 -0.31% 0.34%
2074 -0.29% 0.35%
2073 -0.27% 0.37%
2072 -0.26% 0.37%
2071 -0.25% 0.35%
2070 -0.23% 0.33%
2069 -0.23% 0.35%
2068 -0.24% 0.35%
2067 -0.21% 0.35%
2066 -0.22% 0.3%
2065 -0.19% 0.33%
2064 -0.17% 0.32%
2063 -0.16% 0.3%
2062 -0.14% 0.29%
2061 -0.14% 0.26%
2060 -0.12% 0.26%
2059 -0.11% 0.24%
2058 -0.1% 0.23%
2057 -0.09% 0.2%
2056 -0.05% 0.2%
2055 -0.04% 0.2%
2054 -0.04% 0.2%
2053 -0.02% 0.19%
2052 -0.004% 0.2%
2051 0.01% 0.22%
2050 0.02% 0.2%
2049 0.04% 0.24%
2048 0.07% 0.22%
2047 0.1% 0.29%
2046 0.14% 0.29%
2045 0.13% 0.32%
2044 0.16% 0.27%
2043 0.18% 0.24%
2042 0.2% 0.24%
2041 0.22% 0.21%
2040 0.25% 0.16%
2039 0.26% 0.22%
2038 0.29% 0.13%
2037 0.29% 0.08%
2036 0.31% 0.05%
2035 0.33% 0.009%
2034 0.35% -0.02%
2033 0.37% -0.04%
2032 0.38% -0.13%
2031 0.41% -0.16%
2030 0.42% -0.25%
2029 0.45% -0.31%
2028 0.47% -0.34%
2027 0.5% -0.43%
2026 0.52% -0.44%
2025 0.57% -0.39%
2024 -0.55% -0.4%
2023 -0.65% -0.42%
2022 0.11% -0.42%
2021 1.08% -0.2%
2020 0.53% 0.03%
2019 0.61% 0.1%
2018 1.01% 0.2%
2017 1.15% -0.16%
2016 1.14% -0.54%
2015 0.92% -0.48%
2014 0.94% -0.44%
2013 -2.76% -0.36%
2012 0.76% -0.1%
2011 0.62% 0.16%
2010 0.59% 0.18%
2009 0.62% 0.17%
2008 0.67% 0.28%
2007 0.69% 0.45%
2006 0.67% 0.55%
2005 0.64% 0.57%
2004 0.68% 0.58%
2003 0.74% 0.57%
2002 1.05% 0.57%
2001 1.59% 0.6%
2000 1.84% 0.62%
1999 1.88% 0.65%
1998 1.91% 0.71%
1997 1.92% 0.4%
1996 1.94% 0.05%
1995 1.67% 0.06%
1994 1.47% 0.06%
1993 1.71% 0.08%
1992 1.6% 0.13%
1991 0.75% 0.2%
1990 0.64% 0.3%
1989 1.06% 0.44%
1988 1.02% 0.6%
1987 1.18% 0.37%
1986 1.2% 0.03%
1985 0.66% -0.006%
1984 0.34% -0.008%
1983 0.67% 0.02%
1982 1.24% 0.07%
1981 1.69% 0.14%
1980 1.84% 0.23%
1979 1.88% 0.35%
1978 1.86% 0.5%
1977 1.83% 1.47%
1976 1.83% 2.48%
1975 1.83% 2.57%
1974 1.87% 2.11%
1973 1.97% 1.66%
1972 2.05% 1.7%
1971 2.16% 1.77%
1970 2.27% 1.83%
1969 2.37% 1.88%
1968 2.43% 1.93%
1967 2.44% 2.32%
1966 2.45% 2.74%
1965 2.47% 2.77%
1964 2.49% 2.77%
1963 2.48% 2.78%
1962 2.47% 2.8%
1961 2.46% 2.82%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

GeoRank.org/population/sri-lanka/tonga | CC BY

In 2024, the population of Sri Lanka declined by 0.55%, while Tonga's population declined by 0.4%.

Live population counters

Sri Lanka Tonga
Current population
22185425
103309
Population rank 63/197 183/197
Percent of world population 0.27% 0.001%
One net population change
4.34 minutes
20.8 hours
One birth every
2.13 minutes
3.62 hours
One death every
2.91 minutes
13 hours
Daily growth/decline -332 -1
Annual growth/decline -121,000 -422
Annual growth/decline rate -0.55% -0.4%
Population growth rate rank 188/197 183/197
One migration net change every
17.2 minutes
4.09 hours
Annual migration change -30,724 -2,150
Net migration rank 165/196 99/196
Foreign-born residents 40,698 3,581
Foreign-born residents rank 156/195 187/195
Foreign-born share of population 0.2% 3.4%
Foreign-born share rank 190/195 113/195

Natural population change vs migration

Sri Lanka
Natural

Migration
Tonga
Natural

Migration
1x
Year Population change
Sri Lanka Tonga
Natural Migration Natural Migration
2025 - -30,724 - -2,150
2024 - -27,245 - -2,149
2023 66,111 -28,011 1,744 -2,173
2022 95,378 -27,435 1,772 -2,218
2021 121,858 -29,586 1,773 -2,220
2020 170,968 -29,875 1,816 -1,807
2019 172,243 -28,426 1,841 -1,778
2018 183,610 -28,607 1,873 -1,723
2017 187,993 -22,324 1,912 -1,642
2016 194,232 -18,388 1,989 -2,591
2015 201,815 -29,797 2,064 -2,610
2014 211,541 -33,672 2,135 -2,622
2013 221,021 -37,754 2,199 -2,637
2012 229,138 -41,955 2,255 -2,578
2011 224,461 -90,839 2,298 -2,198
2010 224,325 -98,060 2,332 -2,097
2009 200,175 -81,130 2,358 -2,204
2008 232,225 -97,144 2,397 -2,177
2007 248,287 -109,695 2,423 -2,057
2006 248,706 -107,045 2,459 -1,875
2005 248,683 -118,594 2,495 -1,906
2004 212,527 -84,795 2,478 -1,876
2003 252,008 -107,573 2,448 -1,844
2002 252,840 -105,718 2,396 -1,815
2001 244,377 19,273 2,358 -1,766
2000 227,060 123,894 2,346 -1,721
1999 206,876 138,799 2,352 -1,710
1998 201,059 150,724 2,344 -1,665
1997 208,193 135,636 2,332 -1,589
1996 215,290 127,236 2,393 -2,338
1995 221,957 117,416 2,476 -2,422
1994 228,904 8,323 2,547 -2,484
1993 226,257 36,232 2,594 -2,532
1992 222,230 88,542 2,622 -2,524
1991 218,117 -1,047 2,637 -2,484
1990 224,454 -195,736 2,641 -2,409
1989 212,401 -33,305 2,644 -2,280
1988 219,184 -58,415 2,649 -2,138
1987 226,414 -63,105 2,646 -1,970
1986 233,782 -26,460 2,704 -2,650
1985 247,836 -80,950 2,762 -2,775
1984 263,175 -225,450 2,814 -2,823
1983 277,768 -209,362 2,840 -2,840
1982 300,030 -163,987 2,853 -2,814
1981 328,096 -89,824 2,882 -2,778
1980 328,155 -63,541 2,885 -2,708
1979 329,791 -57,683 2,884 -2,604
1978 317,055 -50,189 2,862 -2,457
1977 300,038 -45,383 2,822 -2,273
1976 291,816 -41,258 2,769 -523
1975 282,496 -37,475 2,709 -346
1974 275,521 -33,979 2,650 -344
1973 278,577 -30,582 2,617 -1,168
1972 282,494 -27,071 2,605 -1,153
1971 281,200 -22,021 2,611 -1,138
1970 286,719 -16,299 2,628 -1,122
1969 286,218 -10,152 2,632 -1,101
1968 286,642 -7,163 2,614 -1,078
1967 284,738 -6,696 2,603 -1,060
1966 275,549 -6,794 2,550 -465
1965 272,422 -7,249 2,498 -426
1964 269,584 -7,614 2,445 -428
1963 262,880 -8,118 2,394 -426
1962 256,719 -8,909 2,343 -420
1961 251,087 -10,144 2,284 -401
1960 247,631 -12,610 2,230 -384

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

GeoRank.org/population/sri-lanka/tonga | CC BY

Over the last 10 years, 85.3% of the population change in Sri Lanka is from natural causes (a gain of 1,605,749 people) and 14.7% is from migration (a loss of 276,121 people). In Tonga 46.9% is from natural causes (a gain of 18,919 people) and 53.1% is from migration (a loss of 21,384 people).

As of 2024, 40,698 residents or 0.2% of the population were not native-born in Sri Lanka, compared to 3,581 people or 3.4% in Tonga.

Biggest cities by population

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
Tonga
City Population
Nukualofa 23.2K
Mua 5K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

GeoRank.org/population/sri-lanka/tonga | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

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