The latest officially reported population of Sri Lanka was 21,756,000 in 2025 vs 103,742 people in Tonga in 2025. In 2026, based on the adjusted UN estimation, the current Sri Lanka's population is 21,926,160 people compared to 103,283 in Tonga.
Population statistics:
- Sri Lanka's population is 212.3 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: 0.26% for Sri Lanka vs 0.001% for Tonga.
- For the last 10 years, Sri Lanka has had an average growth rate of +0.42% per year vs -0.25% in Tonga.
- Since 2006, the population of Sri Lanka has increased from 20.4M people to 21.9M (7.73% growth), while Tonga has declined from 106K to 103K (2.8% decline).
Sri Lanka vs Tonga: population by year and forecast
| Year | Population | |
|---|---|---|
Sri Lanka
|
Tonga
|
|
| 2100 | 20,009,380 | 117,617 |
| 2099 | 20,121,095 | 117,585 |
| 2098 | 20,234,513 | 117,530 |
| 2097 | 20,345,619 | 117,492 |
| 2096 | 20,456,607 | 117,461 |
| 2095 | 20,566,246 | 117,383 |
| 2094 | 20,674,019 | 117,290 |
| 2093 | 20,780,946 | 117,207 |
| 2092 | 20,886,274 | 117,097 |
| 2091 | 20,990,047 | 116,983 |
| 2090 | 21,095,968 | 116,838 |
| 2089 | 21,198,788 | 116,682 |
| 2088 | 21,299,229 | 116,481 |
| 2087 | 21,398,269 | 116,277 |
| 2086 | 21,496,892 | 116,088 |
| 2085 | 21,594,661 | 115,872 |
| 2084 | 21,687,323 | 115,628 |
| 2083 | 21,778,597 | 115,336 |
| 2082 | 21,866,395 | 115,041 |
| 2081 | 21,954,337 | 114,752 |
| 2080 | 22,038,953 | 114,424 |
| 2079 | 22,122,744 | 114,074 |
| 2078 | 22,200,069 | 113,710 |
| 2077 | 22,274,355 | 113,349 |
| 2076 | 22,345,857 | 112,945 |
| 2075 | 22,414,609 | 112,565 |
| 2074 | 22,485,066 | 112,179 |
| 2073 | 22,550,427 | 111,790 |
| 2072 | 22,610,645 | 111,377 |
| 2071 | 22,669,042 | 110,963 |
| 2070 | 22,725,948 | 110,576 |
| 2069 | 22,779,050 | 110,209 |
| 2068 | 22,831,596 | 109,825 |
| 2067 | 22,885,941 | 109,446 |
| 2066 | 22,935,123 | 109,062 |
| 2065 | 22,985,942 | 108,736 |
| 2064 | 23,030,844 | 108,377 |
| 2063 | 23,071,114 | 108,033 |
| 2062 | 23,107,970 | 107,710 |
| 2061 | 23,139,924 | 107,396 |
| 2060 | 23,171,649 | 107,117 |
| 2059 | 23,199,387 | 106,842 |
| 2058 | 23,224,997 | 106,589 |
| 2057 | 23,247,211 | 106,345 |
| 2056 | 23,267,292 | 106,130 |
| 2055 | 23,278,653 | 105,915 |
| 2054 | 23,287,520 | 105,698 |
| 2053 | 23,297,347 | 105,486 |
| 2052 | 23,301,287 | 105,286 |
| 2051 | 23,302,108 | 105,079 |
| 2050 | 23,299,282 | 104,844 |
| 2049 | 23,293,630 | 104,636 |
| 2048 | 23,283,465 | 104,387 |
| 2047 | 23,267,251 | 104,154 |
| 2046 | 23,244,081 | 103,852 |
| 2045 | 23,212,221 | 103,548 |
| 2044 | 23,181,041 | 103,215 |
| 2043 | 23,144,217 | 102,934 |
| 2042 | 23,103,489 | 102,692 |
| 2041 | 23,056,478 | 102,447 |
| 2040 | 23,005,928 | 102,228 |
| 2039 | 22,948,866 | 102,061 |
| 2038 | 22,888,821 | 101,835 |
| 2037 | 22,822,943 | 101,707 |
| 2036 | 22,756,462 | 101,627 |
| 2035 | 22,685,766 | 101,580 |
| 2034 | 22,611,514 | 101,571 |
| 2033 | 22,532,374 | 101,591 |
| 2032 | 22,449,310 | 101,633 |
| 2031 | 22,364,063 | 101,764 |
| 2030 | 22,273,377 | 101,928 |
| 2029 | 22,181,300 | 102,181 |
| 2028 | 22,082,826 | 102,494 |
| 2027 | 21,979,196 | 102,841 |
| 2026 | 21,870,145 | 103,283 |
| 2025 | 21,756,000 | 103,742 |
| 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 (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).
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 717,160 people (a 3.38% growth), while Tonga's population decreased by 2,241 people (a 2.12% 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 6.26% to 23,299,282 people with a rank change from 63rd to 71st. The population of Tonga will increase by 1.51% to 104,844 people and will still be ranked 183rd.
Sri Lanka is projected to reach its peak in 2051 at 23.3M people compared to the peak of 118K people in 2100 for Tonga.
Population growth rate by year
| 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 | -0.73% | -0.42% |
| 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 (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).
GeoRank.org/population/sri-lanka/tonga | CC BY
In 2025, the population of Sri Lanka declined by 0.73%, while Tonga's population declined by 0.42%.
Live population counters
|
Sri Lanka
|
Tonga
|
|
|---|---|---|
| Current population |
21926160
|
103283
|
| Population rank | 63/197 | 183/197 |
| Percent of world population | 0.26% | 0.001% |
| One net population change |
3.29 minutes
|
20.3 hours
|
| One birth every |
2.37 minutes
|
3.65 hours
|
| One death every |
3.07 minutes
|
13.1 hours
|
| Daily growth/decline | -438 | -1 |
| Annual growth/decline | -160,000 | -433 |
| Annual growth/decline rate | -0.73% | -0.42% |
| Population growth rate rank | 190/197 | 181/197 |
| 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
| Year | Population change | |||
|---|---|---|---|---|
|
Sri Lanka
|
Tonga
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -30,724 | - | -2,150 |
| 2024 | 50,407 | -27,245 | 1,729 | -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 2026-07-08).
GeoRank.org/population/sri-lanka/tonga | CC BY
Over the last 10 years, 84.3% of the population change in Sri Lanka is from natural causes (a gain of 1,444,615 people) and 15.7% is from migration (a loss of 269,694 people). In Tonga 47% is from natural causes (a gain of 18,513 people) and 53% is from migration (a loss of 20,911 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
Compare countries by 7 more topics
Population differences between Sri Lanka and Tonga
|
Sri Lanka
|
Tonga
|
|
|---|---|---|
| Life expectancy | 78 years | 73.4 years |
| Average age | 36 years | 28.1 years |
| Median age | 34.4 years | 22 years |
| Male:Female ratio | 48.4:51.6 | 47.2:52.8 |
| Fertility rate | 1.95 births per woman | 3.1 births per woman |
| Population density | 916 ppl/mi² | 372 ppl/mi² |
Population map with other countries
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/sri-lanka/tonga | CC BY
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Data sources:
- World Bank | Health (1960–2025, retrieved 2026-07-08)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
- U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
- Wikidata (2026, retrieved 2026-07-08)
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