The latest officially reported population of Sierra Leone was 8,819,794 in 2025 vs 8,591,626 people in Togo in 2025. In 2026, based on the adjusted UN estimation, the current Sierra Leone's population is 9,090,531 people compared to 8,873,660 in Togo.
Population statistics:
- Sierra Leone's population is 1.02 times bigger than Togo's.
- Sierra Leone is ranked the 100th most populous country in the world, while Togo is the 102nd.
- The countries together account for 0.22% of the world: 0.11% for Sierra Leone vs 0.11% for Togo.
- For the last 10 years, Sierra Leone has had an average growth rate of +2.29% per year vs +1.96% in Togo.
- Since 2006, the population of Sierra Leone has increased from 5.62M people to 9.09M (61.6% growth), while Togo has grown from 5.57M to 8.87M (59.3% growth).
Sierra Leone vs Togo: population by year and forecast
| Year | Population | |
|---|---|---|
Sierra Leone
|
Togo
|
|
| 2100 | 16,107,087 | 23,426,426 |
| 2099 | 16,121,940 | 23,284,304 |
| 2098 | 16,135,035 | 23,142,242 |
| 2097 | 16,149,905 | 22,996,845 |
| 2096 | 16,160,672 | 22,848,978 |
| 2095 | 16,169,304 | 22,702,297 |
| 2094 | 16,168,902 | 22,543,427 |
| 2093 | 16,173,609 | 22,395,941 |
| 2092 | 16,170,778 | 22,243,621 |
| 2091 | 16,163,901 | 22,083,590 |
| 2090 | 16,154,165 | 21,924,631 |
| 2089 | 16,142,526 | 21,761,057 |
| 2088 | 16,128,775 | 21,592,941 |
| 2087 | 16,112,585 | 21,431,785 |
| 2086 | 16,085,549 | 21,252,236 |
| 2085 | 16,064,212 | 21,073,697 |
| 2084 | 16,040,563 | 20,894,251 |
| 2083 | 16,006,923 | 20,708,859 |
| 2082 | 15,970,872 | 20,520,204 |
| 2081 | 15,930,880 | 20,325,061 |
| 2080 | 15,892,665 | 20,126,833 |
| 2079 | 15,850,728 | 19,927,036 |
| 2078 | 15,801,450 | 19,738,820 |
| 2077 | 15,750,408 | 19,547,568 |
| 2076 | 15,695,310 | 19,348,296 |
| 2075 | 15,635,345 | 19,141,211 |
| 2074 | 15,580,279 | 18,936,045 |
| 2073 | 15,512,655 | 18,729,441 |
| 2072 | 15,442,481 | 18,525,904 |
| 2071 | 15,370,747 | 18,321,024 |
| 2070 | 15,293,426 | 18,116,069 |
| 2069 | 15,212,664 | 17,905,429 |
| 2068 | 15,124,069 | 17,689,344 |
| 2067 | 15,028,190 | 17,477,786 |
| 2066 | 14,931,295 | 17,262,406 |
| 2065 | 14,833,794 | 17,049,758 |
| 2064 | 14,736,872 | 16,836,991 |
| 2063 | 14,638,180 | 16,618,806 |
| 2062 | 14,525,736 | 16,404,475 |
| 2061 | 14,420,068 | 16,190,814 |
| 2060 | 14,307,451 | 15,976,939 |
| 2059 | 14,194,972 | 15,767,690 |
| 2058 | 14,077,124 | 15,556,151 |
| 2057 | 13,957,197 | 15,341,629 |
| 2056 | 13,832,494 | 15,125,918 |
| 2055 | 13,702,508 | 14,903,207 |
| 2054 | 13,576,231 | 14,687,272 |
| 2053 | 13,440,929 | 14,471,467 |
| 2052 | 13,299,910 | 14,253,335 |
| 2051 | 13,152,910 | 14,030,311 |
| 2050 | 13,006,688 | 13,812,790 |
| 2049 | 12,863,637 | 13,588,431 |
| 2048 | 12,712,671 | 13,367,245 |
| 2047 | 12,566,944 | 13,148,252 |
| 2046 | 12,411,042 | 12,927,000 |
| 2045 | 12,254,651 | 12,705,654 |
| 2044 | 12,088,895 | 12,484,181 |
| 2043 | 11,928,393 | 12,261,788 |
| 2042 | 11,767,372 | 12,044,285 |
| 2041 | 11,599,942 | 11,827,268 |
| 2040 | 11,428,331 | 11,614,781 |
| 2039 | 11,259,845 | 11,398,360 |
| 2038 | 11,097,180 | 11,185,757 |
| 2037 | 10,928,754 | 10,975,322 |
| 2036 | 10,757,928 | 10,767,990 |
| 2035 | 10,582,918 | 10,559,369 |
| 2034 | 10,411,088 | 10,353,764 |
| 2033 | 10,238,503 | 10,148,738 |
| 2032 | 10,059,929 | 9,944,247 |
| 2031 | 9,881,109 | 9,741,001 |
| 2030 | 9,705,485 | 9,541,309 |
| 2029 | 9,529,493 | 9,347,000 |
| 2028 | 9,358,412 | 9,155,475 |
| 2027 | 9,177,288 | 8,965,572 |
| 2026 | 8,998,902 | 8,776,585 |
| 2025 | 8,819,794 | 8,591,626 |
| 2024 | 8,642,022 | 8,406,558 |
| 2023 | 8,460,512 | 8,223,850 |
| 2022 | 8,276,807 | 8,068,616 |
| 2021 | 8,094,602 | 7,936,176 |
| 2020 | 7,912,558 | 7,788,054 |
| 2019 | 7,731,991 | 7,619,925 |
| 2018 | 7,554,563 | 7,458,206 |
| 2017 | 7,379,299 | 7,324,386 |
| 2016 | 7,205,328 | 7,200,884 |
| 2015 | 7,037,655 | 7,071,502 |
| 2014 | 6,876,385 | 6,937,644 |
| 2013 | 6,714,051 | 6,798,848 |
| 2012 | 6,551,080 | 6,653,718 |
| 2011 | 6,387,251 | 6,500,582 |
| 2010 | 6,222,714 | 6,325,788 |
| 2009 | 6,055,646 | 6,130,946 |
| 2008 | 5,894,722 | 5,936,138 |
| 2007 | 5,749,352 | 5,748,443 |
| 2006 | 5,624,466 | 5,569,664 |
| 2005 | 5,501,712 | 5,413,154 |
| 2004 | 5,355,717 | 5,281,320 |
| 2003 | 5,177,687 | 5,154,112 |
| 2002 | 4,971,435 | 5,027,130 |
| 2001 | 4,692,716 | 4,904,144 |
| 2000 | 4,423,611 | 4,783,722 |
| 1999 | 4,318,043 | 4,665,754 |
| 1998 | 4,295,785 | 4,551,635 |
| 1997 | 4,253,716 | 4,438,794 |
| 1996 | 4,199,210 | 4,291,136 |
| 1995 | 4,179,179 | 4,110,450 |
| 1994 | 4,173,105 | 3,904,183 |
| 1993 | 4,157,130 | 3,887,974 |
| 1992 | 4,166,366 | 3,932,581 |
| 1991 | 4,246,267 | 3,822,636 |
| 1990 | 4,196,828 | 3,714,021 |
| 1989 | 4,034,037 | 3,606,918 |
| 1988 | 3,934,517 | 3,501,545 |
| 1987 | 3,829,718 | 3,397,614 |
| 1986 | 3,728,380 | 3,296,340 |
| 1985 | 3,638,438 | 3,194,539 |
| 1984 | 3,558,758 | 3,105,743 |
| 1983 | 3,481,646 | 3,033,077 |
| 1982 | 3,408,183 | 2,961,652 |
| 1981 | 3,338,940 | 2,879,440 |
| 1980 | 3,272,089 | 2,791,408 |
| 1979 | 3,207,499 | 2,714,349 |
| 1978 | 3,145,517 | 2,646,501 |
| 1977 | 3,085,354 | 2,583,984 |
| 1976 | 3,028,820 | 2,523,488 |
| 1975 | 2,974,657 | 2,463,796 |
| 1974 | 2,920,459 | 2,404,292 |
| 1973 | 2,866,955 | 2,344,510 |
| 1972 | 2,814,388 | 2,283,863 |
| 1971 | 2,763,222 | 2,219,826 |
| 1970 | 2,712,286 | 2,149,478 |
| 1969 | 2,661,365 | 2,043,416 |
| 1968 | 2,611,532 | 1,953,523 |
| 1967 | 2,562,384 | 1,912,764 |
| 1966 | 2,514,638 | 1,873,489 |
| 1965 | 2,468,666 | 1,835,588 |
| 1964 | 2,424,390 | 1,799,410 |
| 1963 | 2,382,258 | 1,765,072 |
| 1962 | 2,342,242 | 1,732,959 |
| 1961 | 2,304,227 | 1,702,717 |
| 1960 | 2,268,356 | 1,673,110 |
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/sierra-leone/togo | CC BY 
From 2006 to 2016, the population of Sierra Leone increased by 1,580,862 people (a 28.1% growth), while Togo gained 1,631,220 people (a 29.3% growth).
For the next 10 years, from 2016 to 2026, Sierra Leone gained 1,885,203 people (a 26.2% growth), while Togo's population increased by 1,672,776 people (a 23.2% growth).
Sierra Leone was ranked 105th most populous country in 2006 and is 100th in 2026. Togo was ranked 106th in 2006 and ranked 102nd now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Sierra Leone's population will grow by 43.1% to 13,006,688 people with a rank change from 100th to 91st. The population of Togo will increase by 55.7% to 13,812,790 people and rank change from 102nd to 88th.
Sierra Leone is projected to reach its peak in 2093 at 16.2M people compared to the peak of 23.4M people in 2100 for Togo.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
Sierra Leone
|
Togo
|
|
| 2100 | -0.09% | 0.61% |
| 2099 | -0.08% | 0.61% |
| 2098 | -0.09% | 0.63% |
| 2097 | -0.07% | 0.65% |
| 2096 | -0.05% | 0.65% |
| 2095 | 0.002% | 0.7% |
| 2094 | -0.03% | 0.66% |
| 2093 | 0.02% | 0.68% |
| 2092 | 0.04% | 0.72% |
| 2091 | 0.06% | 0.73% |
| 2090 | 0.07% | 0.75% |
| 2089 | 0.09% | 0.78% |
| 2088 | 0.1% | 0.75% |
| 2087 | 0.17% | 0.84% |
| 2086 | 0.13% | 0.85% |
| 2085 | 0.15% | 0.86% |
| 2084 | 0.21% | 0.9% |
| 2083 | 0.23% | 0.92% |
| 2082 | 0.25% | 0.96% |
| 2081 | 0.24% | 0.98% |
| 2080 | 0.26% | 1% |
| 2079 | 0.31% | 0.95% |
| 2078 | 0.32% | 0.98% |
| 2077 | 0.35% | 1.03% |
| 2076 | 0.38% | 1.08% |
| 2075 | 0.35% | 1.08% |
| 2074 | 0.44% | 1.1% |
| 2073 | 0.45% | 1.1% |
| 2072 | 0.47% | 1.12% |
| 2071 | 0.51% | 1.13% |
| 2070 | 0.53% | 1.18% |
| 2069 | 0.59% | 1.22% |
| 2068 | 0.64% | 1.21% |
| 2067 | 0.65% | 1.25% |
| 2066 | 0.66% | 1.25% |
| 2065 | 0.66% | 1.26% |
| 2064 | 0.67% | 1.31% |
| 2063 | 0.77% | 1.31% |
| 2062 | 0.73% | 1.32% |
| 2061 | 0.79% | 1.34% |
| 2060 | 0.79% | 1.33% |
| 2059 | 0.84% | 1.36% |
| 2058 | 0.86% | 1.4% |
| 2057 | 0.9% | 1.43% |
| 2056 | 0.95% | 1.49% |
| 2055 | 0.93% | 1.47% |
| 2054 | 1.01% | 1.49% |
| 2053 | 1.06% | 1.53% |
| 2052 | 1.12% | 1.59% |
| 2051 | 1.12% | 1.57% |
| 2050 | 1.11% | 1.65% |
| 2049 | 1.19% | 1.65% |
| 2048 | 1.16% | 1.67% |
| 2047 | 1.26% | 1.71% |
| 2046 | 1.28% | 1.74% |
| 2045 | 1.37% | 1.77% |
| 2044 | 1.35% | 1.81% |
| 2043 | 1.37% | 1.81% |
| 2042 | 1.44% | 1.83% |
| 2041 | 1.5% | 1.83% |
| 2040 | 1.5% | 1.9% |
| 2039 | 1.47% | 1.9% |
| 2038 | 1.54% | 1.92% |
| 2037 | 1.59% | 1.93% |
| 2036 | 1.65% | 1.98% |
| 2035 | 1.65% | 1.99% |
| 2034 | 1.69% | 2.02% |
| 2033 | 1.78% | 2.06% |
| 2032 | 1.81% | 2.09% |
| 2031 | 1.81% | 2.09% |
| 2030 | 1.85% | 2.08% |
| 2029 | 1.83% | 2.09% |
| 2028 | 1.97% | 2.12% |
| 2027 | 1.98% | 2.15% |
| 2026 | 2.03% | 2.15% |
| 2025 | 2.06% | 2.2% |
| 2024 | 2.15% | 2.22% |
| 2023 | 2.22% | 1.92% |
| 2022 | 2.25% | 1.67% |
| 2021 | 2.3% | 1.9% |
| 2020 | 2.34% | 2.21% |
| 2019 | 2.35% | 2.17% |
| 2018 | 2.38% | 1.83% |
| 2017 | 2.41% | 1.72% |
| 2016 | 2.38% | 1.83% |
| 2015 | 2.35% | 1.93% |
| 2014 | 2.42% | 2.04% |
| 2013 | 2.49% | 2.18% |
| 2012 | 2.56% | 2.36% |
| 2011 | 2.64% | 2.76% |
| 2010 | 2.76% | 3.18% |
| 2009 | 2.73% | 3.28% |
| 2008 | 2.53% | 3.27% |
| 2007 | 2.22% | 3.21% |
| 2006 | 2.23% | 2.89% |
| 2005 | 2.73% | 2.5% |
| 2004 | 3.44% | 2.47% |
| 2003 | 4.15% | 2.53% |
| 2002 | 5.94% | 2.51% |
| 2001 | 6.08% | 2.52% |
| 2000 | 2.44% | 2.53% |
| 1999 | 0.52% | 2.51% |
| 1998 | 0.99% | 2.54% |
| 1997 | 1.3% | 3.44% |
| 1996 | 0.48% | 4.4% |
| 1995 | 0.15% | 5.28% |
| 1994 | 0.38% | 0.42% |
| 1993 | -0.22% | -1.13% |
| 1992 | -1.88% | 2.88% |
| 1991 | 1.18% | 2.92% |
| 1990 | 4.04% | 2.97% |
| 1989 | 2.53% | 3.01% |
| 1988 | 2.74% | 3.06% |
| 1987 | 2.72% | 3.07% |
| 1986 | 2.47% | 3.19% |
| 1985 | 2.24% | 2.86% |
| 1984 | 2.21% | 2.4% |
| 1983 | 2.16% | 2.41% |
| 1982 | 2.07% | 2.86% |
| 1981 | 2.04% | 3.15% |
| 1980 | 2.01% | 2.84% |
| 1979 | 1.97% | 2.56% |
| 1978 | 1.95% | 2.42% |
| 1977 | 1.87% | 2.4% |
| 1976 | 1.82% | 2.42% |
| 1975 | 1.86% | 2.47% |
| 1974 | 1.87% | 2.55% |
| 1973 | 1.87% | 2.66% |
| 1972 | 1.85% | 2.88% |
| 1971 | 1.88% | 3.27% |
| 1970 | 1.91% | 5.19% |
| 1969 | 1.91% | 4.6% |
| 1968 | 1.92% | 2.13% |
| 1967 | 1.9% | 2.1% |
| 1966 | 1.86% | 2.06% |
| 1965 | 1.83% | 2.01% |
| 1964 | 1.77% | 1.95% |
| 1963 | 1.71% | 1.85% |
| 1962 | 1.65% | 1.78% |
| 1961 | 1.58% | 1.77% |
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/sierra-leone/togo | CC BY
In 2025, the population of Sierra Leone grew by 2.06%, while Togo's population grew by 2.2%.
Live population counters
|
Sierra Leone
|
Togo
|
|
|---|---|---|
| Current population |
9090531
|
8873660
|
| Population rank | 100/197 | 102/197 |
| Percent of world population | 0.11% | 0.11% |
| One net population change |
2.96 minutes
|
2.85 minutes
|
| One birth every |
2.02 minutes
|
1.95 minutes
|
| One death every |
7.41 minutes
|
7.37 minutes
|
| Daily growth/decline | +487 | +507 |
| Annual growth/decline | +177,772 | +185,068 |
| Annual growth/decline rate | +2.06% | +2.2% |
| Population growth rate rank | 47/197 | 39/197 |
| One migration net change every |
46.6 minutes
|
35.1 minutes
|
| Annual migration change | -11,309 | -15,010 |
| Net migration rank | 136/196 | 144/196 |
| Foreign-born residents | 49,997 | 281,994 |
| Foreign-born residents rank | 151/195 | 99/195 |
| Foreign-born share of population | 0.6% | 3% |
| Foreign-born share rank | 174/195 | 117/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Sierra Leone
|
Togo
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -11,309 | - | -15,010 |
| 2024 | 189,234 | -11,000 | 198,184 | -14,014 |
| 2023 | 188,788 | -4,000 | 196,649 | -15,406 |
| 2022 | 186,625 | -4,000 | 195,051 | -65,826 |
| 2021 | 183,326 | -1,544 | 192,651 | -56,991 |
| 2020 | 181,015 | 1,292 | 192,474 | -31,892 |
| 2019 | 181,068 | -2,238 | 192,990 | -17,312 |
| 2018 | 178,772 | -2,741 | 191,482 | -43,718 |
| 2017 | 173,259 | 1,234 | 189,386 | -69,512 |
| 2016 | 168,784 | 4,657 | 187,007 | -59,885 |
| 2015 | 162,275 | -356 | 183,089 | -51,459 |
| 2014 | 160,137 | 485 | 179,671 | -43,591 |
| 2013 | 161,265 | 2,773 | 176,865 | -35,346 |
| 2012 | 160,915 | 988 | 176,051 | -27,315 |
| 2011 | 158,858 | 6,895 | 176,484 | -18,960 |
| 2010 | 155,338 | 7,983 | 175,800 | 16,265 |
| 2009 | 152,669 | 18,145 | 170,740 | 26,886 |
| 2008 | 149,855 | 1,182 | 164,627 | 27,362 |
| 2007 | 145,740 | -6,042 | 158,312 | 25,082 |
| 2006 | 144,127 | -34,052 | 150,821 | 23,346 |
| 2005 | 137,234 | -1,805 | 143,281 | -4,415 |
| 2004 | 132,661 | 23,897 | 136,802 | -11,998 |
| 2003 | 130,312 | 69,185 | 133,852 | -4,237 |
| 2002 | 126,429 | 86,578 | 130,283 | -5,939 |
| 2001 | 116,647 | 227,791 | 126,419 | -4,802 |
| 2000 | 110,754 | 83,013 | 122,712 | -3,485 |
| 1999 | 102,295 | -84,926 | 119,331 | -2,618 |
| 1998 | 103,906 | -76,766 | 116,918 | -5,394 |
| 1997 | 105,433 | -48,437 | 116,559 | -2,397 |
| 1996 | 104,140 | -52,110 | 111,887 | 69,276 |
| 1995 | 100,885 | -112,857 | 106,983 | 73,224 |
| 1994 | 101,486 | -77,371 | 100,045 | 132,276 |
| 1993 | 103,317 | -95,476 | 112,013 | -311,917 |
| 1992 | 103,251 | -129,565 | 110,828 | -132 |
| 1991 | 105,477 | -238,965 | 109,267 | -72 |
| 1990 | 100,778 | 131,587 | 107,985 | 59 |
| 1989 | 98,298 | -5,079 | 106,166 | 0 |
| 1988 | 96,344 | 9,470 | 104,605 | -29 |
| 1987 | 94,235 | 9,558 | 102,435 | 848 |
| 1986 | 90,902 | 7,992 | 99,698 | -436 |
| 1985 | 88,869 | -7,873 | 96,376 | 7,971 |
| 1984 | 87,072 | -8,708 | 95,195 | -21,949 |
| 1983 | 84,628 | -8,783 | 94,034 | -21,948 |
| 1982 | 82,457 | -11,379 | 92,715 | -21,958 |
| 1981 | 80,111 | -12,699 | 90,144 | 3,519 |
| 1980 | 77,932 | -11,641 | 87,404 | -4,993 |
| 1979 | 75,992 | -13,095 | 85,228 | -13,519 |
| 1978 | 74,130 | -13,073 | 83,151 | -19,163 |
| 1977 | 71,663 | -12,399 | 80,902 | -19,856 |
| 1976 | 69,506 | -15,686 | 78,770 | -18,832 |
| 1975 | 67,560 | -13,058 | 76,412 | -16,973 |
| 1974 | 65,357 | -11,473 | 74,055 | -14,483 |
| 1973 | 62,443 | -9,322 | 71,549 | -11,555 |
| 1972 | 60,279 | -8,267 | 68,966 | -7,661 |
| 1971 | 58,484 | -8,162 | 66,284 | 482 |
| 1970 | 56,513 | -4,957 | 63,057 | 10,865 |
| 1969 | 54,768 | -4,485 | 58,207 | 80,000 |
| 1968 | 53,126 | -3,743 | 56,082 | -14,504 |
| 1967 | 51,734 | -2,819 | 54,359 | -14,424 |
| 1966 | 49,486 | -2,911 | 52,832 | -14,216 |
| 1965 | 47,223 | -1,851 | 51,096 | -13,915 |
| 1964 | 45,487 | -2,308 | 49,450 | -14,266 |
| 1963 | 43,569 | -2,480 | 47,869 | -14,361 |
| 1962 | 41,603 | -2,658 | 46,201 | -15,486 |
| 1961 | 40,022 | -2,947 | 44,623 | -14,858 |
| 1960 | 38,192 | -3,528 | 43,307 | -13,868 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/sierra-leone/togo | CC BY
Over the last 10 years, 99% of the population change in Sierra Leone is from natural causes (a gain of 1,793,146 people) and 1.03% is from migration (a loss of 18,696 people). In Togo 81.8% is from natural causes (a gain of 1,918,963 people) and 18.2% is from migration (a loss of 426,015 people).
As of 2024, 49,997 residents or 0.6% of the population were not native-born in Sierra Leone, compared to 281,994 people or 3% in Togo.
Biggest cities by population
|
Sierra Leone
|
|
|---|---|
| City | Population |
| Freetown | 951K |
| Bo | 234K |
| Kenema | 188K |
|
Togo
|
|
|---|---|
| City | Population |
| Lome | 2.19M |
| Kara | 158K |
| Sokode | 115K |
| Atakpame | 98.2K |
| Kpalime | 87.5K |
| Sotouboua | 32.5K |
Compare countries by 7 more topics
Population differences between Sierra Leone and Togo
|
Sierra Leone
|
Togo
|
|
|---|---|---|
| Life expectancy | 62.3 years | 63.3 years |
| Average age | 24.6 years | 24.2 years |
| Median age | 20.7 years | 19.4 years |
| Male:Female ratio | 49.9:50.1 | 48.9:51.1 |
| Fertility rate | 3.7 births per woman | 4.12 births per woman |
| Population density | 323 ppl/mi² | 418 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/sierra-leone/togo | 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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