The latest officially reported population of Russia was 143,513,328 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current Russia's population is 142,643,173 people compared to 9,090,531 in Sierra Leone.
Population statistics:
- Russia's population is 15.7 times bigger than Sierra Leone's.
- Russia is ranked the 9th most populous country in the world, while Sierra Leone is the 100th.
- The countries together account for 1.83% of the world: 1.72% for Russia vs 0.11% for Sierra Leone.
- For the last 10 years, Russia has had an average growth rate of -0.05% per year vs +2.29% in Sierra Leone.
- Since 2006, the population of Russia has decreased from 143M people to 143M (0.28% decline), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).
Russia vs Sierra Leone: population by year and forecast
| Year | Population | |
|---|---|---|
Russia
|
Sierra Leone
|
|
| 2100 | 125,631,984 | 16,107,087 |
| 2099 | 125,735,285 | 16,121,940 |
| 2098 | 125,835,990 | 16,135,035 |
| 2097 | 125,914,480 | 16,149,905 |
| 2096 | 126,004,709 | 16,160,672 |
| 2095 | 126,072,890 | 16,169,304 |
| 2094 | 126,125,529 | 16,168,902 |
| 2093 | 126,181,074 | 16,173,609 |
| 2092 | 126,256,091 | 16,170,778 |
| 2091 | 126,304,823 | 16,163,901 |
| 2090 | 126,360,262 | 16,154,165 |
| 2089 | 126,412,664 | 16,142,526 |
| 2088 | 126,463,022 | 16,128,775 |
| 2087 | 126,511,263 | 16,112,585 |
| 2086 | 126,579,534 | 16,085,549 |
| 2085 | 126,655,806 | 16,064,212 |
| 2084 | 126,730,694 | 16,040,563 |
| 2083 | 126,805,713 | 16,006,923 |
| 2082 | 126,889,471 | 15,970,872 |
| 2081 | 126,973,300 | 15,930,880 |
| 2080 | 127,070,546 | 15,892,665 |
| 2079 | 127,191,346 | 15,850,728 |
| 2078 | 127,331,975 | 15,801,450 |
| 2077 | 127,489,152 | 15,750,408 |
| 2076 | 127,641,749 | 15,695,310 |
| 2075 | 127,825,235 | 15,635,345 |
| 2074 | 128,023,096 | 15,580,279 |
| 2073 | 128,238,922 | 15,512,655 |
| 2072 | 128,465,870 | 15,442,481 |
| 2071 | 128,745,681 | 15,370,747 |
| 2070 | 129,020,076 | 15,293,426 |
| 2069 | 129,309,803 | 15,212,664 |
| 2068 | 129,589,275 | 15,124,069 |
| 2067 | 129,873,991 | 15,028,190 |
| 2066 | 130,184,092 | 14,931,295 |
| 2065 | 130,515,828 | 14,833,794 |
| 2064 | 130,852,649 | 14,736,872 |
| 2063 | 131,199,458 | 14,638,180 |
| 2062 | 131,530,725 | 14,525,736 |
| 2061 | 131,881,030 | 14,420,068 |
| 2060 | 132,209,377 | 14,307,451 |
| 2059 | 132,568,882 | 14,194,972 |
| 2058 | 132,933,515 | 14,077,124 |
| 2057 | 133,272,997 | 13,957,197 |
| 2056 | 133,615,325 | 13,832,494 |
| 2055 | 133,963,055 | 13,702,508 |
| 2054 | 134,288,366 | 13,576,231 |
| 2053 | 134,609,198 | 13,440,929 |
| 2052 | 134,876,558 | 13,299,910 |
| 2051 | 135,141,211 | 13,152,910 |
| 2050 | 135,386,454 | 13,006,688 |
| 2049 | 135,609,441 | 12,863,637 |
| 2048 | 135,818,840 | 12,712,671 |
| 2047 | 136,013,698 | 12,566,944 |
| 2046 | 136,185,098 | 12,411,042 |
| 2045 | 136,368,416 | 12,254,651 |
| 2044 | 136,568,234 | 12,088,895 |
| 2043 | 136,791,498 | 11,928,393 |
| 2042 | 137,015,033 | 11,767,372 |
| 2041 | 137,266,491 | 11,599,942 |
| 2040 | 137,531,851 | 11,428,331 |
| 2039 | 137,833,822 | 11,259,845 |
| 2038 | 138,146,863 | 11,097,180 |
| 2037 | 138,485,780 | 10,928,754 |
| 2036 | 138,835,731 | 10,757,928 |
| 2035 | 139,197,452 | 10,582,918 |
| 2034 | 139,573,272 | 10,411,088 |
| 2033 | 139,960,175 | 10,238,503 |
| 2032 | 140,359,785 | 10,059,929 |
| 2031 | 140,785,026 | 9,881,109 |
| 2030 | 141,182,418 | 9,705,485 |
| 2029 | 141,571,268 | 9,529,493 |
| 2028 | 141,946,979 | 9,358,412 |
| 2027 | 142,315,155 | 9,177,288 |
| 2026 | 142,643,173 | 8,998,902 |
| 2025 | 143,513,328 | 8,819,794 |
| 2024 | 143,669,648 | 8,642,022 |
| 2023 | 143,826,130 | 8,460,512 |
| 2022 | 144,236,933 | 8,276,807 |
| 2021 | 144,746,762 | 8,094,602 |
| 2020 | 145,245,148 | 7,912,558 |
| 2019 | 145,453,291 | 7,731,991 |
| 2018 | 145,398,106 | 7,554,563 |
| 2017 | 145,293,260 | 7,379,299 |
| 2016 | 145,015,460 | 7,205,328 |
| 2015 | 144,640,716 | 7,037,655 |
| 2014 | 144,237,223 | 6,876,385 |
| 2013 | 143,805,638 | 6,714,051 |
| 2012 | 143,378,447 | 6,551,080 |
| 2011 | 143,018,195 | 6,387,251 |
| 2010 | 142,849,468 | 6,222,714 |
| 2009 | 142,785,348 | 6,055,646 |
| 2008 | 142,742,366 | 5,894,722 |
| 2007 | 142,805,114 | 5,749,352 |
| 2006 | 143,049,637 | 5,624,466 |
| 2005 | 143,518,814 | 5,501,712 |
| 2004 | 144,067,316 | 5,355,717 |
| 2003 | 144,648,618 | 5,177,687 |
| 2002 | 145,306,497 | 4,971,435 |
| 2001 | 145,976,482 | 4,692,716 |
| 2000 | 146,596,869 | 4,423,611 |
| 1999 | 147,214,776 | 4,318,043 |
| 1998 | 147,670,784 | 4,295,785 |
| 1997 | 147,915,361 | 4,253,716 |
| 1996 | 148,160,129 | 4,199,210 |
| 1995 | 148,375,787 | 4,179,179 |
| 1994 | 148,407,912 | 4,173,105 |
| 1993 | 148,458,777 | 4,157,130 |
| 1992 | 148,538,197 | 4,166,366 |
| 1991 | 148,394,216 | 4,246,267 |
| 1990 | 147,969,406 | 4,196,828 |
| 1989 | 147,721,000 | 4,034,037 |
| 1988 | 146,857,000 | 3,934,517 |
| 1987 | 145,908,000 | 3,829,718 |
| 1986 | 144,894,000 | 3,728,380 |
| 1985 | 143,858,000 | 3,638,438 |
| 1984 | 142,745,000 | 3,558,758 |
| 1983 | 141,668,000 | 3,481,646 |
| 1982 | 140,823,000 | 3,408,183 |
| 1981 | 139,941,000 | 3,338,940 |
| 1980 | 139,010,000 | 3,272,089 |
| 1979 | 138,027,000 | 3,207,499 |
| 1978 | 137,060,000 | 3,145,517 |
| 1977 | 136,100,000 | 3,085,354 |
| 1976 | 135,147,000 | 3,028,820 |
| 1975 | 134,200,000 | 2,974,657 |
| 1974 | 133,432,000 | 2,920,459 |
| 1973 | 132,669,000 | 2,866,955 |
| 1972 | 131,909,000 | 2,814,388 |
| 1971 | 131,155,000 | 2,763,222 |
| 1970 | 130,404,000 | 2,712,286 |
| 1969 | 129,664,000 | 2,661,365 |
| 1968 | 128,928,000 | 2,611,532 |
| 1967 | 128,196,000 | 2,562,384 |
| 1966 | 127,468,000 | 2,514,638 |
| 1965 | 126,745,000 | 2,468,666 |
| 1964 | 125,345,000 | 2,424,390 |
| 1963 | 123,960,000 | 2,382,258 |
| 1962 | 122,591,000 | 2,342,242 |
| 1961 | 121,236,000 | 2,304,227 |
| 1960 | 119,897,000 | 2,268,356 |
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/russia/sierra-leone | CC BY 
From 2006 to 2016, the population of Russia increased by 1,965,823 people (a 1.37% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).
For the next 10 years, from 2016 to 2026, Russia lost 2,372,287 people (a 1.64% decline), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).
Russia was ranked 9th most populous country in 2006 and is still 9th in 2026. Sierra Leone was ranked 105th in 2006 and ranked 100th now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Russia's population will shrink by 5.09% to 135,386,454 people with a rank change from 9th to 13th. The population of Sierra Leone will increase by 43.1% to 13,006,688 people and rank change from 100th to 91st.
Sierra Leone is projected to reach its peak in 2093 at 16.2M people, while Russia's population already peaked in 1992 at 149M people and is projected to decrease to 126M people by 2100.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
Russia
|
Sierra Leone
|
|
| 2100 | -0.08% | -0.09% |
| 2099 | -0.08% | -0.08% |
| 2098 | -0.06% | -0.09% |
| 2097 | -0.07% | -0.07% |
| 2096 | -0.05% | -0.05% |
| 2095 | -0.04% | 0.002% |
| 2094 | -0.04% | -0.03% |
| 2093 | -0.06% | 0.02% |
| 2092 | -0.04% | 0.04% |
| 2091 | -0.04% | 0.06% |
| 2090 | -0.04% | 0.07% |
| 2089 | -0.04% | 0.09% |
| 2088 | -0.04% | 0.1% |
| 2087 | -0.05% | 0.17% |
| 2086 | -0.06% | 0.13% |
| 2085 | -0.06% | 0.15% |
| 2084 | -0.06% | 0.21% |
| 2083 | -0.07% | 0.23% |
| 2082 | -0.07% | 0.25% |
| 2081 | -0.08% | 0.24% |
| 2080 | -0.09% | 0.26% |
| 2079 | -0.11% | 0.31% |
| 2078 | -0.12% | 0.32% |
| 2077 | -0.12% | 0.35% |
| 2076 | -0.14% | 0.38% |
| 2075 | -0.15% | 0.35% |
| 2074 | -0.17% | 0.44% |
| 2073 | -0.18% | 0.45% |
| 2072 | -0.22% | 0.47% |
| 2071 | -0.21% | 0.51% |
| 2070 | -0.22% | 0.53% |
| 2069 | -0.22% | 0.59% |
| 2068 | -0.22% | 0.64% |
| 2067 | -0.24% | 0.65% |
| 2066 | -0.25% | 0.66% |
| 2065 | -0.26% | 0.66% |
| 2064 | -0.26% | 0.67% |
| 2063 | -0.25% | 0.77% |
| 2062 | -0.27% | 0.73% |
| 2061 | -0.25% | 0.79% |
| 2060 | -0.27% | 0.79% |
| 2059 | -0.27% | 0.84% |
| 2058 | -0.25% | 0.86% |
| 2057 | -0.26% | 0.9% |
| 2056 | -0.26% | 0.95% |
| 2055 | -0.24% | 0.93% |
| 2054 | -0.24% | 1.01% |
| 2053 | -0.2% | 1.06% |
| 2052 | -0.2% | 1.12% |
| 2051 | -0.18% | 1.12% |
| 2050 | -0.16% | 1.11% |
| 2049 | -0.15% | 1.19% |
| 2048 | -0.14% | 1.16% |
| 2047 | -0.13% | 1.26% |
| 2046 | -0.13% | 1.28% |
| 2045 | -0.15% | 1.37% |
| 2044 | -0.16% | 1.35% |
| 2043 | -0.16% | 1.37% |
| 2042 | -0.18% | 1.44% |
| 2041 | -0.19% | 1.5% |
| 2040 | -0.22% | 1.5% |
| 2039 | -0.23% | 1.47% |
| 2038 | -0.24% | 1.54% |
| 2037 | -0.25% | 1.59% |
| 2036 | -0.26% | 1.65% |
| 2035 | -0.27% | 1.65% |
| 2034 | -0.28% | 1.69% |
| 2033 | -0.28% | 1.78% |
| 2032 | -0.3% | 1.81% |
| 2031 | -0.28% | 1.81% |
| 2030 | -0.27% | 1.85% |
| 2029 | -0.26% | 1.83% |
| 2028 | -0.26% | 1.97% |
| 2027 | -0.23% | 1.98% |
| 2026 | -0.61% | 2.03% |
| 2025 | -0.11% | 2.06% |
| 2024 | -0.11% | 2.15% |
| 2023 | -0.28% | 2.22% |
| 2022 | -0.35% | 2.25% |
| 2021 | -0.34% | 2.3% |
| 2020 | -0.14% | 2.34% |
| 2019 | 0.04% | 2.35% |
| 2018 | 0.07% | 2.38% |
| 2017 | 0.19% | 2.41% |
| 2016 | 0.26% | 2.38% |
| 2015 | 0.28% | 2.35% |
| 2014 | 0.3% | 2.42% |
| 2013 | 0.3% | 2.49% |
| 2012 | 0.25% | 2.56% |
| 2011 | 0.12% | 2.64% |
| 2010 | 0.04% | 2.76% |
| 2009 | 0.03% | 2.73% |
| 2008 | -0.04% | 2.53% |
| 2007 | -0.17% | 2.22% |
| 2006 | -0.33% | 2.23% |
| 2005 | -0.38% | 2.73% |
| 2004 | -0.4% | 3.44% |
| 2003 | -0.45% | 4.15% |
| 2002 | -0.46% | 5.94% |
| 2001 | -0.42% | 6.08% |
| 2000 | -0.42% | 2.44% |
| 1999 | -0.31% | 0.52% |
| 1998 | -0.17% | 0.99% |
| 1997 | -0.17% | 1.3% |
| 1996 | -0.15% | 0.48% |
| 1995 | -0.02% | 0.15% |
| 1994 | -0.03% | 0.38% |
| 1993 | -0.05% | -0.22% |
| 1992 | 0.1% | -1.88% |
| 1991 | 0.29% | 1.18% |
| 1990 | 0.17% | 4.04% |
| 1989 | 0.59% | 2.53% |
| 1988 | 0.65% | 2.74% |
| 1987 | 0.7% | 2.72% |
| 1986 | 0.72% | 2.47% |
| 1985 | 0.78% | 2.24% |
| 1984 | 0.76% | 2.21% |
| 1983 | 0.6% | 2.16% |
| 1982 | 0.63% | 2.07% |
| 1981 | 0.67% | 2.04% |
| 1980 | 0.71% | 2.01% |
| 1979 | 0.71% | 1.97% |
| 1978 | 0.71% | 1.95% |
| 1977 | 0.71% | 1.87% |
| 1976 | 0.71% | 1.82% |
| 1975 | 0.58% | 1.86% |
| 1974 | 0.58% | 1.87% |
| 1973 | 0.58% | 1.87% |
| 1972 | 0.57% | 1.85% |
| 1971 | 0.58% | 1.88% |
| 1970 | 0.57% | 1.91% |
| 1969 | 0.57% | 1.91% |
| 1968 | 0.57% | 1.92% |
| 1967 | 0.57% | 1.9% |
| 1966 | 0.57% | 1.86% |
| 1965 | 1.12% | 1.83% |
| 1964 | 1.12% | 1.77% |
| 1963 | 1.12% | 1.71% |
| 1962 | 1.12% | 1.65% |
| 1961 | 1.12% | 1.58% |
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/russia/sierra-leone | CC BY
In 2025, the population of Russia declined by 0.11%, while Sierra Leone's population grew by 2.06%.
Live population counters
|
Russia
|
Sierra Leone
|
|
|---|---|---|
| Current population |
142643173
|
9090531
|
| Population rank | 9/197 | 100/197 |
| Percent of world population | 1.72% | 0.11% |
| One net population change |
3.37 minutes
|
2.96 minutes
|
| One birth every |
26.1 seconds
|
2.02 minutes
|
| One death every |
17.7 seconds
|
7.41 minutes
|
| Daily growth/decline | -428 | +487 |
| Annual growth/decline | -156,320 | +177,772 |
| Annual growth/decline rate | -0.11% | +2.06% |
| Population growth rate rank | 166/197 | 47/197 |
| One migration net change every |
2.09 minutes
|
46.6 minutes
|
| Annual migration change | -251,822 | -11,309 |
| Net migration rank | 187/196 | 136/196 |
| Foreign-born residents | 7,605,774 | 49,997 |
| Foreign-born residents rank | 10/195 | 151/195 |
| Foreign-born share of population | 5.3% | 0.6% |
| Foreign-born share rank | 91/195 | 174/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Russia
|
Sierra Leone
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -251,822 | - | -11,309 |
| 2024 | -574,678 | -178,042 | 189,234 | -11,000 |
| 2023 | -503,392 | 27,807 | 188,788 | -4,000 |
| 2022 | -576,948 | 765,629 | 186,625 | -4,000 |
| 2021 | -1,027,702 | 314,112 | 183,326 | -1,544 |
| 2020 | -697,177 | 334,094 | 181,015 | 1,292 |
| 2019 | -319,997 | 336,494 | 181,068 | -2,238 |
| 2018 | -232,637 | 339,972 | 178,772 | -2,741 |
| 2017 | -130,764 | 396,619 | 173,259 | 1,234 |
| 2016 | 0 | 447,645 | 168,784 | 4,657 |
| 2015 | 43,392 | 384,756 | 162,275 | -356 |
| 2014 | 28,848 | 264,698 | 160,137 | 485 |
| 2013 | 28,761 | 289,872 | 161,265 | 2,773 |
| 2012 | 0 | 285,977 | 160,915 | 988 |
| 2011 | -128,716 | 309,377 | 158,858 | 6,895 |
| 2010 | -242,844 | 307,555 | 155,338 | 7,983 |
| 2009 | -257,014 | 350,206 | 152,669 | 18,145 |
| 2008 | -356,856 | 360,840 | 149,855 | 1,182 |
| 2007 | -471,257 | 365,717 | 145,740 | -6,042 |
| 2006 | -686,638 | 308,370 | 144,127 | -34,052 |
| 2005 | -846,761 | 263,541 | 137,234 | -1,805 |
| 2004 | -792,370 | 261,519 | 132,661 | 23,897 |
| 2003 | -896,822 | 256,804 | 130,312 | 69,185 |
| 2002 | -944,492 | 1,358,944 | 126,429 | 86,578 |
| 2001 | -963,445 | 259,614 | 116,647 | 227,791 |
| 2000 | -967,540 | 550,401 | 110,754 | 83,013 |
| 1999 | -927,453 | 375,468 | 102,295 | -84,926 |
| 1998 | -694,053 | 528,135 | 103,906 | -76,766 |
| 1997 | -769,159 | 541,387 | 105,433 | -48,437 |
| 1996 | -785,248 | 587,171 | 104,140 | -52,110 |
| 1995 | -845,742 | 723,875 | 100,885 | -112,857 |
| 1994 | -920,129 | 1,271,417 | 101,486 | -77,371 |
| 1993 | -757,140 | 507,229 | 103,317 | -95,476 |
| 1992 | -222,808 | -1,129,589 | 103,251 | -129,565 |
| 1991 | 103,876 | 125,505 | 105,477 | -238,965 |
| 1990 | 325,533 | 299,863 | 100,778 | 131,587 |
| 1989 | 576,112 | 89,400 | 98,298 | -5,079 |
| 1988 | 778,343 | 269,862 | 96,344 | 9,470 |
| 1987 | 977,583 | 275,611 | 94,235 | 9,558 |
| 1986 | 985,279 | 283,553 | 90,902 | 7,992 |
| 1985 | 762,447 | 280,614 | 88,869 | -7,873 |
| 1984 | 756,548 | 247,026 | 87,072 | -8,708 |
| 1983 | 906,676 | 200,159 | 84,628 | -8,783 |
| 1982 | 830,855 | 107,520 | 82,457 | -11,379 |
| 1981 | 713,700 | 36,686 | 80,111 | -12,699 |
| 1980 | 681,149 | 10,440 | 77,932 | -11,641 |
| 1979 | 690,135 | -5,791 | 75,992 | -13,095 |
| 1978 | 812,766 | 108,882 | 74,130 | -13,073 |
| 1977 | 832,932 | 122,316 | 71,663 | -12,399 |
| 1976 | 852,237 | 113,851 | 69,506 | -15,686 |
| 1975 | 843,850 | 80,069 | 67,560 | -13,058 |
| 1974 | 883,186 | -51,759 | 65,357 | -11,473 |
| 1973 | 846,561 | -107,568 | 62,443 | -9,322 |
| 1972 | 872,050 | -111,168 | 60,279 | -8,267 |
| 1971 | 854,999 | -134,968 | 58,484 | -8,162 |
| 1970 | 785,554 | -264,464 | 56,513 | -4,957 |
| 1969 | 753,088 | -64,643 | 54,768 | -4,485 |
| 1968 | 787,621 | -83,221 | 53,126 | -3,743 |
| 1967 | 854,554 | -116,029 | 51,734 | -2,819 |
| 1966 | 989,279 | -111,360 | 49,486 | -2,911 |
| 1965 | 1,059,335 | -138,078 | 47,223 | -1,851 |
| 1964 | 1,233,520 | -148,595 | 45,487 | -2,308 |
| 1963 | 1,436,077 | -168,649 | 43,569 | -2,480 |
| 1962 | 1,573,701 | -177,358 | 41,603 | -2,658 |
| 1961 | 1,810,538 | -204,349 | 40,022 | -2,947 |
| 1960 | 1,962,834 | -234,895 | 38,192 | -3,528 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/russia/sierra-leone | CC BY
Over the last 10 years, 55.9% of the population change in Russia is from natural causes (a loss of 4,019,903 people) and 44.1% is from migration (a gain of 3,169,086 people). In Sierra Leone 99% is from natural causes (a gain of 1,793,146 people) and 1.03% is from migration (a loss of 18,696 people).
As of 2024, 7,605,774 residents or 5.3% of the population were not native-born in Russia, compared to 49,997 people or 0.6% in Sierra Leone.
Biggest cities by population
|
Russia
|
|
|---|---|
| City | Population |
| Moscow | 13.3M |
| Saint Petersburg | 5.65M |
| Novosibirsk | 1.64M |
| Yekaterinburg | 1.47M |
| Kazan | 1.33M |
| Nizhny Novgorod | 1.2M |
| Chelyabinsk | 1.18M |
| Krasnodar | 1.15M |
| Samara | 1.15M |
| Ufa | 1.14M |
|
Sierra Leone
|
|
|---|---|
| City | Population |
| Freetown | 951K |
| Bo | 234K |
| Kenema | 188K |
Compare countries by 7 more topics
Population differences between Russia and Sierra Leone
|
Russia
|
Sierra Leone
|
|
|---|---|---|
| Life expectancy | 73.7 years | 62.3 years |
| Average age | 41.1 years | 24.6 years |
| Median age | 41.4 years | 20.7 years |
| Male:Female ratio | 46.4:53.6 | 49.9:50.1 |
| Fertility rate | 1.42 births per woman | 3.7 births per woman |
| Population density | 22.6 ppl/mi² | 323 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/russia/sierra-leone | 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)
Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.