The latest officially reported population of Sierra Leone was 8,642,022 in 2024 vs 2,127,400 people in Slovenia in 2024. In 2026, based on the adjusted UN estimation, the current Sierra Leone's population is 9,049,533 people compared to 2,124,138 in Slovenia.
Population statistics:
- Sierra Leone's population is 4.26 times bigger than Slovenia's.
- Sierra Leone is ranked the 101st most populous country in the world, while Slovenia is the 147th.
- The countries together account for 0.13% of the world: 0.11% for Sierra Leone vs 0.03% for Slovenia.
- For the last 10 years, Sierra Leone has had an average growth rate of +2.32% per year vs +0.29% in Slovenia.
- Since 2006, the population of Sierra Leone has increased from 5.62M people to 9.05M (60.9% growth), while Slovenia has grown from 2.01M to 2.12M (5.84% growth).
Sierra Leone vs Slovenia: population by year and forecast
| Year | Population | |
|---|---|---|
Sierra Leone
|
Slovenia
|
|
| 2100 | 16,111,324 | 1,640,541 |
| 2099 | 16,126,181 | 1,644,752 |
| 2098 | 16,139,280 | 1,648,834 |
| 2097 | 16,154,153 | 1,653,196 |
| 2096 | 16,164,923 | 1,657,434 |
| 2095 | 16,173,557 | 1,661,656 |
| 2094 | 16,173,155 | 1,665,825 |
| 2093 | 16,177,864 | 1,670,076 |
| 2092 | 16,175,032 | 1,674,280 |
| 2091 | 16,168,153 | 1,678,462 |
| 2090 | 16,158,415 | 1,682,998 |
| 2089 | 16,146,773 | 1,687,376 |
| 2088 | 16,133,018 | 1,691,788 |
| 2087 | 16,116,823 | 1,696,409 |
| 2086 | 16,089,780 | 1,701,325 |
| 2085 | 16,068,438 | 1,706,189 |
| 2084 | 16,044,782 | 1,711,157 |
| 2083 | 16,011,134 | 1,716,396 |
| 2082 | 15,975,073 | 1,721,709 |
| 2081 | 15,935,071 | 1,727,302 |
| 2080 | 15,896,846 | 1,733,405 |
| 2079 | 15,854,898 | 1,739,518 |
| 2078 | 15,805,607 | 1,746,152 |
| 2077 | 15,754,551 | 1,752,783 |
| 2076 | 15,699,439 | 1,759,639 |
| 2075 | 15,639,458 | 1,766,867 |
| 2074 | 15,584,377 | 1,774,528 |
| 2073 | 15,516,736 | 1,782,697 |
| 2072 | 15,446,543 | 1,790,658 |
| 2071 | 15,374,790 | 1,798,960 |
| 2070 | 15,297,449 | 1,807,483 |
| 2069 | 15,216,666 | 1,816,607 |
| 2068 | 15,128,048 | 1,825,849 |
| 2067 | 15,032,144 | 1,834,865 |
| 2066 | 14,935,222 | 1,844,034 |
| 2065 | 14,837,697 | 1,853,651 |
| 2064 | 14,740,749 | 1,863,550 |
| 2063 | 14,642,031 | 1,873,173 |
| 2062 | 14,529,557 | 1,882,832 |
| 2061 | 14,423,861 | 1,892,739 |
| 2060 | 14,311,215 | 1,902,939 |
| 2059 | 14,198,706 | 1,912,861 |
| 2058 | 14,080,827 | 1,922,175 |
| 2057 | 13,960,869 | 1,932,119 |
| 2056 | 13,836,132 | 1,941,469 |
| 2055 | 13,706,113 | 1,950,861 |
| 2054 | 13,579,802 | 1,959,953 |
| 2053 | 13,444,465 | 1,968,641 |
| 2052 | 13,303,409 | 1,977,227 |
| 2051 | 13,156,370 | 1,985,279 |
| 2050 | 13,010,109 | 1,993,115 |
| 2049 | 12,867,021 | 2,000,477 |
| 2048 | 12,716,015 | 2,007,283 |
| 2047 | 12,570,250 | 2,014,140 |
| 2046 | 12,414,307 | 2,020,756 |
| 2045 | 12,257,874 | 2,027,366 |
| 2044 | 12,092,075 | 2,033,871 |
| 2043 | 11,931,531 | 2,040,173 |
| 2042 | 11,770,467 | 2,046,339 |
| 2041 | 11,602,993 | 2,052,041 |
| 2040 | 11,431,337 | 2,057,278 |
| 2039 | 11,262,807 | 2,062,718 |
| 2038 | 11,100,099 | 2,067,922 |
| 2037 | 10,931,629 | 2,073,705 |
| 2036 | 10,760,758 | 2,079,201 |
| 2035 | 10,585,702 | 2,084,471 |
| 2034 | 10,413,826 | 2,089,430 |
| 2033 | 10,241,196 | 2,094,601 |
| 2032 | 10,062,575 | 2,099,622 |
| 2031 | 9,883,708 | 2,104,690 |
| 2030 | 9,708,038 | 2,109,416 |
| 2029 | 9,532,000 | 2,113,874 |
| 2028 | 9,360,873 | 2,118,053 |
| 2027 | 9,179,702 | 2,121,324 |
| 2026 | 9,001,269 | 2,124,138 |
| 2025 | 8,822,114 | 2,126,340 |
| 2024 | 8,642,022 | 2,127,400 |
| 2023 | 8,460,512 | 2,120,461 |
| 2022 | 8,276,807 | 2,112,076 |
| 2021 | 8,094,602 | 2,108,079 |
| 2020 | 7,912,558 | 2,102,419 |
| 2019 | 7,731,991 | 2,088,385 |
| 2018 | 7,554,563 | 2,073,894 |
| 2017 | 7,379,299 | 2,066,388 |
| 2016 | 7,205,328 | 2,065,042 |
| 2015 | 7,037,655 | 2,063,531 |
| 2014 | 6,876,385 | 2,061,980 |
| 2013 | 6,714,051 | 2,059,953 |
| 2012 | 6,551,080 | 2,057,159 |
| 2011 | 6,387,251 | 2,052,843 |
| 2010 | 6,222,714 | 2,048,583 |
| 2009 | 6,055,646 | 2,039,669 |
| 2008 | 5,894,722 | 2,021,316 |
| 2007 | 5,749,352 | 2,018,122 |
| 2006 | 5,624,466 | 2,006,868 |
| 2005 | 5,501,712 | 2,000,474 |
| 2004 | 5,355,717 | 1,997,012 |
| 2003 | 5,177,687 | 1,995,733 |
| 2002 | 4,971,435 | 1,994,530 |
| 2001 | 4,692,716 | 1,992,060 |
| 2000 | 4,423,611 | 1,988,925 |
| 1999 | 4,318,043 | 1,983,045 |
| 1998 | 4,295,785 | 1,981,629 |
| 1997 | 4,253,716 | 1,985,956 |
| 1996 | 4,199,210 | 1,988,628 |
| 1995 | 4,179,179 | 1,989,872 |
| 1994 | 4,173,105 | 1,989,443 |
| 1993 | 4,157,130 | 1,991,746 |
| 1992 | 4,166,366 | 1,996,498 |
| 1991 | 4,246,267 | 1,999,429 |
| 1990 | 4,196,828 | 1,998,161 |
| 1989 | 4,034,037 | 1,996,351 |
| 1988 | 3,934,517 | 1,995,196 |
| 1987 | 3,829,718 | 1,989,776 |
| 1986 | 3,728,380 | 1,965,964 |
| 1985 | 3,638,438 | 1,941,641 |
| 1984 | 3,558,758 | 1,932,154 |
| 1983 | 3,481,646 | 1,922,321 |
| 1982 | 3,408,183 | 1,910,334 |
| 1981 | 3,338,940 | 1,906,531 |
| 1980 | 3,272,089 | 1,901,315 |
| 1979 | 3,207,499 | 1,882,599 |
| 1978 | 3,145,517 | 1,862,548 |
| 1977 | 3,085,354 | 1,842,377 |
| 1976 | 3,028,820 | 1,820,249 |
| 1975 | 2,974,657 | 1,793,581 |
| 1974 | 2,920,459 | 1,776,132 |
| 1973 | 2,866,955 | 1,766,697 |
| 1972 | 2,814,388 | 1,752,233 |
| 1971 | 2,763,222 | 1,738,335 |
| 1970 | 2,712,286 | 1,724,891 |
| 1969 | 2,661,365 | 1,713,874 |
| 1968 | 2,611,532 | 1,704,546 |
| 1967 | 2,562,384 | 1,689,528 |
| 1966 | 2,514,638 | 1,669,905 |
| 1965 | 2,468,666 | 1,649,160 |
| 1964 | 2,424,390 | 1,632,114 |
| 1963 | 2,382,258 | 1,616,971 |
| 1962 | 2,342,242 | 1,603,649 |
| 1961 | 2,304,227 | 1,594,131 |
| 1960 | 2,268,356 | 1,584,720 |
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/sierra-leone/slovenia | CC BY 
From 2006 to 2016, the population of Sierra Leone increased by 1,580,862 people (a 28.1% growth), while Slovenia gained 58,174 people (a 2.9% growth).
For the next 10 years, from 2016 to 2026, Sierra Leone gained 1,844,205 people (a 25.6% growth), while Slovenia's population increased by 59,096 people (a 2.86% growth).
Sierra Leone was ranked 106th most populous country in 2006 and is 101st in 2026. Slovenia was ranked 141st in 2006 and ranked 147th now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Sierra Leone's population will grow by 43.8% to 13,010,109 people with a rank change from 101st to 91st. The population of Slovenia will decrease by 6.17% to 1,993,115 people and will still be ranked 147th.
Sierra Leone is projected to reach its peak in 2093 at 16.2M people, while Slovenia's population already peaked in 2024 at 2.13M people and is projected to decrease to 1.64M people by 2100.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
Sierra Leone
|
Slovenia
|
|
| 2100 | -0.09% | -0.26% |
| 2099 | -0.08% | -0.25% |
| 2098 | -0.09% | -0.26% |
| 2097 | -0.07% | -0.26% |
| 2096 | -0.05% | -0.25% |
| 2095 | 0.002% | -0.25% |
| 2094 | -0.03% | -0.25% |
| 2093 | 0.02% | -0.25% |
| 2092 | 0.04% | -0.25% |
| 2091 | 0.06% | -0.27% |
| 2090 | 0.07% | -0.26% |
| 2089 | 0.09% | -0.26% |
| 2088 | 0.1% | -0.27% |
| 2087 | 0.17% | -0.29% |
| 2086 | 0.13% | -0.29% |
| 2085 | 0.15% | -0.29% |
| 2084 | 0.21% | -0.31% |
| 2083 | 0.23% | -0.31% |
| 2082 | 0.25% | -0.32% |
| 2081 | 0.24% | -0.35% |
| 2080 | 0.26% | -0.35% |
| 2079 | 0.31% | -0.38% |
| 2078 | 0.32% | -0.38% |
| 2077 | 0.35% | -0.39% |
| 2076 | 0.38% | -0.41% |
| 2075 | 0.35% | -0.43% |
| 2074 | 0.44% | -0.46% |
| 2073 | 0.45% | -0.44% |
| 2072 | 0.47% | -0.46% |
| 2071 | 0.51% | -0.47% |
| 2070 | 0.53% | -0.5% |
| 2069 | 0.59% | -0.51% |
| 2068 | 0.64% | -0.49% |
| 2067 | 0.65% | -0.5% |
| 2066 | 0.66% | -0.52% |
| 2065 | 0.66% | -0.53% |
| 2064 | 0.67% | -0.51% |
| 2063 | 0.77% | -0.51% |
| 2062 | 0.73% | -0.52% |
| 2061 | 0.79% | -0.54% |
| 2060 | 0.79% | -0.52% |
| 2059 | 0.84% | -0.48% |
| 2058 | 0.86% | -0.51% |
| 2057 | 0.9% | -0.48% |
| 2056 | 0.95% | -0.48% |
| 2055 | 0.93% | -0.46% |
| 2054 | 1.01% | -0.44% |
| 2053 | 1.06% | -0.43% |
| 2052 | 1.12% | -0.41% |
| 2051 | 1.12% | -0.39% |
| 2050 | 1.11% | -0.37% |
| 2049 | 1.19% | -0.34% |
| 2048 | 1.16% | -0.34% |
| 2047 | 1.26% | -0.33% |
| 2046 | 1.28% | -0.33% |
| 2045 | 1.37% | -0.32% |
| 2044 | 1.35% | -0.31% |
| 2043 | 1.37% | -0.3% |
| 2042 | 1.44% | -0.28% |
| 2041 | 1.5% | -0.25% |
| 2040 | 1.5% | -0.26% |
| 2039 | 1.47% | -0.25% |
| 2038 | 1.54% | -0.28% |
| 2037 | 1.59% | -0.26% |
| 2036 | 1.65% | -0.25% |
| 2035 | 1.65% | -0.24% |
| 2034 | 1.69% | -0.25% |
| 2033 | 1.78% | -0.24% |
| 2032 | 1.81% | -0.24% |
| 2031 | 1.81% | -0.22% |
| 2030 | 1.85% | -0.21% |
| 2029 | 1.83% | -0.2% |
| 2028 | 1.97% | -0.15% |
| 2027 | 1.98% | -0.13% |
| 2026 | 2.03% | -0.1% |
| 2025 | 2.08% | -0.05% |
| 2024 | 2.15% | 0.33% |
| 2023 | 2.22% | 0.4% |
| 2022 | 2.25% | 0.19% |
| 2021 | 2.3% | 0.27% |
| 2020 | 2.34% | 0.67% |
| 2019 | 2.35% | 0.7% |
| 2018 | 2.38% | 0.36% |
| 2017 | 2.41% | 0.07% |
| 2016 | 2.38% | 0.07% |
| 2015 | 2.35% | 0.08% |
| 2014 | 2.42% | 0.1% |
| 2013 | 2.49% | 0.14% |
| 2012 | 2.56% | 0.21% |
| 2011 | 2.64% | 0.21% |
| 2010 | 2.76% | 0.44% |
| 2009 | 2.73% | 0.91% |
| 2008 | 2.53% | 0.16% |
| 2007 | 2.22% | 0.56% |
| 2006 | 2.23% | 0.32% |
| 2005 | 2.73% | 0.17% |
| 2004 | 3.44% | 0.06% |
| 2003 | 4.15% | 0.06% |
| 2002 | 5.94% | 0.12% |
| 2001 | 6.08% | 0.16% |
| 2000 | 2.44% | 0.3% |
| 1999 | 0.52% | 0.07% |
| 1998 | 0.99% | -0.22% |
| 1997 | 1.3% | -0.13% |
| 1996 | 0.48% | -0.06% |
| 1995 | 0.15% | 0.02% |
| 1994 | 0.38% | -0.12% |
| 1993 | -0.22% | -0.24% |
| 1992 | -1.88% | -0.15% |
| 1991 | 1.18% | 0.06% |
| 1990 | 4.04% | 0.09% |
| 1989 | 2.53% | 0.06% |
| 1988 | 2.74% | 0.27% |
| 1987 | 2.72% | 1.21% |
| 1986 | 2.47% | 1.25% |
| 1985 | 2.24% | 0.49% |
| 1984 | 2.21% | 0.51% |
| 1983 | 2.16% | 0.63% |
| 1982 | 2.07% | 0.2% |
| 1981 | 2.04% | 0.27% |
| 1980 | 2.01% | 0.99% |
| 1979 | 1.97% | 1.08% |
| 1978 | 1.95% | 1.09% |
| 1977 | 1.87% | 1.22% |
| 1976 | 1.82% | 1.49% |
| 1975 | 1.86% | 0.98% |
| 1974 | 1.87% | 0.53% |
| 1973 | 1.87% | 0.83% |
| 1972 | 1.85% | 0.8% |
| 1971 | 1.88% | 0.78% |
| 1970 | 1.91% | 0.64% |
| 1969 | 1.91% | 0.55% |
| 1968 | 1.92% | 0.89% |
| 1967 | 1.9% | 1.18% |
| 1966 | 1.86% | 1.26% |
| 1965 | 1.83% | 1.04% |
| 1964 | 1.77% | 0.94% |
| 1963 | 1.71% | 0.83% |
| 1962 | 1.65% | 0.6% |
| 1961 | 1.58% | 0.59% |
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/sierra-leone/slovenia | CC BY
In 2024, the population of Sierra Leone grew by 2.15%, while Slovenia's population grew by 0.33%.
Live population counters
|
Sierra Leone
|
Slovenia
|
|
|---|---|---|
| Current population |
9049533
|
2124138
|
| Population rank | 101/197 | 147/197 |
| Percent of world population | 0.11% | 0.03% |
| One net population change |
2.9 minutes
|
1.26 hours
|
| One birth every |
2.03 minutes
|
31 minutes
|
| One death every |
7.5 minutes
|
24.3 minutes
|
| Daily growth/decline | +497 | +19 |
| Annual growth/decline | +181,510 | +6,939 |
| Annual growth/decline rate | +2.15% | +0.33% |
| Population growth rate rank | 47/197 | 148/197 |
| One migration net change every |
46.6 minutes
|
3.24 hours
|
| Annual migration change | -11,309 | +2,711 |
| Net migration rank | 136/196 | 55/196 |
| Foreign-born residents | 49,997 | 315,122 |
| Foreign-born residents rank | 151/195 | 97/195 |
| Foreign-born share of population | 0.6% | 14.9% |
| Foreign-born share rank | 174/195 | 44/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Sierra Leone
|
Slovenia
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -11,309 | - | 2,711 |
| 2024 | - | -11,000 | - | 3,319 |
| 2023 | 188,788 | -4,000 | -4,665 | 5,339 |
| 2022 | 186,625 | -4,000 | -4,858 | 9,014 |
| 2021 | 183,326 | -1,544 | -4,216 | 2,477 |
| 2020 | 181,015 | 1,292 | -5,256 | 28,514 |
| 2019 | 181,068 | -2,238 | -1,254 | 16,352 |
| 2018 | 178,772 | -2,741 | -1,037 | 14,640 |
| 2017 | 173,259 | 1,234 | -207 | 1,359 |
| 2016 | 168,784 | 4,657 | 826 | 1,195 |
| 2015 | 162,275 | -356 | 826 | 712 |
| 2014 | 160,137 | 485 | 2,268 | -70 |
| 2013 | 161,265 | 2,773 | 1,648 | 639 |
| 2012 | 160,915 | 988 | 2,674 | 1,117 |
| 2011 | 158,858 | 6,895 | 3,285 | 2,190 |
| 2010 | 155,338 | 7,983 | 3,687 | -410 |
| 2009 | 152,669 | 18,145 | 3,060 | 11,594 |
| 2008 | 149,855 | 1,182 | 3,437 | 2,971 |
| 2007 | 145,740 | -6,042 | 1,211 | 14,191 |
| 2006 | 144,127 | -34,052 | 602 | 6,081 |
| 2005 | 137,234 | -1,805 | -600 | 6,317 |
| 2004 | 132,661 | 23,897 | -599 | 1,759 |
| 2003 | 130,312 | 69,185 | -1,996 | 3,218 |
| 2002 | 126,429 | 86,578 | -1,197 | 1,975 |
| 2001 | 116,647 | 227,791 | -996 | 4,527 |
| 2000 | 110,754 | 83,013 | -398 | 3,124 |
| 1999 | 102,295 | -84,926 | -1,388 | 10,291 |
| 1998 | 103,906 | -76,766 | -1,189 | -5,280 |
| 1997 | 105,433 | -48,437 | -794 | -1,298 |
| 1996 | 104,140 | -52,110 | 0 | -2,456 |
| 1995 | 100,885 | -112,857 | 0 | 356 |
| 1994 | 101,486 | -77,371 | 199 | -153 |
| 1993 | 103,317 | -95,476 | -199 | -4,641 |
| 1992 | 103,251 | -129,565 | 598 | -5,547 |
| 1991 | 105,477 | -238,965 | 2,199 | -3,325 |
| 1990 | 100,778 | 131,587 | 3,797 | 618 |
| 1989 | 98,298 | -5,079 | 4,592 | -2,718 |
| 1988 | 96,344 | 9,470 | 5,986 | -3,023 |
| 1987 | 94,235 | 9,558 | 5,771 | 2,972 |
| 1986 | 90,902 | 7,992 | 6,094 | 32,700 |
| 1985 | 88,869 | -7,873 | 6,213 | 3,404 |
| 1984 | 87,072 | -8,708 | 5,990 | 3,280 |
| 1983 | 84,628 | -8,783 | 6,343 | 3,613 |
| 1982 | 82,457 | -11,379 | 9,170 | -8,695 |
| 1981 | 80,111 | -12,699 | 10,485 | -5,016 |
| 1980 | 77,932 | -11,641 | 11,027 | 3,128 |
| 1979 | 75,992 | -13,095 | 12,614 | 2,107 |
| 1978 | 74,130 | -13,073 | 11,920 | 2,113 |
| 1977 | 71,663 | -12,399 | 12,160 | 2,584 |
| 1976 | 69,506 | -15,686 | 12,196 | 2,226 |
| 1975 | 67,560 | -13,058 | 11,658 | 2,421 |
| 1974 | 65,357 | -11,473 | 11,367 | 3,145 |
| 1973 | 62,443 | -9,322 | 11,837 | 2,175 |
| 1972 | 60,279 | -8,267 | 10,513 | 2,924 |
| 1971 | 58,484 | -8,162 | 10,951 | 2,286 |
| 1970 | 56,513 | -4,957 | 10,004 | 260 |
| 1969 | 54,768 | -4,485 | 9,427 | 685 |
| 1968 | 53,126 | -3,743 | 11,250 | 438 |
| 1967 | 51,734 | -2,819 | 13,516 | -192 |
| 1966 | 49,486 | -2,911 | 15,697 | -1,262 |
| 1965 | 47,223 | -1,851 | 14,513 | -1,421 |
| 1964 | 45,487 | -2,308 | 12,567 | -349 |
| 1963 | 43,569 | -2,480 | 14,068 | -180 |
| 1962 | 41,603 | -2,658 | 13,150 | 148 |
| 1961 | 40,022 | -2,947 | 14,985 | -306 |
| 1960 | 38,192 | -3,528 | 12,678 | -929 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).
GeoRank.org/population/sierra-leone/slovenia | CC BY
Over the last 10 years, 99.6% of the population change in Sierra Leone is from natural causes (a gain of 1,764,049 people) and 0.41% is from migration (a loss of 7,211 people). In Slovenia 18.1% is from natural causes (a loss of 17,573 people) and 81.9% is from migration (a gain of 79,532 people).
As of 2024, 49,997 residents or 0.6% of the population were not native-born in Sierra Leone, compared to 315,122 people or 14.9% in Slovenia.
Biggest cities by population
|
Sierra Leone
|
|
|---|---|
| City | Population |
| Freetown | 951K |
| Bo | 234K |
| Kenema | 188K |
|
Slovenia
|
|
|---|---|
| City | Population |
| Ljubljana | 284K |
| Maribor | 114K |
| Kranj | 37.6K |
| Celje | 37.1K |
| Velenje | 25.6K |
| Novo Mesto | 24.2K |
| Nova Gorica | 13K |
| Izola | 11.7K |
| Murska Sobota | 11.2K |
| Piran | 3.79K |
Compare countries by 7 more topics
Population differences between Sierra Leone and Slovenia
|
Sierra Leone
|
Slovenia
|
|
|---|---|---|
| Life expectancy | 62.3 years | 82.1 years |
| Average age | 24.4 years | 44 years |
| Median age | 20.5 years | 45.3 years |
| Male:Female ratio | 49.9:50.1 | 50.2:49.8 |
| Fertility rate | 3.79 births per woman | 1.51 births per woman |
| Population density | 323 ppl/mi² | 273.2 ppl/mi² |
Population map with other countries
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/sierra-leone/slovenia | CC BY
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Data sources:
- World Bank | Health (1960–2025, retrieved 2026-04-06)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
- U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
- Wikidata (2026, retrieved 2026-02-08)
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