The latest officially reported population of San Marino was 34,109 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current San Marino's population is 34,159 people compared to 9,090,531 in Sierra Leone.
Population statistics:
- Sierra Leone's population is 266.1 times bigger than San Marino's.
- San Marino is ranked the 193rd most populous country in the world, while Sierra Leone is the 100th.
- The countries together account for 0.11% of the world: 0.0004% for San Marino vs 0.11% for Sierra Leone.
- For the last 10 years, San Marino has had an average growth rate of +0.4% per year vs +2.29% in Sierra Leone.
- Since 2006, the population of San Marino has increased from 30.2K people to 34.2K (13.2% growth), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).
San Marino vs Sierra Leone: population by year and forecast
| Year | Population | |
|---|---|---|
San Marino
|
Sierra Leone
|
|
| 2100 | 31,687 | 16,107,087 |
| 2099 | 31,708 | 16,121,940 |
| 2098 | 31,720 | 16,135,035 |
| 2097 | 31,762 | 16,149,905 |
| 2096 | 31,780 | 16,160,672 |
| 2095 | 31,761 | 16,169,304 |
| 2094 | 31,755 | 16,168,902 |
| 2093 | 31,726 | 16,173,609 |
| 2092 | 31,748 | 16,170,778 |
| 2091 | 31,736 | 16,163,901 |
| 2090 | 31,747 | 16,154,165 |
| 2089 | 31,733 | 16,142,526 |
| 2088 | 31,725 | 16,128,775 |
| 2087 | 31,710 | 16,112,585 |
| 2086 | 31,683 | 16,085,549 |
| 2085 | 31,636 | 16,064,212 |
| 2084 | 31,623 | 16,040,563 |
| 2083 | 31,612 | 16,006,923 |
| 2082 | 31,596 | 15,970,872 |
| 2081 | 31,555 | 15,930,880 |
| 2080 | 31,573 | 15,892,665 |
| 2079 | 31,569 | 15,850,728 |
| 2078 | 31,566 | 15,801,450 |
| 2077 | 31,579 | 15,750,408 |
| 2076 | 31,612 | 15,695,310 |
| 2075 | 31,653 | 15,635,345 |
| 2074 | 31,703 | 15,580,279 |
| 2073 | 31,762 | 15,512,655 |
| 2072 | 31,825 | 15,442,481 |
| 2071 | 31,896 | 15,370,747 |
| 2070 | 31,965 | 15,293,426 |
| 2069 | 32,058 | 15,212,664 |
| 2068 | 32,160 | 15,124,069 |
| 2067 | 32,290 | 15,028,190 |
| 2066 | 32,395 | 14,931,295 |
| 2065 | 32,527 | 14,833,794 |
| 2064 | 32,664 | 14,736,872 |
| 2063 | 32,782 | 14,638,180 |
| 2062 | 32,918 | 14,525,736 |
| 2061 | 33,047 | 14,420,068 |
| 2060 | 33,170 | 14,307,451 |
| 2059 | 33,310 | 14,194,972 |
| 2058 | 33,447 | 14,077,124 |
| 2057 | 33,584 | 13,957,197 |
| 2056 | 33,717 | 13,832,494 |
| 2055 | 33,829 | 13,702,508 |
| 2054 | 33,954 | 13,576,231 |
| 2053 | 34,068 | 13,440,929 |
| 2052 | 34,161 | 13,299,910 |
| 2051 | 34,235 | 13,152,910 |
| 2050 | 34,268 | 13,006,688 |
| 2049 | 34,324 | 12,863,637 |
| 2048 | 34,382 | 12,712,671 |
| 2047 | 34,421 | 12,566,944 |
| 2046 | 34,463 | 12,411,042 |
| 2045 | 34,497 | 12,254,651 |
| 2044 | 34,546 | 12,088,895 |
| 2043 | 34,552 | 11,928,393 |
| 2042 | 34,521 | 11,767,372 |
| 2041 | 34,525 | 11,599,942 |
| 2040 | 34,534 | 11,428,331 |
| 2039 | 34,520 | 11,259,845 |
| 2038 | 34,483 | 11,097,180 |
| 2037 | 34,430 | 10,928,754 |
| 2036 | 34,403 | 10,757,928 |
| 2035 | 34,368 | 10,582,918 |
| 2034 | 34,347 | 10,411,088 |
| 2033 | 34,341 | 10,238,503 |
| 2032 | 34,316 | 10,059,929 |
| 2031 | 34,308 | 9,881,109 |
| 2030 | 34,289 | 9,705,485 |
| 2029 | 34,267 | 9,529,493 |
| 2028 | 34,215 | 9,358,412 |
| 2027 | 34,175 | 9,177,288 |
| 2026 | 34,144 | 8,998,902 |
| 2025 | 34,109 | 8,819,794 |
| 2024 | 33,977 | 8,642,022 |
| 2023 | 33,860 | 8,460,512 |
| 2022 | 33,755 | 8,276,807 |
| 2021 | 34,252 | 8,094,602 |
| 2020 | 34,770 | 7,912,558 |
| 2019 | 34,663 | 7,731,991 |
| 2018 | 34,522 | 7,554,563 |
| 2017 | 33,825 | 7,379,299 |
| 2016 | 33,101 | 7,205,328 |
| 2015 | 32,897 | 7,037,655 |
| 2014 | 32,655 | 6,876,385 |
| 2013 | 33,041 | 6,714,051 |
| 2012 | 33,469 | 6,551,080 |
| 2011 | 32,620 | 6,387,251 |
| 2010 | 33,270 | 6,222,714 |
| 2009 | 33,066 | 6,055,646 |
| 2008 | 31,662 | 5,894,722 |
| 2007 | 31,211 | 5,749,352 |
| 2006 | 30,184 | 5,624,466 |
| 2005 | 29,836 | 5,501,712 |
| 2004 | 29,457 | 5,355,717 |
| 2003 | 27,843 | 5,177,687 |
| 2002 | 27,491 | 4,971,435 |
| 2001 | 27,143 | 4,692,716 |
| 2000 | 26,799 | 4,423,611 |
| 1999 | 26,459 | 4,318,043 |
| 1998 | 26,125 | 4,295,785 |
| 1997 | 25,800 | 4,253,716 |
| 1996 | 25,482 | 4,199,210 |
| 1995 | 25,158 | 4,179,179 |
| 1994 | 24,823 | 4,173,105 |
| 1993 | 24,472 | 4,157,130 |
| 1992 | 24,125 | 4,166,366 |
| 1991 | 23,797 | 4,246,267 |
| 1990 | 23,475 | 4,196,828 |
| 1989 | 23,154 | 4,034,037 |
| 1988 | 22,843 | 3,934,517 |
| 1987 | 22,686 | 3,829,718 |
| 1986 | 22,636 | 3,728,380 |
| 1985 | 22,485 | 3,638,438 |
| 1984 | 22,346 | 3,558,758 |
| 1983 | 22,229 | 3,481,646 |
| 1982 | 22,055 | 3,408,183 |
| 1981 | 21,840 | 3,338,940 |
| 1980 | 21,585 | 3,272,089 |
| 1979 | 21,320 | 3,207,499 |
| 1978 | 21,026 | 3,145,517 |
| 1977 | 20,017 | 3,085,354 |
| 1976 | 19,110 | 3,028,820 |
| 1975 | 19,046 | 2,974,657 |
| 1974 | 19,030 | 2,920,459 |
| 1973 | 18,992 | 2,866,955 |
| 1972 | 18,787 | 2,814,388 |
| 1971 | 18,419 | 2,763,222 |
| 1970 | 18,168 | 2,712,286 |
| 1969 | 18,026 | 2,661,365 |
| 1968 | 17,861 | 2,611,532 |
| 1967 | 17,688 | 2,562,384 |
| 1966 | 17,523 | 2,514,638 |
| 1965 | 17,305 | 2,468,666 |
| 1964 | 16,977 | 2,424,390 |
| 1963 | 16,580 | 2,382,258 |
| 1962 | 16,183 | 2,342,242 |
| 1961 | 15,799 | 2,304,227 |
| 1960 | 15,428 | 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/san-marino/sierra-leone | CC BY 
From 2006 to 2016, the population of San Marino increased by 2,917 people (a 9.66% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).
For the next 10 years, from 2016 to 2026, San Marino gained 1,058 people (a 3.2% growth), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).
San Marino was ranked 193rd most populous country in 2006 and is still 193rd 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) San Marino's population will grow by 0.32% to 34,268 people with a rank change from 193rd to 192nd. 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 San Marino's population already peaked in 2020 at 34.8K people and is projected to decrease to 31.7K people by 2100.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
San Marino
|
Sierra Leone
|
|
| 2100 | -0.06% | -0.09% |
| 2099 | -0.04% | -0.08% |
| 2098 | -0.13% | -0.09% |
| 2097 | -0.05% | -0.07% |
| 2096 | 0.06% | -0.05% |
| 2095 | 0.02% | 0.002% |
| 2094 | 0.09% | -0.03% |
| 2093 | -0.07% | 0.02% |
| 2092 | 0.04% | 0.04% |
| 2091 | -0.04% | 0.06% |
| 2090 | 0.04% | 0.07% |
| 2089 | 0.03% | 0.09% |
| 2088 | 0.05% | 0.1% |
| 2087 | 0.08% | 0.17% |
| 2086 | 0.15% | 0.13% |
| 2085 | 0.04% | 0.15% |
| 2084 | 0.04% | 0.21% |
| 2083 | 0.05% | 0.23% |
| 2082 | 0.13% | 0.25% |
| 2081 | -0.06% | 0.24% |
| 2080 | 0.01% | 0.26% |
| 2079 | 0.01% | 0.31% |
| 2078 | -0.04% | 0.32% |
| 2077 | -0.1% | 0.35% |
| 2076 | -0.13% | 0.38% |
| 2075 | -0.16% | 0.35% |
| 2074 | -0.19% | 0.44% |
| 2073 | -0.2% | 0.45% |
| 2072 | -0.22% | 0.47% |
| 2071 | -0.22% | 0.51% |
| 2070 | -0.29% | 0.53% |
| 2069 | -0.32% | 0.59% |
| 2068 | -0.4% | 0.64% |
| 2067 | -0.32% | 0.65% |
| 2066 | -0.41% | 0.66% |
| 2065 | -0.42% | 0.66% |
| 2064 | -0.36% | 0.67% |
| 2063 | -0.41% | 0.77% |
| 2062 | -0.39% | 0.73% |
| 2061 | -0.37% | 0.79% |
| 2060 | -0.42% | 0.79% |
| 2059 | -0.41% | 0.84% |
| 2058 | -0.41% | 0.86% |
| 2057 | -0.39% | 0.9% |
| 2056 | -0.33% | 0.95% |
| 2055 | -0.37% | 0.93% |
| 2054 | -0.33% | 1.01% |
| 2053 | -0.27% | 1.06% |
| 2052 | -0.21% | 1.12% |
| 2051 | -0.1% | 1.12% |
| 2050 | -0.16% | 1.11% |
| 2049 | -0.17% | 1.19% |
| 2048 | -0.11% | 1.16% |
| 2047 | -0.12% | 1.26% |
| 2046 | -0.1% | 1.28% |
| 2045 | -0.14% | 1.37% |
| 2044 | -0.02% | 1.35% |
| 2043 | 0.09% | 1.37% |
| 2042 | -0.01% | 1.44% |
| 2041 | -0.03% | 1.5% |
| 2040 | 0.04% | 1.5% |
| 2039 | 0.11% | 1.47% |
| 2038 | 0.15% | 1.54% |
| 2037 | 0.08% | 1.59% |
| 2036 | 0.1% | 1.65% |
| 2035 | 0.06% | 1.65% |
| 2034 | 0.02% | 1.69% |
| 2033 | 0.07% | 1.78% |
| 2032 | 0.02% | 1.81% |
| 2031 | 0.05% | 1.81% |
| 2030 | 0.07% | 1.85% |
| 2029 | 0.15% | 1.83% |
| 2028 | 0.12% | 1.97% |
| 2027 | 0.09% | 1.98% |
| 2026 | 0.1% | 2.03% |
| 2025 | 0.39% | 2.06% |
| 2024 | 0.35% | 2.15% |
| 2023 | 0.31% | 2.22% |
| 2022 | -1.45% | 2.25% |
| 2021 | -1.49% | 2.3% |
| 2020 | 0.31% | 2.34% |
| 2019 | 0.41% | 2.35% |
| 2018 | 2.06% | 2.38% |
| 2017 | 2.19% | 2.41% |
| 2016 | 0.62% | 2.38% |
| 2015 | 0.74% | 2.35% |
| 2014 | -1.17% | 2.42% |
| 2013 | -1.28% | 2.49% |
| 2012 | 2.6% | 2.56% |
| 2011 | -1.95% | 2.64% |
| 2010 | 0.62% | 2.76% |
| 2009 | 4.43% | 2.73% |
| 2008 | 1.45% | 2.53% |
| 2007 | 3.4% | 2.22% |
| 2006 | 1.17% | 2.23% |
| 2005 | 1.29% | 2.73% |
| 2004 | 5.8% | 3.44% |
| 2003 | 1.28% | 4.15% |
| 2002 | 1.28% | 5.94% |
| 2001 | 1.28% | 6.08% |
| 2000 | 1.29% | 2.44% |
| 1999 | 1.28% | 0.52% |
| 1998 | 1.26% | 0.99% |
| 1997 | 1.25% | 1.3% |
| 1996 | 1.29% | 0.48% |
| 1995 | 1.35% | 0.15% |
| 1994 | 1.43% | 0.38% |
| 1993 | 1.44% | -0.22% |
| 1992 | 1.38% | -1.88% |
| 1991 | 1.37% | 1.18% |
| 1990 | 1.39% | 4.04% |
| 1989 | 1.36% | 2.53% |
| 1988 | 0.69% | 2.74% |
| 1987 | 0.22% | 2.72% |
| 1986 | 0.67% | 2.47% |
| 1985 | 0.62% | 2.24% |
| 1984 | 0.53% | 2.21% |
| 1983 | 0.79% | 2.16% |
| 1982 | 0.98% | 2.07% |
| 1981 | 1.18% | 2.04% |
| 1980 | 1.24% | 2.01% |
| 1979 | 1.4% | 1.97% |
| 1978 | 5.04% | 1.95% |
| 1977 | 4.75% | 1.87% |
| 1976 | 0.34% | 1.82% |
| 1975 | 0.08% | 1.86% |
| 1974 | 0.2% | 1.87% |
| 1973 | 1.09% | 1.87% |
| 1972 | 2% | 1.85% |
| 1971 | 1.38% | 1.88% |
| 1970 | 0.79% | 1.91% |
| 1969 | 0.92% | 1.91% |
| 1968 | 0.98% | 1.92% |
| 1967 | 0.94% | 1.9% |
| 1966 | 1.26% | 1.86% |
| 1965 | 1.93% | 1.83% |
| 1964 | 2.39% | 1.77% |
| 1963 | 2.45% | 1.71% |
| 1962 | 2.43% | 1.65% |
| 1961 | 2.4% | 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/san-marino/sierra-leone | CC BY
In 2025, the population of San Marino grew by 0.39%, while Sierra Leone's population grew by 2.06%.
Live population counters
|
San Marino
|
Sierra Leone
|
|
|---|---|---|
| Current population |
34159
|
9090531
|
| Population rank | 193/197 | 100/197 |
| Percent of world population | 0.0004% | 0.11% |
| One net population change |
2.77 days
|
2.96 minutes
|
| One birth every |
2.57 days
|
2.02 minutes
|
| One death every |
1.44 days
|
7.41 minutes
|
| Daily growth/decline | +0 | +487 |
| Annual growth/decline | +132 | +177,772 |
| Annual growth/decline rate | +0.39% | +2.06% |
| Population growth rate rank | 140/197 | 47/197 |
| One migration net change every |
3 days
|
46.6 minutes
|
| Annual migration change | +122 | -11,309 |
| Net migration rank | 72/196 | 136/196 |
| Foreign-born residents | 5,838 | 49,997 |
| Foreign-born residents rank | 183/195 | 151/195 |
| Foreign-born share of population | 17.4% | 0.6% |
| Foreign-born share rank | 35/195 | 174/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
San Marino
|
Sierra Leone
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | 122 | - | -11,309 |
| 2024 | -112 | 37 | 189,234 | -11,000 |
| 2023 | -92 | -190 | 188,788 | -4,000 |
| 2022 | -58 | -403 | 186,625 | -4,000 |
| 2021 | -99 | -368 | 183,326 | -1,544 |
| 2020 | -122 | 247 | 181,015 | 1,292 |
| 2019 | -17 | 187 | 181,068 | -2,238 |
| 2018 | -11 | 172 | 178,772 | -2,741 |
| 2017 | -51 | 234 | 173,259 | 1,234 |
| 2016 | 10 | 291 | 168,784 | 4,657 |
| 2015 | 36 | 273 | 162,275 | -356 |
| 2014 | 46 | 74 | 160,137 | 485 |
| 2013 | 73 | 57 | 161,265 | 2,773 |
| 2012 | 54 | 143 | 160,915 | 988 |
| 2011 | 105 | 2,325 | 158,858 | 6,895 |
| 2010 | 126 | 592 | 155,338 | 7,983 |
| 2009 | 145 | 311 | 152,669 | 18,145 |
| 2008 | 159 | 268 | 149,855 | 1,182 |
| 2007 | 69 | 314 | 145,740 | -6,042 |
| 2006 | 75 | 310 | 144,127 | -34,052 |
| 2005 | 66 | 314 | 137,234 | -1,805 |
| 2004 | 121 | 285 | 132,661 | 23,897 |
| 2003 | 79 | 277 | 130,312 | 69,185 |
| 2002 | 112 | 241 | 126,429 | 86,578 |
| 2001 | 132 | 215 | 116,647 | 227,791 |
| 2000 | 107 | 233 | 110,754 | 83,013 |
| 1999 | 80 | 256 | 102,295 | -84,926 |
| 1998 | 74 | 257 | 103,906 | -76,766 |
| 1997 | 71 | 255 | 105,433 | -48,437 |
| 1996 | 63 | 257 | 104,140 | -52,110 |
| 1995 | 51 | 262 | 100,885 | -112,857 |
| 1994 | 43 | 300 | 101,486 | -77,371 |
| 1993 | 38 | 325 | 103,317 | -95,476 |
| 1992 | 42 | 285 | 103,251 | -129,565 |
| 1991 | 45 | 278 | 105,477 | -238,965 |
| 1990 | 41 | 289 | 100,778 | 131,587 |
| 1989 | 36 | 285 | 98,298 | -5,079 |
| 1988 | 34 | 268 | 96,344 | 9,470 |
| 1987 | 31 | -20 | 94,235 | 9,558 |
| 1986 | 40 | 44 | 90,902 | 7,992 |
| 1985 | 44 | 166 | 88,869 | -7,873 |
| 1984 | 46 | 32 | 87,072 | -8,708 |
| 1983 | 54 | 115 | 84,628 | -8,783 |
| 1982 | 61 | 117 | 82,457 | -11,379 |
| 1981 | 76 | 169 | 80,111 | -12,699 |
| 1980 | 90 | 169 | 77,932 | -11,641 |
| 1979 | 104 | 164 | 75,992 | -13,095 |
| 1978 | 121 | 199 | 74,130 | -13,073 |
| 1977 | 117 | 1,577 | 71,663 | -12,399 |
| 1976 | 126 | 0 | 69,506 | -15,686 |
| 1975 | 141 | -133 | 67,560 | -13,058 |
| 1974 | 153 | -131 | 65,357 | -11,473 |
| 1973 | 167 | -124 | 62,443 | -9,322 |
| 1972 | 173 | 191 | 60,279 | -8,267 |
| 1971 | 174 | 201 | 58,484 | -8,162 |
| 1970 | 173 | -39 | 56,513 | -4,957 |
| 1969 | 173 | -29 | 54,768 | -4,485 |
| 1968 | 171 | 8 | 53,126 | -3,743 |
| 1967 | 171 | -3 | 51,734 | -2,819 |
| 1966 | 173 | -9 | 49,486 | -2,911 |
| 1965 | 169 | 99 | 47,223 | -1,851 |
| 1964 | 163 | 233 | 45,487 | -2,308 |
| 1963 | 158 | 242 | 43,569 | -2,480 |
| 1962 | 155 | 238 | 41,603 | -2,658 |
| 1961 | 174 | 206 | 40,022 | -2,947 |
| 1960 | 139 | 229 | 38,192 | -3,528 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/san-marino/sierra-leone | CC BY
Over the last 10 years, 51.8% of the population change in San Marino is from natural causes (a loss of 516 people) and 48.2% is from migration (a gain of 480 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, 5,838 residents or 17.4% of the population were not native-born in San Marino, compared to 49,997 people or 0.6% in Sierra Leone.
Biggest cities by population
|
San Marino
|
|
|---|---|
| City | Population |
| Dogana | 7K |
| San Marino | 4.04K |
|
Sierra Leone
|
|
|---|---|
| City | Population |
| Freetown | 951K |
| Bo | 234K |
| Kenema | 188K |
Compare countries by 7 more topics
Population differences between San Marino and Sierra Leone
|
San Marino
|
Sierra Leone
|
|
|---|---|---|
| Life expectancy | 86 years | 62.3 years |
| Average age | 46.4 years | 24.6 years |
| Median age | 49.5 years | 20.7 years |
| Male:Female ratio | 49.2:50.8 | 49.9:50.1 |
| Fertility rate | 1.16 births per woman | 3.7 births per woman |
| Population density | 1,474 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/san-marino/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)
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