The latest officially reported population of Nauru was 12,025 in 2025 vs 34,109 people in San Marino in 2025. In 2026, based on the adjusted UN estimation, the current Nauru's population is 12,139 people compared to 34,159 in San Marino.
Population statistics:
- San Marino's population is 2.81 times bigger than Nauru's.
- Nauru is ranked the 195th most populous country in the world, while San Marino is the 193rd.
- The countries together account for 0.0006% of the world: 0.0001% for Nauru vs 0.0004% for San Marino.
- For the last 10 years, Nauru has had an average growth rate of +1.03% per year vs +0.4% in San Marino.
- Since 2006, the population of Nauru has increased from 10K people to 12.1K (21% growth), while San Marino has grown from 30.2K to 34.2K (13.2% growth).
Nauru vs San Marino: population by year and forecast
| Year | Population | |
|---|---|---|
Nauru
|
San Marino
|
|
| 2100 | 20,708 | 31,687 |
| 2099 | 20,677 | 31,708 |
| 2098 | 20,636 | 31,720 |
| 2097 | 20,596 | 31,762 |
| 2096 | 20,561 | 31,780 |
| 2095 | 20,526 | 31,761 |
| 2094 | 20,479 | 31,755 |
| 2093 | 20,423 | 31,726 |
| 2092 | 20,377 | 31,748 |
| 2091 | 20,332 | 31,736 |
| 2090 | 20,276 | 31,747 |
| 2089 | 20,210 | 31,733 |
| 2088 | 20,143 | 31,725 |
| 2087 | 20,087 | 31,710 |
| 2086 | 20,019 | 31,683 |
| 2085 | 19,950 | 31,636 |
| 2084 | 19,872 | 31,623 |
| 2083 | 19,787 | 31,612 |
| 2082 | 19,700 | 31,596 |
| 2081 | 19,603 | 31,555 |
| 2080 | 19,517 | 31,573 |
| 2079 | 19,411 | 31,569 |
| 2078 | 19,304 | 31,566 |
| 2077 | 19,198 | 31,579 |
| 2076 | 19,089 | 31,612 |
| 2075 | 18,978 | 31,653 |
| 2074 | 18,866 | 31,703 |
| 2073 | 18,750 | 31,762 |
| 2072 | 18,630 | 31,825 |
| 2071 | 18,527 | 31,896 |
| 2070 | 18,388 | 31,965 |
| 2069 | 18,281 | 32,058 |
| 2068 | 18,160 | 32,160 |
| 2067 | 18,017 | 32,290 |
| 2066 | 17,896 | 32,395 |
| 2065 | 17,769 | 32,527 |
| 2064 | 17,641 | 32,664 |
| 2063 | 17,516 | 32,782 |
| 2062 | 17,394 | 32,918 |
| 2061 | 17,260 | 33,047 |
| 2060 | 17,129 | 33,170 |
| 2059 | 17,006 | 33,310 |
| 2058 | 16,874 | 33,447 |
| 2057 | 16,745 | 33,584 |
| 2056 | 16,605 | 33,717 |
| 2055 | 16,465 | 33,829 |
| 2054 | 16,328 | 33,954 |
| 2053 | 16,186 | 34,068 |
| 2052 | 16,042 | 34,161 |
| 2051 | 15,881 | 34,235 |
| 2050 | 15,731 | 34,268 |
| 2049 | 15,565 | 34,324 |
| 2048 | 15,405 | 34,382 |
| 2047 | 15,234 | 34,421 |
| 2046 | 15,058 | 34,463 |
| 2045 | 14,888 | 34,497 |
| 2044 | 14,712 | 34,546 |
| 2043 | 14,539 | 34,552 |
| 2042 | 14,357 | 34,521 |
| 2041 | 14,174 | 34,525 |
| 2040 | 13,990 | 34,534 |
| 2039 | 13,821 | 34,520 |
| 2038 | 13,666 | 34,483 |
| 2037 | 13,507 | 34,430 |
| 2036 | 13,358 | 34,403 |
| 2035 | 13,190 | 34,368 |
| 2034 | 13,035 | 34,347 |
| 2033 | 12,888 | 34,341 |
| 2032 | 12,753 | 34,316 |
| 2031 | 12,619 | 34,308 |
| 2030 | 12,499 | 34,289 |
| 2029 | 12,381 | 34,267 |
| 2028 | 12,286 | 34,215 |
| 2027 | 12,177 | 34,175 |
| 2026 | 12,100 | 34,144 |
| 2025 | 12,025 | 34,109 |
| 2024 | 11,947 | 33,977 |
| 2023 | 11,875 | 33,860 |
| 2022 | 11,801 | 33,755 |
| 2021 | 11,709 | 34,252 |
| 2020 | 11,643 | 34,770 |
| 2019 | 11,587 | 34,663 |
| 2018 | 11,477 | 34,522 |
| 2017 | 11,324 | 33,825 |
| 2016 | 11,150 | 33,101 |
| 2015 | 10,954 | 32,897 |
| 2014 | 10,742 | 32,655 |
| 2013 | 10,517 | 33,041 |
| 2012 | 10,267 | 33,469 |
| 2011 | 10,098 | 32,620 |
| 2010 | 10,043 | 33,270 |
| 2009 | 10,016 | 33,066 |
| 2008 | 10,009 | 31,662 |
| 2007 | 10,020 | 31,211 |
| 2006 | 10,034 | 30,184 |
| 2005 | 10,049 | 29,836 |
| 2004 | 10,060 | 29,457 |
| 2003 | 10,059 | 27,843 |
| 2002 | 10,082 | 27,491 |
| 2001 | 10,130 | 27,143 |
| 2000 | 10,168 | 26,799 |
| 1999 | 10,187 | 26,459 |
| 1998 | 10,198 | 26,125 |
| 1997 | 10,197 | 25,800 |
| 1996 | 10,183 | 25,482 |
| 1995 | 10,165 | 25,158 |
| 1994 | 10,137 | 24,823 |
| 1993 | 10,102 | 24,472 |
| 1992 | 10,021 | 24,125 |
| 1991 | 9,850 | 23,797 |
| 1990 | 9,622 | 23,475 |
| 1989 | 9,390 | 23,154 |
| 1988 | 9,165 | 22,843 |
| 1987 | 8,946 | 22,686 |
| 1986 | 8,742 | 22,636 |
| 1985 | 8,551 | 22,485 |
| 1984 | 8,377 | 22,346 |
| 1983 | 8,216 | 22,229 |
| 1982 | 8,040 | 22,055 |
| 1981 | 7,839 | 21,840 |
| 1980 | 7,649 | 21,585 |
| 1979 | 7,468 | 21,320 |
| 1978 | 7,298 | 21,026 |
| 1977 | 7,163 | 20,017 |
| 1976 | 7,064 | 19,110 |
| 1975 | 6,987 | 19,046 |
| 1974 | 6,923 | 19,030 |
| 1973 | 6,866 | 18,992 |
| 1972 | 6,812 | 18,787 |
| 1971 | 6,762 | 18,419 |
| 1970 | 6,710 | 18,168 |
| 1969 | 6,581 | 18,026 |
| 1968 | 6,328 | 17,861 |
| 1967 | 6,135 | 17,688 |
| 1966 | 6,043 | 17,523 |
| 1965 | 5,832 | 17,305 |
| 1964 | 5,515 | 16,977 |
| 1963 | 5,226 | 16,580 |
| 1962 | 4,979 | 16,183 |
| 1961 | 4,774 | 15,799 |
| 1960 | 4,607 | 15,428 |
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/nauru/san-marino | CC BY 
From 2006 to 2016, the population of Nauru increased by 1,116 people (a 11.1% growth), while San Marino gained 2,917 people (a 9.66% growth).
For the next 10 years, from 2016 to 2026, Nauru gained 989 people (a 8.87% growth), while San Marino's population increased by 1,058 people (a 3.2% growth).
Nauru was ranked 196th most populous country in 2006 and is 195th in 2026. San Marino was ranked 193rd in 2006 and still ranked 193rd now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Nauru's population will grow by 29.6% to 15,731 people with a rank change from 195th to 194th. The population of San Marino will increase by 0.32% to 34,268 people and rank change from 193rd to 192nd.
Nauru is projected to reach its peak in 2100 at 20.7K 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 | |
|---|---|---|
|
Nauru
|
San Marino
|
|
| 2100 | 0.15% | -0.06% |
| 2099 | 0.2% | -0.04% |
| 2098 | 0.19% | -0.13% |
| 2097 | 0.17% | -0.05% |
| 2096 | 0.17% | 0.06% |
| 2095 | 0.23% | 0.02% |
| 2094 | 0.27% | 0.09% |
| 2093 | 0.23% | -0.07% |
| 2092 | 0.22% | 0.04% |
| 2091 | 0.28% | -0.04% |
| 2090 | 0.33% | 0.04% |
| 2089 | 0.33% | 0.03% |
| 2088 | 0.28% | 0.05% |
| 2087 | 0.34% | 0.08% |
| 2086 | 0.35% | 0.15% |
| 2085 | 0.39% | 0.04% |
| 2084 | 0.43% | 0.04% |
| 2083 | 0.44% | 0.05% |
| 2082 | 0.5% | 0.13% |
| 2081 | 0.44% | -0.06% |
| 2080 | 0.54% | 0.01% |
| 2079 | 0.56% | 0.01% |
| 2078 | 0.55% | -0.04% |
| 2077 | 0.57% | -0.1% |
| 2076 | 0.59% | -0.13% |
| 2075 | 0.6% | -0.16% |
| 2074 | 0.62% | -0.19% |
| 2073 | 0.65% | -0.2% |
| 2072 | 0.56% | -0.22% |
| 2071 | 0.75% | -0.22% |
| 2070 | 0.59% | -0.29% |
| 2069 | 0.66% | -0.32% |
| 2068 | 0.8% | -0.4% |
| 2067 | 0.68% | -0.32% |
| 2066 | 0.71% | -0.41% |
| 2065 | 0.73% | -0.42% |
| 2064 | 0.71% | -0.36% |
| 2063 | 0.7% | -0.41% |
| 2062 | 0.78% | -0.39% |
| 2061 | 0.76% | -0.37% |
| 2060 | 0.73% | -0.42% |
| 2059 | 0.78% | -0.41% |
| 2058 | 0.77% | -0.41% |
| 2057 | 0.85% | -0.39% |
| 2056 | 0.85% | -0.33% |
| 2055 | 0.84% | -0.37% |
| 2054 | 0.87% | -0.33% |
| 2053 | 0.9% | -0.27% |
| 2052 | 1.01% | -0.21% |
| 2051 | 0.96% | -0.1% |
| 2050 | 1.06% | -0.16% |
| 2049 | 1.04% | -0.17% |
| 2048 | 1.12% | -0.11% |
| 2047 | 1.17% | -0.12% |
| 2046 | 1.14% | -0.1% |
| 2045 | 1.2% | -0.14% |
| 2044 | 1.19% | -0.02% |
| 2043 | 1.27% | 0.09% |
| 2042 | 1.29% | -0.01% |
| 2041 | 1.32% | -0.03% |
| 2040 | 1.22% | 0.04% |
| 2039 | 1.14% | 0.11% |
| 2038 | 1.17% | 0.15% |
| 2037 | 1.12% | 0.08% |
| 2036 | 1.27% | 0.1% |
| 2035 | 1.19% | 0.06% |
| 2034 | 1.14% | 0.02% |
| 2033 | 1.06% | 0.07% |
| 2032 | 1.06% | 0.02% |
| 2031 | 0.96% | 0.05% |
| 2030 | 0.96% | 0.07% |
| 2029 | 0.77% | 0.15% |
| 2028 | 0.9% | 0.12% |
| 2027 | 0.64% | 0.09% |
| 2026 | 0.63% | 0.1% |
| 2025 | 0.65% | 0.39% |
| 2024 | 0.61% | 0.35% |
| 2023 | 0.63% | 0.31% |
| 2022 | 0.79% | -1.45% |
| 2021 | 0.57% | -1.49% |
| 2020 | 0.48% | 0.31% |
| 2019 | 0.96% | 0.41% |
| 2018 | 1.35% | 2.06% |
| 2017 | 1.56% | 2.19% |
| 2016 | 1.79% | 0.62% |
| 2015 | 1.97% | 0.74% |
| 2014 | 2.14% | -1.17% |
| 2013 | 2.43% | -1.28% |
| 2012 | 1.67% | 2.6% |
| 2011 | 0.55% | -1.95% |
| 2010 | 0.27% | 0.62% |
| 2009 | 0.07% | 4.43% |
| 2008 | -0.11% | 1.45% |
| 2007 | -0.14% | 3.4% |
| 2006 | -0.15% | 1.17% |
| 2005 | -0.11% | 1.29% |
| 2004 | 0.01% | 5.8% |
| 2003 | -0.23% | 1.28% |
| 2002 | -0.47% | 1.28% |
| 2001 | -0.37% | 1.28% |
| 2000 | -0.19% | 1.29% |
| 1999 | -0.11% | 1.28% |
| 1998 | 0.01% | 1.26% |
| 1997 | 0.14% | 1.25% |
| 1996 | 0.18% | 1.29% |
| 1995 | 0.28% | 1.35% |
| 1994 | 0.35% | 1.43% |
| 1993 | 0.81% | 1.44% |
| 1992 | 1.74% | 1.38% |
| 1991 | 2.37% | 1.37% |
| 1990 | 2.47% | 1.39% |
| 1989 | 2.45% | 1.36% |
| 1988 | 2.45% | 0.69% |
| 1987 | 2.33% | 0.22% |
| 1986 | 2.23% | 0.67% |
| 1985 | 2.08% | 0.62% |
| 1984 | 1.96% | 0.53% |
| 1983 | 2.19% | 0.79% |
| 1982 | 2.56% | 0.98% |
| 1981 | 2.48% | 1.18% |
| 1980 | 2.42% | 1.24% |
| 1979 | 2.33% | 1.4% |
| 1978 | 1.88% | 5.04% |
| 1977 | 1.4% | 4.75% |
| 1976 | 1.1% | 0.34% |
| 1975 | 0.92% | 0.08% |
| 1974 | 0.83% | 0.2% |
| 1973 | 0.79% | 1.09% |
| 1972 | 0.74% | 2% |
| 1971 | 0.77% | 1.38% |
| 1970 | 1.96% | 0.79% |
| 1969 | 4% | 0.92% |
| 1968 | 3.15% | 0.98% |
| 1967 | 1.52% | 0.94% |
| 1966 | 3.62% | 1.26% |
| 1965 | 5.75% | 1.93% |
| 1964 | 5.53% | 2.39% |
| 1963 | 4.96% | 2.45% |
| 1962 | 4.29% | 2.43% |
| 1961 | 3.62% | 2.4% |
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/nauru/san-marino | CC BY
In 2025, the population of Nauru grew by 0.65%, while San Marino's population grew by 0.39%.
Live population counters
|
Nauru
|
San Marino
|
|
|---|---|---|
| Current population |
12139
|
34159
|
| Population rank | 195/197 | 193/197 |
| Percent of world population | 0.0001% | 0.0004% |
| One net population change |
4.69 days
|
2.77 days
|
| One birth every |
1.25 days
|
2.57 days
|
| One death every |
4.06 days
|
1.44 days
|
| Daily growth/decline | +0 | +0 |
| Annual growth/decline | +78 | +132 |
| Annual growth/decline rate | +0.65% | +0.39% |
| Population growth rate rank | 119/197 | 140/197 |
| One migration net change every |
3 days
|
3 days
|
| Annual migration change | -122 | +122 |
| Net migration rank | 82/196 | 72/196 |
| Foreign-born residents | 2,548 | 5,838 |
| Foreign-born residents rank | 191/195 | 183/195 |
| Foreign-born share of population | 21.3% | 17.4% |
| Foreign-born share rank | 29/195 | 35/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Nauru
|
San Marino
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -122 | - | 122 |
| 2024 | 203 | -121 | -112 | 37 |
| 2023 | 213 | -148 | -92 | -190 |
| 2022 | 226 | -144 | -58 | -403 |
| 2021 | 236 | -137 | -99 | -368 |
| 2020 | 246 | -214 | -122 | 247 |
| 2019 | 255 | -171 | -17 | 187 |
| 2018 | 265 | -131 | -11 | 172 |
| 2017 | 279 | -115 | -51 | 234 |
| 2016 | 289 | -105 | 10 | 291 |
| 2015 | 291 | -86 | 36 | 273 |
| 2014 | 290 | -69 | 46 | 74 |
| 2013 | 291 | -53 | 73 | 57 |
| 2012 | 292 | -38 | 54 | 143 |
| 2011 | 291 | -206 | 105 | 2,325 |
| 2010 | 281 | -246 | 126 | 592 |
| 2009 | 261 | -249 | 145 | 311 |
| 2008 | 240 | -243 | 159 | 268 |
| 2007 | 222 | -235 | 69 | 314 |
| 2006 | 209 | -224 | 75 | 310 |
| 2005 | 204 | -217 | 66 | 314 |
| 2004 | 202 | -210 | 121 | 285 |
| 2003 | 201 | -199 | 79 | 277 |
| 2002 | 200 | -247 | 112 | 241 |
| 2001 | 203 | -252 | 132 | 215 |
| 2000 | 207 | -236 | 107 | 233 |
| 1999 | 212 | -227 | 80 | 256 |
| 1998 | 214 | -217 | 74 | 257 |
| 1997 | 218 | -209 | 71 | 255 |
| 1996 | 221 | -204 | 63 | 257 |
| 1995 | 225 | -201 | 51 | 262 |
| 1994 | 229 | -196 | 43 | 300 |
| 1993 | 235 | -194 | 38 | 325 |
| 1992 | 237 | -121 | 42 | 285 |
| 1991 | 225 | 0 | 45 | 278 |
| 1990 | 214 | 20 | 41 | 289 |
| 1989 | 204 | 24 | 36 | 285 |
| 1988 | 195 | 29 | 34 | 268 |
| 1987 | 186 | 27 | 31 | -20 |
| 1986 | 178 | 21 | 40 | 44 |
| 1985 | 171 | 8 | 44 | 166 |
| 1984 | 166 | -2 | 46 | 32 |
| 1983 | 163 | -5 | 54 | 115 |
| 1982 | 162 | 30 | 61 | 117 |
| 1981 | 157 | 44 | 76 | 169 |
| 1980 | 145 | 44 | 90 | 169 |
| 1979 | 130 | 48 | 104 | 164 |
| 1978 | 111 | 40 | 121 | 199 |
| 1977 | 89 | 32 | 117 | 1,577 |
| 1976 | 79 | 0 | 126 | 0 |
| 1975 | 70 | 0 | 141 | -133 |
| 1974 | 63 | 0 | 153 | -131 |
| 1973 | 57 | 0 | 167 | -124 |
| 1972 | 53 | 0 | 173 | 191 |
| 1971 | 50 | 0 | 174 | 201 |
| 1970 | 49 | 0 | 173 | -39 |
| 1969 | 71 | 132 | 173 | -29 |
| 1968 | 116 | 180 | 171 | 8 |
| 1967 | 117 | -28 | 171 | -3 |
| 1966 | 123 | -32 | 173 | -9 |
| 1965 | 113 | 218 | 169 | 99 |
| 1964 | 100 | 203 | 163 | 233 |
| 1963 | 88 | 181 | 158 | 242 |
| 1962 | 75 | 158 | 155 | 238 |
| 1961 | 70 | 120 | 174 | 206 |
| 1960 | 72 | 76 | 139 | 229 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/nauru/san-marino | CC BY
Over the last 10 years, 64.6% of the population change in Nauru is from natural causes (a gain of 2,503 people) and 35.4% is from migration (a loss of 1,372 people). In San Marino 51.8% is from natural causes (a loss of 516 people) and 48.2% is from migration (a gain of 480 people).
As of 2024, 2,548 residents or 21.3% of the population were not native-born in Nauru, compared to 5,838 people or 17.4% in San Marino.
Biggest cities by population
|
Nauru
|
|
|---|---|
| City | Population |
| Yaren | 747 |
|
San Marino
|
|
|---|---|
| City | Population |
| Dogana | 7K |
| San Marino | 4.04K |
Compare countries by 7 more topics
Population differences between Nauru and San Marino
|
Nauru
|
San Marino
|
|
|---|---|---|
| Life expectancy | 62.6 years | 86 years |
| Average age | 25.5 years | 46.4 years |
| Median age | 21.3 years | 49.5 years |
| Male:Female ratio | 50.9:49.1 | 49.2:50.8 |
| Fertility rate | 3.29 births per woman | 1.16 births per woman |
| Population density | 1,567 ppl/mi² | 1,474 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/nauru/san-marino | 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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