The latest officially reported population of New Zealand was 5,287,500 in 2024 vs 8,642,022 people in Sierra Leone in 2024. In 2026, based on the adjusted UN estimation, the current New Zealand's population is 5,374,272 people compared to 9,049,533 in Sierra Leone.
Population statistics:
- Sierra Leone's population is 1.68 times bigger than New Zealand's.
- New Zealand is ranked the 124th most populous country in the world, while Sierra Leone is the 101st.
- The countries together account for 0.17% of the world: 0.06% for New Zealand vs 0.11% for Sierra Leone.
- For the last 10 years, New Zealand has had an average growth rate of +1.6% per year vs +2.32% in Sierra Leone.
- Since 2006, the population of New Zealand has increased from 4.18M people to 5.37M (28.4% growth), while Sierra Leone has grown from 5.62M to 9.05M (60.9% growth).
New Zealand vs Sierra Leone: population by year and forecast
| Year | Population | |
|---|---|---|
New Zealand
|
Sierra Leone
|
|
| 2100 | 5,918,837 | 16,111,324 |
| 2099 | 5,923,132 | 16,126,181 |
| 2098 | 5,927,206 | 16,139,280 |
| 2097 | 5,930,263 | 16,154,153 |
| 2096 | 5,932,907 | 16,164,923 |
| 2095 | 5,934,847 | 16,173,557 |
| 2094 | 5,936,183 | 16,173,155 |
| 2093 | 5,938,804 | 16,177,864 |
| 2092 | 5,939,085 | 16,175,032 |
| 2091 | 5,940,665 | 16,168,153 |
| 2090 | 5,941,752 | 16,158,415 |
| 2089 | 5,944,871 | 16,146,773 |
| 2088 | 5,945,635 | 16,133,018 |
| 2087 | 5,948,586 | 16,116,823 |
| 2086 | 5,951,745 | 16,089,780 |
| 2085 | 5,955,275 | 16,068,438 |
| 2084 | 5,959,115 | 16,044,782 |
| 2083 | 5,963,613 | 16,011,134 |
| 2082 | 5,966,943 | 15,975,073 |
| 2081 | 5,968,511 | 15,935,071 |
| 2080 | 5,971,082 | 15,896,846 |
| 2079 | 5,972,331 | 15,854,898 |
| 2078 | 5,972,928 | 15,805,607 |
| 2077 | 5,971,804 | 15,754,551 |
| 2076 | 5,971,386 | 15,699,439 |
| 2075 | 5,970,985 | 15,639,458 |
| 2074 | 5,969,834 | 15,584,377 |
| 2073 | 5,968,506 | 15,516,736 |
| 2072 | 5,964,548 | 15,446,543 |
| 2071 | 5,964,493 | 15,374,790 |
| 2070 | 5,963,811 | 15,297,449 |
| 2069 | 5,962,551 | 15,216,666 |
| 2068 | 5,960,918 | 15,128,048 |
| 2067 | 5,958,438 | 15,032,144 |
| 2066 | 5,954,539 | 14,935,222 |
| 2065 | 5,950,378 | 14,837,697 |
| 2064 | 5,946,851 | 14,740,749 |
| 2063 | 5,944,910 | 14,642,031 |
| 2062 | 5,940,838 | 14,529,557 |
| 2061 | 5,939,601 | 14,423,861 |
| 2060 | 5,936,094 | 14,311,215 |
| 2059 | 5,931,426 | 14,198,706 |
| 2058 | 5,925,816 | 14,080,827 |
| 2057 | 5,919,823 | 13,960,869 |
| 2056 | 5,913,287 | 13,836,132 |
| 2055 | 5,904,352 | 13,706,113 |
| 2054 | 5,894,795 | 13,579,802 |
| 2053 | 5,884,875 | 13,444,465 |
| 2052 | 5,876,162 | 13,303,409 |
| 2051 | 5,864,176 | 13,156,370 |
| 2050 | 5,852,896 | 13,010,109 |
| 2049 | 5,844,165 | 12,867,021 |
| 2048 | 5,833,178 | 12,716,015 |
| 2047 | 5,822,035 | 12,570,250 |
| 2046 | 5,809,860 | 12,414,307 |
| 2045 | 5,795,785 | 12,257,874 |
| 2044 | 5,780,884 | 12,092,075 |
| 2043 | 5,764,579 | 11,931,531 |
| 2042 | 5,746,528 | 11,770,467 |
| 2041 | 5,727,253 | 11,602,993 |
| 2040 | 5,708,874 | 11,431,337 |
| 2039 | 5,690,018 | 11,262,807 |
| 2038 | 5,669,959 | 11,100,099 |
| 2037 | 5,650,253 | 10,931,629 |
| 2036 | 5,630,126 | 10,760,758 |
| 2035 | 5,609,155 | 10,585,702 |
| 2034 | 5,588,315 | 10,413,826 |
| 2033 | 5,565,507 | 10,241,196 |
| 2032 | 5,542,488 | 10,062,575 |
| 2031 | 5,517,391 | 9,883,708 |
| 2030 | 5,491,320 | 9,708,038 |
| 2029 | 5,462,926 | 9,532,000 |
| 2028 | 5,432,752 | 9,360,873 |
| 2027 | 5,399,898 | 9,179,702 |
| 2026 | 5,364,771 | 9,001,269 |
| 2025 | 5,327,462 | 8,822,114 |
| 2024 | 5,287,500 | 8,642,022 |
| 2023 | 5,200,000 | 8,460,512 |
| 2022 | 5,081,700 | 8,276,807 |
| 2021 | 5,084,600 | 8,094,602 |
| 2020 | 5,072,400 | 7,912,558 |
| 2019 | 4,970,300 | 7,731,991 |
| 2018 | 4,900,600 | 7,554,563 |
| 2017 | 4,813,600 | 7,379,299 |
| 2016 | 4,714,100 | 7,205,328 |
| 2015 | 4,609,400 | 7,037,655 |
| 2014 | 4,516,500 | 6,876,385 |
| 2013 | 4,442,100 | 6,714,051 |
| 2012 | 4,408,100 | 6,551,080 |
| 2011 | 4,384,000 | 6,387,251 |
| 2010 | 4,350,700 | 6,222,714 |
| 2009 | 4,302,600 | 6,055,646 |
| 2008 | 4,259,800 | 5,894,722 |
| 2007 | 4,223,800 | 5,749,352 |
| 2006 | 4,184,600 | 5,624,466 |
| 2005 | 4,133,900 | 5,501,712 |
| 2004 | 4,087,500 | 5,355,717 |
| 2003 | 4,027,200 | 5,177,687 |
| 2002 | 3,948,500 | 4,971,435 |
| 2001 | 3,880,500 | 4,692,716 |
| 2000 | 3,857,700 | 4,423,611 |
| 1999 | 3,835,100 | 4,318,043 |
| 1998 | 3,815,000 | 4,295,785 |
| 1997 | 3,781,300 | 4,253,716 |
| 1996 | 3,732,000 | 4,199,210 |
| 1995 | 3,673,400 | 4,179,179 |
| 1994 | 3,620,000 | 4,173,105 |
| 1993 | 3,572,200 | 4,157,130 |
| 1992 | 3,531,700 | 4,166,366 |
| 1991 | 3,495,100 | 4,246,267 |
| 1990 | 3,329,800 | 4,196,828 |
| 1989 | 3,299,200 | 4,034,037 |
| 1988 | 3,283,400 | 3,934,517 |
| 1987 | 3,274,400 | 3,829,718 |
| 1986 | 3,246,300 | 3,728,380 |
| 1985 | 3,247,100 | 3,638,438 |
| 1984 | 3,227,100 | 3,558,758 |
| 1983 | 3,199,300 | 3,481,646 |
| 1982 | 3,156,100 | 3,408,183 |
| 1981 | 3,124,900 | 3,338,940 |
| 1980 | 3,112,900 | 3,272,089 |
| 1979 | 3,109,000 | 3,207,499 |
| 1978 | 3,121,200 | 3,145,517 |
| 1977 | 3,120,200 | 3,085,354 |
| 1976 | 3,110,500 | 3,028,820 |
| 1975 | 3,083,100 | 2,974,657 |
| 1974 | 3,023,700 | 2,920,459 |
| 1973 | 2,961,300 | 2,866,955 |
| 1972 | 2,903,900 | 2,814,388 |
| 1971 | 2,853,000 | 2,763,222 |
| 1970 | 2,810,700 | 2,712,286 |
| 1969 | 2,772,800 | 2,661,365 |
| 1968 | 2,748,100 | 2,611,532 |
| 1967 | 2,724,100 | 2,562,384 |
| 1966 | 2,675,900 | 2,514,638 |
| 1965 | 2,628,400 | 2,468,666 |
| 1964 | 2,585,400 | 2,424,390 |
| 1963 | 2,531,800 | 2,382,258 |
| 1962 | 2,482,000 | 2,342,242 |
| 1961 | 2,419,700 | 2,304,227 |
| 1960 | 2,371,800 | 2,268,356 |
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/new-zealand/sierra-leone | CC BY 
From 2006 to 2016, the population of New Zealand increased by 529,500 people (a 12.7% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).
For the next 10 years, from 2016 to 2026, New Zealand gained 660,172 people (a 14% growth), while Sierra Leone's population increased by 1,844,205 people (a 25.6% growth).
New Zealand was ranked 122nd most populous country in 2006 and is 124th in 2026. Sierra Leone was ranked 106th in 2006 and ranked 101st now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) New Zealand's population will grow by 8.91% to 5,852,896 people with a rank change from 124th to 122nd. The population of Sierra Leone will increase by 43.8% to 13,010,109 people and rank change from 101st to 91st.
New Zealand is projected to reach its peak in 2078 at 5.97M people compared to the peak of 16.2M people in 2093 for Sierra Leone.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
New Zealand
|
Sierra Leone
|
|
| 2100 | -0.07% | -0.09% |
| 2099 | -0.07% | -0.08% |
| 2098 | -0.05% | -0.09% |
| 2097 | -0.04% | -0.07% |
| 2096 | -0.03% | -0.05% |
| 2095 | -0.02% | 0.002% |
| 2094 | -0.04% | -0.03% |
| 2093 | -0.005% | 0.02% |
| 2092 | -0.03% | 0.04% |
| 2091 | -0.02% | 0.06% |
| 2090 | -0.05% | 0.07% |
| 2089 | -0.01% | 0.09% |
| 2088 | -0.05% | 0.1% |
| 2087 | -0.05% | 0.17% |
| 2086 | -0.06% | 0.13% |
| 2085 | -0.06% | 0.15% |
| 2084 | -0.08% | 0.21% |
| 2083 | -0.06% | 0.23% |
| 2082 | -0.03% | 0.25% |
| 2081 | -0.04% | 0.24% |
| 2080 | -0.02% | 0.26% |
| 2079 | -0.01% | 0.31% |
| 2078 | 0.02% | 0.32% |
| 2077 | 0.007% | 0.35% |
| 2076 | 0.007% | 0.38% |
| 2075 | 0.02% | 0.35% |
| 2074 | 0.02% | 0.44% |
| 2073 | 0.07% | 0.45% |
| 2072 | 0.001% | 0.47% |
| 2071 | 0.01% | 0.51% |
| 2070 | 0.02% | 0.53% |
| 2069 | 0.03% | 0.59% |
| 2068 | 0.04% | 0.64% |
| 2067 | 0.07% | 0.65% |
| 2066 | 0.07% | 0.66% |
| 2065 | 0.06% | 0.66% |
| 2064 | 0.03% | 0.67% |
| 2063 | 0.07% | 0.77% |
| 2062 | 0.02% | 0.73% |
| 2061 | 0.06% | 0.79% |
| 2060 | 0.08% | 0.79% |
| 2059 | 0.09% | 0.84% |
| 2058 | 0.1% | 0.86% |
| 2057 | 0.11% | 0.9% |
| 2056 | 0.15% | 0.95% |
| 2055 | 0.16% | 0.93% |
| 2054 | 0.17% | 1.01% |
| 2053 | 0.15% | 1.06% |
| 2052 | 0.2% | 1.12% |
| 2051 | 0.19% | 1.12% |
| 2050 | 0.15% | 1.11% |
| 2049 | 0.19% | 1.19% |
| 2048 | 0.19% | 1.16% |
| 2047 | 0.21% | 1.26% |
| 2046 | 0.24% | 1.28% |
| 2045 | 0.26% | 1.37% |
| 2044 | 0.28% | 1.35% |
| 2043 | 0.31% | 1.37% |
| 2042 | 0.34% | 1.44% |
| 2041 | 0.32% | 1.5% |
| 2040 | 0.33% | 1.5% |
| 2039 | 0.35% | 1.47% |
| 2038 | 0.35% | 1.54% |
| 2037 | 0.36% | 1.59% |
| 2036 | 0.37% | 1.65% |
| 2035 | 0.37% | 1.65% |
| 2034 | 0.41% | 1.69% |
| 2033 | 0.42% | 1.78% |
| 2032 | 0.45% | 1.81% |
| 2031 | 0.47% | 1.81% |
| 2030 | 0.52% | 1.85% |
| 2029 | 0.56% | 1.83% |
| 2028 | 0.61% | 1.97% |
| 2027 | 0.65% | 1.98% |
| 2026 | 0.7% | 2.03% |
| 2025 | 0.76% | 2.08% |
| 2024 | 1.68% | 2.15% |
| 2023 | 2.33% | 2.22% |
| 2022 | -0.06% | 2.25% |
| 2021 | 0.24% | 2.3% |
| 2020 | 2.05% | 2.34% |
| 2019 | 1.42% | 2.35% |
| 2018 | 1.81% | 2.38% |
| 2017 | 2.11% | 2.41% |
| 2016 | 2.27% | 2.38% |
| 2015 | 2.06% | 2.35% |
| 2014 | 1.67% | 2.42% |
| 2013 | 0.77% | 2.49% |
| 2012 | 0.55% | 2.56% |
| 2011 | 0.77% | 2.64% |
| 2010 | 1.12% | 2.76% |
| 2009 | 1% | 2.73% |
| 2008 | 0.85% | 2.53% |
| 2007 | 0.94% | 2.22% |
| 2006 | 1.23% | 2.23% |
| 2005 | 1.14% | 2.73% |
| 2004 | 1.5% | 3.44% |
| 2003 | 1.99% | 4.15% |
| 2002 | 1.75% | 5.94% |
| 2001 | 0.59% | 6.08% |
| 2000 | 0.59% | 2.44% |
| 1999 | 0.53% | 0.52% |
| 1998 | 0.89% | 0.99% |
| 1997 | 1.32% | 1.3% |
| 1996 | 1.6% | 0.48% |
| 1995 | 1.48% | 0.15% |
| 1994 | 1.34% | 0.38% |
| 1993 | 1.15% | -0.22% |
| 1992 | 1.05% | -1.88% |
| 1991 | 4.96% | 1.18% |
| 1990 | 0.93% | 4.04% |
| 1989 | 0.48% | 2.53% |
| 1988 | 0.27% | 2.74% |
| 1987 | 0.87% | 2.72% |
| 1986 | -0.02% | 2.47% |
| 1985 | 0.62% | 2.24% |
| 1984 | 0.87% | 2.21% |
| 1983 | 1.37% | 2.16% |
| 1982 | 1% | 2.07% |
| 1981 | 0.39% | 2.04% |
| 1980 | 0.13% | 2.01% |
| 1979 | -0.39% | 1.97% |
| 1978 | 0.03% | 1.95% |
| 1977 | 0.31% | 1.87% |
| 1976 | 0.89% | 1.82% |
| 1975 | 1.96% | 1.86% |
| 1974 | 2.11% | 1.87% |
| 1973 | 1.98% | 1.87% |
| 1972 | 1.78% | 1.85% |
| 1971 | 1.5% | 1.88% |
| 1970 | 1.37% | 1.91% |
| 1969 | 0.9% | 1.91% |
| 1968 | 0.88% | 1.92% |
| 1967 | 1.8% | 1.9% |
| 1966 | 1.81% | 1.86% |
| 1965 | 1.66% | 1.83% |
| 1964 | 2.12% | 1.77% |
| 1963 | 2.01% | 1.71% |
| 1962 | 2.57% | 1.65% |
| 1961 | 2.02% | 1.58% |
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/new-zealand/sierra-leone | CC BY
In 2024, the population of New Zealand grew by 1.68%, while Sierra Leone's population grew by 2.15%.
Live population counters
|
New Zealand
|
Sierra Leone
|
|
|---|---|---|
| Current population |
5374272
|
9049533
|
| Population rank | 124/197 | 101/197 |
| Percent of world population | 0.06% | 0.11% |
| One net population change |
6.01 minutes
|
2.9 minutes
|
| One birth every |
9.31 minutes
|
2.03 minutes
|
| One death every |
14 minutes
|
7.5 minutes
|
| Daily growth/decline | +240 | +497 |
| Annual growth/decline | +87,500 | +181,510 |
| Annual growth/decline rate | +1.68% | +2.15% |
| Population growth rate rank | 65/197 | 47/197 |
| One migration net change every |
30.3 minutes
|
46.6 minutes
|
| Annual migration change | +17,403 | -11,309 |
| Net migration rank | 35/196 | 136/196 |
| Foreign-born residents | 1,467,989 | 49,997 |
| Foreign-born residents rank | 45/195 | 151/195 |
| Foreign-born share of population | 28.2% | 0.6% |
| Foreign-born share rank | 20/195 | 174/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
New Zealand
|
Sierra Leone
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | 17,403 | - | -11,309 |
| 2024 | - | 18,766 | - | -11,000 |
| 2023 | 18,876 | 21,404 | 188,788 | -4,000 |
| 2022 | 20,123 | 21,404 | 186,625 | -4,000 |
| 2021 | 23,644 | -14,944 | 183,326 | -1,544 |
| 2020 | 24,905 | 42,124 | 181,015 | 1,292 |
| 2019 | 25,299 | 69,770 | 181,068 | -2,238 |
| 2018 | 24,797 | 59,139 | 178,772 | -2,741 |
| 2017 | 26,282 | 68,349 | 173,259 | 1,234 |
| 2016 | 28,237 | 75,512 | 168,784 | 4,657 |
| 2015 | 29,408 | 70,870 | 162,275 | -356 |
| 2014 | 26,196 | 57,974 | 160,137 | 485 |
| 2013 | 29,096 | 26,385 | 161,265 | 2,773 |
| 2012 | 31,077 | -1,015 | 160,915 | 988 |
| 2011 | 31,302 | -2,196 | 158,858 | 6,895 |
| 2010 | 35,458 | 6,722 | 155,338 | 7,983 |
| 2009 | 33,560 | 12,700 | 152,669 | 18,145 |
| 2008 | 35,143 | 4,804 | 149,855 | 1,182 |
| 2007 | 35,480 | 3,053 | 145,740 | -6,042 |
| 2006 | 30,924 | 14,542 | 144,127 | -34,052 |
| 2005 | 30,674 | 19,212 | 137,234 | -1,805 |
| 2004 | 29,634 | 24,521 | 132,661 | 23,897 |
| 2003 | 28,150 | 42,456 | 130,312 | 69,185 |
| 2002 | 25,941 | 48,195 | 126,429 | 86,578 |
| 2001 | 27,939 | 17,793 | 116,647 | 227,791 |
| 2000 | 29,897 | -6,604 | 110,754 | 83,013 |
| 1999 | 28,916 | -7,634 | 102,295 | -84,926 |
| 1998 | 29,146 | -1,387 | 103,906 | -76,766 |
| 1997 | 30,137 | 12,040 | 105,433 | -48,437 |
| 1996 | 28,997 | 25,169 | 104,140 | -52,110 |
| 1995 | 29,828 | 26,743 | 100,885 | -112,857 |
| 1994 | 30,372 | 20,420 | 101,486 | -77,371 |
| 1993 | 31,685 | 12,638 | 103,317 | -95,476 |
| 1992 | 32,067 | 6,460 | 103,251 | -129,565 |
| 1991 | 33,518 | 31,156 | 105,477 | -238,965 |
| 1990 | 33,298 | 70,432 | 100,778 | 131,587 |
| 1989 | 30,749 | -8,818 | 98,298 | -5,079 |
| 1988 | 29,846 | -17,005 | 96,344 | 9,470 |
| 1987 | 27,603 | -7,631 | 94,235 | 9,558 |
| 1986 | 25,549 | -10,234 | 90,902 | 7,992 |
| 1985 | 24,126 | -13,462 | 88,869 | -7,873 |
| 1984 | 26,043 | -901 | 87,072 | -8,708 |
| 1983 | 24,315 | 11,464 | 84,628 | -8,783 |
| 1982 | 24,207 | 7,982 | 82,457 | -11,379 |
| 1981 | 25,374 | -7,606 | 80,111 | -12,699 |
| 1980 | 23,658 | -15,423 | 77,932 | -11,641 |
| 1979 | 26,675 | -26,694 | 75,992 | -13,095 |
| 1978 | 26,156 | -28,783 | 74,130 | -13,073 |
| 1977 | 28,020 | -22,697 | 71,663 | -12,399 |
| 1976 | 29,456 | -9,138 | 69,506 | -15,686 |
| 1975 | 31,355 | 13,196 | 67,560 | -13,058 |
| 1974 | 33,896 | 27,580 | 65,357 | -11,473 |
| 1973 | 35,239 | 28,261 | 62,443 | -9,322 |
| 1972 | 38,244 | 17,779 | 60,279 | -8,267 |
| 1971 | 40,000 | 7,547 | 58,484 | -8,162 |
| 1970 | 37,101 | 4,511 | 56,513 | -4,957 |
| 1969 | 38,098 | -5,212 | 54,768 | -4,485 |
| 1968 | 37,594 | -11,853 | 53,126 | -3,743 |
| 1967 | 37,974 | -2,289 | 51,734 | -2,819 |
| 1966 | 36,151 | 9,161 | 49,486 | -2,911 |
| 1965 | 36,982 | 9,245 | 47,223 | -1,851 |
| 1964 | 39,375 | 9,806 | 45,487 | -2,308 |
| 1963 | 42,027 | 10,226 | 43,569 | -2,480 |
| 1962 | 42,865 | 12,697 | 41,603 | -2,658 |
| 1961 | 43,482 | 10,689 | 40,022 | -2,947 |
| 1960 | 41,791 | 3,846 | 38,192 | -3,528 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).
GeoRank.org/population/new-zealand/sierra-leone | CC BY
Over the last 10 years, 34.4% of the population change in New Zealand is from natural causes (a gain of 247,767 people) and 65.6% is from migration (a gain of 471,602 people). In Sierra Leone 99.6% is from natural causes (a gain of 1,764,049 people) and 0.41% is from migration (a loss of 7,211 people).
As of 2024, 1,467,989 residents or 28.2% of the population were not native-born in New Zealand, compared to 49,997 people or 0.6% in Sierra Leone.
Biggest cities by population
|
New Zealand
|
|
|---|---|
| City | Population |
| Auckland | 1.47M |
| Christchurch | 383K |
| Wellington | 216K |
| Hamilton | 176K |
| Tauranga | 151K |
| Dunedin | 106K |
| Lower Hutt | 103K |
| Palmerston North | 81.5K |
| Napier | 66.3K |
| Hibiscus Coast | 59.8K |
|
Sierra Leone
|
|
|---|---|
| City | Population |
| Freetown | 951K |
| Bo | 234K |
| Kenema | 188K |
Compare countries by 7 more topics
Population differences between New Zealand and Sierra Leone
|
New Zealand
|
Sierra Leone
|
|
|---|---|---|
| Life expectancy | 82.5 years | 62.3 years |
| Average age | 39.8 years | 24.4 years |
| Median age | 38.6 years | 20.5 years |
| Male:Female ratio | 49.7:50.3 | 49.9:50.1 |
| Fertility rate | 1.56 births per woman | 3.79 births per woman |
| Population density | 52.8 ppl/mi² | 323 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/new-zealand/sierra-leone | 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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