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Population in Australia compared to Sierra Leone: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Australia was 27,196,812 in 2024 vs 8,642,022 people in Sierra Leone in 2024. In 2026, based on the adjusted UN estimation, the current Australia's population is 27,799,169 people compared to 9,049,533 in Sierra Leone.

Population statistics:

  • Australia's population is 3.07 times bigger than Sierra Leone's.
  • Australia is ranked the 55th most populous country in the world, while Sierra Leone is the 101st.
  • The countries together account for 0.44% of the world: 0.34% for Australia vs 0.11% for Sierra Leone.
  • For the last 10 years, Australia has had an average growth rate of +1.49% per year vs +2.32% in Sierra Leone.
  • Since 2006, the population of Australia has increased from 20.5M people to 27.8M (35.9% growth), while Sierra Leone has grown from 5.62M to 9.05M (60.9% growth).

Australia vs Sierra Leone: population by year and forecast

Australia
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Australia Sierra Leone
2100 44,031,396 16,111,324
2099 43,809,392 16,126,181
2098 43,581,416 16,139,280
2097 43,339,542 16,154,153
2096 43,103,046 16,164,923
2095 42,875,281 16,173,557
2094 42,654,231 16,173,155
2093 42,420,140 16,177,864
2092 42,183,554 16,175,032
2091 41,942,760 16,168,153
2090 41,703,255 16,158,415
2089 41,471,675 16,146,773
2088 41,232,214 16,133,018
2087 41,005,392 16,116,823
2086 40,785,916 16,089,780
2085 40,573,592 16,068,438
2084 40,363,192 16,044,782
2083 40,140,606 16,011,134
2082 39,925,452 15,975,073
2081 39,703,018 15,935,071
2080 39,490,533 15,896,846
2079 39,277,415 15,854,898
2078 39,063,163 15,805,607
2077 38,847,269 15,754,551
2076 38,637,253 15,699,439
2075 38,425,571 15,639,458
2074 38,212,169 15,584,377
2073 38,002,408 15,516,736
2072 37,795,438 15,446,543
2071 37,589,598 15,374,790
2070 37,376,868 15,297,449
2069 37,159,014 15,216,666
2068 36,939,616 15,128,048
2067 36,721,604 15,032,144
2066 36,504,952 14,935,222
2065 36,297,175 14,837,697
2064 36,095,981 14,740,749
2063 35,883,588 14,642,031
2062 35,673,924 14,529,557
2061 35,465,080 14,423,861
2060 35,260,552 14,311,215
2059 35,055,719 14,198,706
2058 34,839,385 14,080,827
2057 34,630,577 13,960,869
2056 34,422,531 13,836,132
2055 34,208,970 13,706,113
2054 33,996,776 13,579,802
2053 33,788,097 13,444,465
2052 33,580,016 13,303,409
2051 33,366,925 13,156,370
2050 33,152,099 13,010,109
2049 32,937,633 12,867,021
2048 32,711,001 12,716,015
2047 32,496,856 12,570,250
2046 32,269,549 12,414,307
2045 32,047,969 12,257,874
2044 31,829,535 12,092,075
2043 31,610,306 11,931,531
2042 31,387,780 11,770,467
2041 31,168,179 11,602,993
2040 30,952,283 11,431,337
2039 30,740,454 11,262,807
2038 30,521,772 11,100,099
2037 30,307,856 10,931,629
2036 30,085,861 10,760,758
2035 29,862,898 10,585,702
2034 29,641,453 10,413,826
2033 29,418,053 10,241,196
2032 29,191,922 10,062,575
2031 28,959,421 9,883,708
2030 28,722,798 9,708,038
2029 28,484,745 9,532,000
2028 28,236,324 9,360,873
2027 27,984,287 9,179,702
2026 27,730,530 9,001,269
2025 27,466,430 8,822,114
2024 27,196,812 8,642,022
2023 26,659,922 8,460,512
2022 26,018,721 8,276,807
2021 25,685,412 8,094,602
2020 25,649,248 7,912,558
2019 25,334,826 7,731,991
2018 24,963,258 7,554,563
2017 24,592,588 7,379,299
2016 24,190,907 7,205,328
2015 23,815,995 7,037,655
2014 23,475,686 6,876,385
2013 23,128,129 6,714,051
2012 22,733,465 6,551,080
2011 22,340,024 6,387,251
2010 22,031,750 6,222,714
2009 21,691,653 6,055,646
2008 21,249,199 5,894,722
2007 20,827,622 5,749,352
2006 20,450,966 5,624,466
2005 20,176,844 5,501,712
2004 19,932,722 5,355,717
2003 19,720,737 5,177,687
2002 19,495,210 4,971,435
2001 19,274,701 4,692,716
2000 19,028,802 4,423,611
1999 18,812,264 4,318,043
1998 18,607,584 4,295,785
1997 18,423,037 4,253,716
1996 18,224,767 4,199,210
1995 18,004,882 4,179,179
1994 17,805,468 4,173,105
1993 17,634,808 4,157,130
1992 17,478,635 4,166,366
1991 17,284,036 4,246,267
1990 17,065,128 4,196,828
1989 16,814,416 4,034,037
1988 16,532,164 3,934,517
1987 16,263,874 3,829,718
1986 16,018,350 3,728,380
1985 15,788,312 3,638,438
1984 15,579,391 3,558,758
1983 15,393,472 3,481,646
1982 15,184,247 3,408,183
1981 14,923,260 3,338,940
1980 14,692,000 3,272,089
1979 14,514,000 3,207,499
1978 14,358,000 3,145,517
1977 14,192,000 3,085,354
1976 14,033,000 3,028,820
1975 13,893,000 2,974,657
1974 13,723,000 2,920,459
1973 13,380,000 2,866,955
1972 13,177,000 2,814,388
1971 12,937,000 2,763,222
1970 12,507,000 2,712,286
1969 12,263,000 2,661,365
1968 12,009,000 2,611,532
1967 11,799,000 2,562,384
1966 11,651,000 2,514,638
1965 11,388,000 2,468,666
1964 11,167,000 2,424,390
1963 10,950,000 2,382,258
1962 10,742,000 2,342,242
1961 10,483,000 2,304,227
1960 10,276,477 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/australia/sierra-leone | CC BY

From 2006 to 2016, the population of Australia increased by 3,739,941 people (a 18.3% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Australia gained 3,608,262 people (a 14.9% growth), while Sierra Leone's population increased by 1,844,205 people (a 25.6% growth).

Australia was ranked 54th most populous country in 2006 and is 55th 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) Australia's population will grow by 19.3% to 33,152,099 people with a rank change from 55th to 59th. The population of Sierra Leone will increase by 43.8% to 13,010,109 people and rank change from 101st to 91st.

Australia is projected to reach its peak in 2100 at 44M people compared to the peak of 16.2M people in 2093 for Sierra Leone.

Population growth rate by year

Australia
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Australia Sierra Leone
2100 0.51% -0.09%
2099 0.52% -0.08%
2098 0.56% -0.09%
2097 0.55% -0.07%
2096 0.53% -0.05%
2095 0.52% 0.002%
2094 0.55% -0.03%
2093 0.56% 0.02%
2092 0.57% 0.04%
2091 0.57% 0.06%
2090 0.56% 0.07%
2089 0.58% 0.09%
2088 0.55% 0.1%
2087 0.54% 0.17%
2086 0.52% 0.13%
2085 0.52% 0.15%
2084 0.55% 0.21%
2083 0.54% 0.23%
2082 0.56% 0.25%
2081 0.54% 0.24%
2080 0.54% 0.26%
2079 0.55% 0.31%
2078 0.56% 0.32%
2077 0.54% 0.35%
2076 0.55% 0.38%
2075 0.56% 0.35%
2074 0.55% 0.44%
2073 0.55% 0.45%
2072 0.55% 0.47%
2071 0.57% 0.51%
2070 0.59% 0.53%
2069 0.59% 0.59%
2068 0.59% 0.64%
2067 0.59% 0.65%
2066 0.57% 0.66%
2065 0.56% 0.66%
2064 0.59% 0.67%
2063 0.59% 0.77%
2062 0.59% 0.73%
2061 0.58% 0.79%
2060 0.58% 0.79%
2059 0.62% 0.84%
2058 0.6% 0.86%
2057 0.6% 0.9%
2056 0.62% 0.95%
2055 0.62% 0.93%
2054 0.62% 1.01%
2053 0.62% 1.06%
2052 0.64% 1.12%
2051 0.65% 1.12%
2050 0.65% 1.11%
2049 0.69% 1.19%
2048 0.66% 1.16%
2047 0.7% 1.26%
2046 0.69% 1.28%
2045 0.69% 1.37%
2044 0.69% 1.35%
2043 0.71% 1.37%
2042 0.7% 1.44%
2041 0.7% 1.5%
2040 0.69% 1.5%
2039 0.72% 1.47%
2038 0.71% 1.54%
2037 0.74% 1.59%
2036 0.75% 1.65%
2035 0.75% 1.65%
2034 0.76% 1.69%
2033 0.77% 1.78%
2032 0.8% 1.81%
2031 0.82% 1.81%
2030 0.84% 1.85%
2029 0.88% 1.83%
2028 0.9% 1.97%
2027 0.92% 1.98%
2026 0.96% 2.03%
2025 0.99% 2.08%
2024 2.01% 2.15%
2023 2.46% 2.22%
2022 1.3% 2.25%
2021 0.14% 2.3%
2020 1.24% 2.34%
2019 1.49% 2.35%
2018 1.51% 2.38%
2017 1.66% 2.41%
2016 1.57% 2.38%
2015 1.45% 2.35%
2014 1.5% 2.42%
2013 1.74% 2.49%
2012 1.76% 2.56%
2011 1.4% 2.64%
2010 1.57% 2.76%
2009 2.08% 2.73%
2008 2.02% 2.53%
2007 1.84% 2.22%
2006 1.36% 2.23%
2005 1.22% 2.73%
2004 1.07% 3.44%
2003 1.16% 4.15%
2002 1.14% 5.94%
2001 1.29% 6.08%
2000 1.15% 2.44%
1999 1.1% 0.52%
1998 1% 0.99%
1997 1.09% 1.3%
1996 1.22% 0.48%
1995 1.12% 0.15%
1994 0.97% 0.38%
1993 0.89% -0.22%
1992 1.13% -1.88%
1991 1.28% 1.18%
1990 1.49% 4.04%
1989 1.71% 2.53%
1988 1.65% 2.74%
1987 1.53% 2.72%
1986 1.46% 2.47%
1985 1.34% 2.24%
1984 1.21% 2.21%
1983 1.38% 2.16%
1982 1.75% 2.07%
1981 1.57% 2.04%
1980 1.23% 2.01%
1979 1.09% 1.97%
1978 1.17% 1.95%
1977 1.13% 1.87%
1976 1.01% 1.82%
1975 1.24% 1.86%
1974 2.56% 1.87%
1973 1.54% 1.87%
1972 1.86% 1.85%
1971 3.44% 1.88%
1970 1.99% 1.91%
1969 2.12% 1.91%
1968 1.78% 1.92%
1967 1.27% 1.9%
1966 2.31% 1.86%
1965 1.98% 1.83%
1964 1.98% 1.77%
1963 1.94% 1.71%
1962 2.47% 1.65%
1961 2.01% 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/australia/sierra-leone | CC BY

In 2024, the population of Australia grew by 2.01%, while Sierra Leone's population grew by 2.15%.

Live population counters

Australia Sierra Leone
Current population
27799169
9049533
Population rank 55/197 101/197
Percent of world population 0.34% 0.11%
One net population change
58.7 seconds
2.9 minutes
One birth every
1.83 minutes
2.03 minutes
One death every
2.86 minutes
7.5 minutes
Daily growth/decline +1,471 +497
Annual growth/decline +536,890 +181,510
Annual growth/decline rate +2.01% +2.15%
Population growth rate rank 51/197 47/197
One migration net change every
3.84 minutes
46.6 minutes
Annual migration change +137,109 -11,309
Net migration rank 11/196 136/196
Foreign-born residents 8,111,404 49,997
Foreign-born residents rank 9/195 151/195
Foreign-born share of population 30.4% 0.6%
Foreign-born share rank 18/195 174/195

Natural population change vs migration

Australia
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Australia Sierra Leone
Natural Migration Natural Migration
2025 - 137,109 - -11,309
2024 - 138,510 - -11,000
2023 103,974 140,232 188,788 -4,000
2022 111,881 140,972 186,625 -4,000
2021 138,701 116,768 183,326 -1,544
2020 133,376 44,447 181,015 1,292
2019 136,808 207,142 181,068 -2,238
2018 157,269 226,412 178,772 -2,741
2017 150,015 255,023 173,259 1,234
2016 152,403 254,648 168,784 4,657
2015 150,041 212,350 162,275 -356
2014 154,940 200,177 160,137 485
2013 159,584 215,823 161,265 2,773
2012 161,408 235,776 160,915 988
2011 156,380 197,657 158,858 6,895
2010 158,628 166,752 155,338 7,983
2009 160,518 235,628 152,669 18,145
2008 155,119 275,773 149,855 1,182
2007 154,124 249,873 145,740 -6,042
2006 132,931 191,985 144,127 -34,052
2005 129,132 131,371 137,234 -1,805
2004 115,610 110,072 132,661 23,897
2003 118,325 104,437 130,312 69,185
2002 116,971 108,852 126,429 86,578
2001 117,575 117,552 116,647 227,791
2000 119,882 111,186 110,754 83,013
1999 118,517 92,900 102,295 -84,926
1998 120,949 81,310 103,906 -76,766
1997 121,592 67,661 105,433 -48,437
1996 125,751 82,965 104,140 -52,110
1995 131,436 80,456 100,885 -112,857
1994 131,761 51,941 101,486 -77,371
1993 137,551 23,833 103,317 -95,476
1992 139,829 40,767 103,251 -129,565
1991 138,273 68,847 105,477 -238,965
1990 143,347 100,093 100,778 131,587
1989 127,789 144,042 98,298 -5,079
1988 127,298 153,330 96,344 9,470
1987 128,484 136,421 94,235 9,558
1986 123,342 113,061 90,902 7,992
1985 143,674 98,327 88,869 -7,873
1984 123,077 79,617 87,072 -8,708
1983 130,844 73,251 84,628 -8,783
1982 126,030 111,722 82,457 -11,379
1981 125,356 121,921 80,111 -12,699
1980 117,536 89,189 77,932 -11,641
1979 116,112 52,137 75,992 -13,095
1978 116,299 45,832 74,130 -13,073
1977 117,793 44,946 71,663 -12,399
1976 115,070 32,792 69,506 -15,686
1975 123,648 25,336 67,560 -13,058
1974 128,996 56,167 65,357 -11,473
1973 136,476 62,928 62,443 -9,322
1972 155,488 54,895 60,279 -8,267
1971 165,593 223,991 58,484 -8,162
1970 145,081 256,295 56,513 -4,957
1969 143,477 108,770 54,768 -4,485
1968 132,099 100,963 53,126 -3,743
1967 126,249 80,904 51,734 -2,819
1966 126,996 110,864 49,486 -2,911
1965 122,990 118,891 47,223 -1,851
1964 128,420 91,588 45,487 -2,308
1963 140,161 73,237 43,569 -2,480
1962 143,943 58,315 41,603 -2,658
1961 150,955 64,495 40,022 -2,947
1960 141,816 85,707 38,192 -3,528

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

GeoRank.org/population/australia/sierra-leone | CC BY

Over the last 10 years, 43.6% of the population change in Australia is from natural causes (a gain of 1,389,408 people) and 56.4% is from migration (a gain of 1,798,171 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, 8,111,404 residents or 30.4% of the population were not native-born in Australia, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Australia
City Population
Sydney 5.45M
Melbourne 5.35M
Brisbane 2.71M
Perth 2.14M
Adelaide 1.39M
Gold Coast 608K
Canberra 381K
Sunshine Coast 284K
Wollongong 262K
Ipswich 233K
Sierra Leone
City Population
Freetown 951K
Bo 234K
Kenema 188K

Compare countries by 7 more topics

Population map with other countries

1x

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/australia/sierra-leone | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

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