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

Updated on by Georank

The latest officially reported population of Algeria was 47,435,312 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current Algeria's population is 48,345,858 people compared to 9,090,531 in Sierra Leone.

Population statistics:

  • Algeria's population is 5.32 times bigger than Sierra Leone's.
  • Algeria is ranked the 34th most populous country in the world, while Sierra Leone is the 100th.
  • The countries together account for 0.69% of the world: 0.58% for Algeria vs 0.11% for Sierra Leone.
  • For the last 10 years, Algeria has had an average growth rate of +1.75% per year vs +2.29% in Sierra Leone.
  • Since 2006, the population of Algeria has increased from 33.6M people to 48.3M (43.8% growth), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).

Algeria vs Sierra Leone: population by year and forecast

Algeria
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Algeria Sierra Leone
2100 64,963,450 16,107,087
2099 65,075,244 16,121,940
2098 65,177,248 16,135,035
2097 65,262,264 16,149,905
2096 65,339,404 16,160,672
2095 65,400,924 16,169,304
2094 65,457,659 16,168,902
2093 65,486,594 16,173,609
2092 65,514,575 16,170,778
2091 65,536,206 16,163,901
2090 65,534,162 16,154,165
2089 65,536,151 16,142,526
2088 65,519,144 16,128,775
2087 65,494,168 16,112,585
2086 65,455,745 16,085,549
2085 65,411,808 16,064,212
2084 65,365,401 16,040,563
2083 65,315,151 16,006,923
2082 65,262,527 15,970,872
2081 65,204,172 15,930,880
2080 65,131,995 15,892,665
2079 65,053,592 15,850,728
2078 64,973,632 15,801,450
2077 64,887,885 15,750,408
2076 64,805,016 15,695,310
2075 64,708,752 15,635,345
2074 64,611,374 15,580,279
2073 64,515,111 15,512,655
2072 64,413,784 15,442,481
2071 64,310,442 15,370,747
2070 64,230,683 15,293,426
2069 64,132,724 15,212,664
2068 64,030,989 15,124,069
2067 63,923,427 15,028,190
2066 63,810,251 14,931,295
2065 63,687,208 14,833,794
2064 63,550,779 14,736,872
2063 63,412,160 14,638,180
2062 63,250,420 14,525,736
2061 63,086,423 14,420,068
2060 62,900,355 14,307,451
2059 62,689,379 14,194,972
2058 62,454,967 14,077,124
2057 62,203,082 13,957,197
2056 61,916,006 13,832,494
2055 61,612,550 13,702,508
2054 61,282,973 13,576,231
2053 60,929,515 13,440,929
2052 60,562,817 13,299,910
2051 60,161,555 13,152,910
2050 59,737,427 13,006,688
2049 59,297,226 12,863,637
2048 58,841,142 12,712,671
2047 58,377,907 12,566,944
2046 57,902,123 12,411,042
2045 57,416,731 12,254,651
2044 56,927,927 12,088,895
2043 56,437,286 11,928,393
2042 55,951,600 11,767,372
2041 55,465,931 11,599,942
2040 54,988,407 11,428,331
2039 54,505,331 11,259,845
2038 54,033,480 11,097,180
2037 53,561,143 10,928,754
2036 53,094,449 10,757,928
2035 52,616,136 10,582,918
2034 52,150,833 10,411,088
2033 51,682,632 10,238,503
2032 51,203,273 10,059,929
2031 50,724,222 9,881,109
2030 50,230,658 9,705,485
2029 49,720,218 9,529,493
2028 49,184,244 9,358,412
2027 48,629,000 9,177,288
2026 48,046,811 8,998,902
2025 47,435,312 8,819,794
2024 46,814,308 8,642,022
2023 46,164,219 8,460,512
2022 45,477,389 8,276,807
2021 44,761,099 8,094,602
2020 44,042,091 7,912,558
2019 43,294,546 7,731,991
2018 42,505,035 7,554,563
2017 41,689,299 7,379,299
2016 40,850,721 7,205,328
2015 40,019,529 7,037,655
2014 39,205,031 6,876,385
2013 38,414,171 6,714,051
2012 37,646,166 6,551,080
2011 36,903,376 6,387,251
2010 36,188,236 6,222,714
2009 35,490,445 6,055,646
2008 34,816,961 5,894,722
2007 34,189,416 5,749,352
2006 33,623,506 5,624,466
2005 33,109,249 5,501,712
2004 32,628,286 5,355,717
2003 32,175,818 5,177,687
2002 31,750,835 4,971,435
2001 31,331,221 4,692,716
2000 30,903,893 4,423,611
1999 30,474,354 4,318,043
1998 30,054,133 4,295,785
1997 29,579,301 4,253,716
1996 29,033,044 4,199,210
1995 28,470,191 4,179,179
1994 27,887,279 4,173,105
1993 27,277,048 4,157,130
1992 26,628,568 4,166,366
1991 25,987,928 4,246,267
1990 25,375,810 4,196,828
1989 24,754,485 4,034,037
1988 24,109,536 3,934,517
1987 23,443,624 3,829,718
1986 22,745,499 3,728,380
1985 22,008,544 3,638,438
1984 21,271,969 3,558,758
1983 20,558,115 3,481,646
1982 19,872,348 3,408,183
1981 19,220,704 3,338,940
1980 18,607,174 3,272,089
1979 18,036,655 3,207,499
1978 17,506,974 3,145,517
1977 17,015,994 3,085,354
1976 16,409,170 3,028,820
1975 15,678,596 2,974,657
1974 15,133,502 2,920,459
1973 14,771,147 2,866,955
1972 14,427,072 2,814,388
1971 14,098,936 2,763,222
1970 13,783,719 2,712,286
1969 13,475,960 2,661,365
1968 13,172,614 2,611,532
1967 12,876,118 2,562,384
1966 12,590,069 2,514,638
1965 12,365,976 2,468,666
1964 12,179,813 2,424,390
1963 11,982,118 2,382,258
1962 11,800,771 2,342,242
1961 11,628,883 2,304,227
1960 11,424,922 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/algeria/sierra-leone | CC BY

From 2006 to 2016, the population of Algeria increased by 7,227,215 people (a 21.5% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Algeria gained 7,495,137 people (a 18.3% growth), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).

Algeria was ranked 34th most populous country in 2006 and is still 34th 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) Algeria's population will grow by 23.6% to 59,737,427 people with a rank change from 34th to 33rd. The population of Sierra Leone will increase by 43.1% to 13,006,688 people and rank change from 100th to 91st.

Algeria is projected to reach its peak in 2091 at 65.5M people compared to the peak of 16.2M people in 2093 for Sierra Leone.

Population growth rate by year

Algeria
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Algeria Sierra Leone
2100 -0.17% -0.09%
2099 -0.16% -0.08%
2098 -0.13% -0.09%
2097 -0.12% -0.07%
2096 -0.09% -0.05%
2095 -0.09% 0.002%
2094 -0.04% -0.03%
2093 -0.04% 0.02%
2092 -0.03% 0.04%
2091 0.003% 0.06%
2090 -0.003% 0.07%
2089 0.03% 0.09%
2088 0.04% 0.1%
2087 0.06% 0.17%
2086 0.07% 0.13%
2085 0.07% 0.15%
2084 0.08% 0.21%
2083 0.08% 0.23%
2082 0.09% 0.25%
2081 0.11% 0.24%
2080 0.12% 0.26%
2079 0.12% 0.31%
2078 0.13% 0.32%
2077 0.13% 0.35%
2076 0.15% 0.38%
2075 0.15% 0.35%
2074 0.15% 0.44%
2073 0.16% 0.45%
2072 0.16% 0.47%
2071 0.12% 0.51%
2070 0.15% 0.53%
2069 0.16% 0.59%
2068 0.17% 0.64%
2067 0.18% 0.65%
2066 0.19% 0.66%
2065 0.21% 0.66%
2064 0.22% 0.67%
2063 0.26% 0.77%
2062 0.26% 0.73%
2061 0.3% 0.79%
2060 0.34% 0.79%
2059 0.38% 0.84%
2058 0.4% 0.86%
2057 0.46% 0.9%
2056 0.49% 0.95%
2055 0.54% 0.93%
2054 0.58% 1.01%
2053 0.61% 1.06%
2052 0.67% 1.12%
2051 0.71% 1.12%
2050 0.74% 1.11%
2049 0.78% 1.19%
2048 0.79% 1.16%
2047 0.82% 1.26%
2046 0.85% 1.28%
2045 0.86% 1.37%
2044 0.87% 1.35%
2043 0.87% 1.37%
2042 0.88% 1.44%
2041 0.87% 1.5%
2040 0.89% 1.5%
2039 0.87% 1.47%
2038 0.88% 1.54%
2037 0.88% 1.59%
2036 0.91% 1.65%
2035 0.89% 1.65%
2034 0.91% 1.69%
2033 0.94% 1.78%
2032 0.94% 1.81%
2031 0.98% 1.81%
2030 1.03% 1.85%
2029 1.09% 1.83%
2028 1.14% 1.97%
2027 1.21% 1.98%
2026 1.29% 2.03%
2025 1.33% 2.06%
2024 1.41% 2.15%
2023 1.51% 2.22%
2022 1.6% 2.25%
2021 1.63% 2.3%
2020 1.73% 2.34%
2019 1.86% 2.35%
2018 1.96% 2.38%
2017 2.05% 2.41%
2016 2.08% 2.38%
2015 2.08% 2.35%
2014 2.06% 2.42%
2013 2.04% 2.49%
2012 2.01% 2.56%
2011 1.98% 2.64%
2010 1.97% 2.76%
2009 1.93% 2.73%
2008 1.84% 2.53%
2007 1.68% 2.22%
2006 1.55% 2.23%
2005 1.47% 2.73%
2004 1.41% 3.44%
2003 1.34% 4.15%
2002 1.34% 5.94%
2001 1.38% 6.08%
2000 1.41% 2.44%
1999 1.4% 0.52%
1998 1.61% 0.99%
1997 1.88% 1.3%
1996 1.98% 0.48%
1995 2.09% 0.15%
1994 2.24% 0.38%
1993 2.44% -0.22%
1992 2.47% -1.88%
1991 2.41% 1.18%
1990 2.51% 4.04%
1989 2.68% 2.53%
1988 2.84% 2.74%
1987 3.07% 2.72%
1986 3.35% 2.47%
1985 3.46% 2.24%
1984 3.47% 2.21%
1983 3.45% 2.16%
1982 3.39% 2.07%
1981 3.3% 2.04%
1980 3.16% 2.01%
1979 3.03% 1.97%
1978 2.89% 1.95%
1977 3.7% 1.87%
1976 4.66% 1.82%
1975 3.6% 1.86%
1974 2.45% 1.87%
1973 2.38% 1.87%
1972 2.33% 1.85%
1971 2.29% 1.88%
1970 2.28% 1.91%
1969 2.3% 1.91%
1968 2.3% 1.92%
1967 2.27% 1.9%
1966 1.81% 1.86%
1965 1.53% 1.83%
1964 1.65% 1.77%
1963 1.54% 1.71%
1962 1.48% 1.65%
1961 1.79% 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/algeria/sierra-leone | CC BY

In 2025, the population of Algeria grew by 1.33%, while Sierra Leone's population grew by 2.06%.

Live population counters

Algeria Sierra Leone
Current population
48345858
9090531
Population rank 34/197 100/197
Percent of world population 0.58% 0.11%
One net population change
50.9 seconds
2.96 minutes
One birth every
35.8 seconds
2.02 minutes
One death every
2.43 minutes
7.41 minutes
Daily growth/decline +1,701 +487
Annual growth/decline +621,004 +177,772
Annual growth/decline rate +1.33% +2.06%
Population growth rate rank 77/197 47/197
One migration net change every
19.1 minutes
46.6 minutes
Annual migration change -27,531 -11,309
Net migration rank 161/196 136/196
Foreign-born residents 259,458 49,997
Foreign-born residents rank 104/195 151/195
Foreign-born share of population 0.6% 0.6%
Foreign-born share rank 168/195 174/195

Natural population change vs migration

Algeria
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Algeria Sierra Leone
Natural Migration Natural Migration
2025 - -27,531 - -11,309
2024 665,653 -31,240 189,234 -11,000
2023 691,724 -25,963 188,788 -4,000
2022 722,591 -14,684 186,625 -4,000
2021 735,514 -10,803 183,326 -1,544
2020 724,140 -10,798 181,015 1,292
2019 809,522 -27,786 181,068 -2,238
2018 824,428 -27,146 178,772 -2,741
2017 848,585 -14,403 173,259 1,234
2016 849,368 -6,438 168,784 4,657
2015 847,054 -27,638 162,275 -356
2014 839,654 -30,064 160,137 485
2013 802,203 -30,052 161,265 2,773
2012 790,645 -26,763 160,915 988
2011 741,832 -20,108 158,858 6,895
2010 719,350 -10,788 155,338 7,983
2009 691,496 -4,458 152,669 18,145
2008 662,044 -2,101 149,855 1,182
2007 620,196 -25,046 145,740 -6,042
2006 580,812 -44,138 144,127 -34,052
2005 543,158 -51,345 137,234 -1,805
2004 508,773 -38,648 132,661 23,897
2003 474,272 -39,421 130,312 69,185
2002 451,369 -36,255 126,429 86,578
2001 450,637 -26,539 116,647 227,791
2000 447,025 -16,454 110,754 83,013
1999 434,198 -5,657 102,295 -84,926
1998 425,928 -13,991 103,906 -76,766
1997 450,138 87,582 105,433 -48,437
1996 483,632 71,139 104,140 -52,110
1995 533,104 37,817 100,885 -112,857
1994 594,445 430 101,486 -77,371
1993 611,306 14,289 103,317 -95,476
1992 627,289 44,102 103,251 -129,565
1991 616,850 -6,945 105,477 -238,965
1990 612,369 1,962 100,778 131,587
1989 628,542 -234 98,298 -5,079
1988 637,215 24,376 96,344 9,470
1987 645,309 24,933 94,235 9,558
1986 661,644 64,381 90,902 7,992
1985 672,185 75,729 88,869 -7,873
1984 656,475 68,774 87,072 -8,708
1983 641,167 61,292 84,628 -8,783
1982 620,415 48,660 82,457 -11,379
1981 595,150 39,043 80,111 -12,699
1980 559,983 32,879 77,932 -11,641
1979 523,875 24,311 75,992 -13,095
1978 491,876 19,317 74,130 -13,073
1977 465,405 5,360 71,663 -12,399
1976 440,192 302,662 69,506 -15,686
1975 417,803 300,482 67,560 -13,058
1974 399,509 -27,605 65,357 -11,473
1973 382,736 -29,938 62,443 -9,322
1972 368,179 -32,832 60,279 -8,267
1971 356,069 -35,141 58,484 -8,162
1970 346,564 -37,058 56,513 -4,957
1969 334,541 -28,535 54,768 -4,485
1968 324,560 -23,870 53,126 -3,743
1967 316,289 -23,983 51,734 -2,819
1966 309,628 -29,832 49,486 -2,911
1965 311,190 -142,810 47,223 -1,851
1964 312,729 -108,798 45,487 -2,308
1963 315,645 -124,175 43,569 -2,480
1962 283,903 -112,676 41,603 -2,658
1961 296,467 -123,928 40,022 -2,947
1960 290,582 -55,212 38,192 -3,528

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

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

Over the last 10 years, 97.5% of the population change in Algeria is from natural causes (a gain of 7,718,579 people) and 2.49% is from migration (a loss of 196,899 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, 259,458 residents or 0.6% of the population were not native-born in Algeria, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Algeria
City Population
Algiers 2.36M
Oran 803K
Constantine 465K
Batna 291K
Setif 288K
Djelfa 266K
Annaba 257K
Sidi Bel Abbes 213K
Biskra 205K
Tebessa 194K
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 (1960–2025, 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/algeria/sierra-leone | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  5. Wikidata (2026, retrieved 2026-07-08)

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