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Niger vs Sao Tome and Principe statistics compared

Updated on by Georank team

Niger has a population of 27M (ranked 55/197), compared with 236K in Sao Tome and Principe (ranked 176/197). Niger's land area is 489,076 sq mi versus 371 sq mi for Sao Tome and Principe (ranked 20th vs. 172nd).

By GDP, Niger ranks 130/197 ($19.9B) and Sao Tome and Principe ranks 189/197 ($822M). By GDP per capita, Niger ranks 187/197 ($735), while Sao Tome and Principe ranks 134/197 ($3,491).

Main facts and rankings

Niger Sao Tome
Population
29080898
246362
Population rank 53/197 176/197
GDP
$19.9B
2024
$822M
2024
GDP rank 130/197 189/197
GDP per capita
$735
2024
$3,491
2024
GDP per capita rank 187/197 134/197
GDP per capita, PPP
$2,050
2024
$6,242
2024
Government debt
$9.39B
2024
$533M
2024
Debt-to-GDP ratio
47.2%
2024
64.8%
2024
Government debt per person
$347
2024
$2,262
2024
Government debt per person rank 173/185 116/185
Average annual personal income after taxes
$1,163
2026
$3,111
2026
Land area 489,076 sq mi 371 sq mi
Population density
59 ppl/mi²
2026
661 ppl/mi²
2026
Fertility rate
6.06
2023
3.64
2023
Median age
16.5 years
2024
20.3 years
2024
Life expectancy
61.9 years
2026
70.3 years
2026

Niger and Sao Tome and Principe: Comparison Charts

Niger and Sao Tome and Principe economies compared

GDP
Niger

Sao Tome and Principe
1x
Year GDP
Niger Sao Tome
2024 $19,876,128,486 $822,154,621
2023 $16,698,786,978 $690,456,807
2022 $15,433,852,712 $540,809,499
2021 $14,915,002,436 $524,402,456
2020 $13,744,653,103 $471,229,485
2019 $12,889,555,561 $412,976,083
2018 $12,837,307,497 $383,717,328
2017 $11,185,104,252 $322,002,845
2016 $10,398,861,982 $292,267,272
2015 $9,683,867,926 $259,999,643
2014 $10,862,943,544 $293,119,143
2013 $10,224,897,438 $267,041,748
2012 $9,426,912,648 $225,815,132
2011 $8,772,950,778 $226,455,001
2010 $7,851,192,502 $190,021,192
2009 $7,352,131,310 $200,668,065
2008 $7,297,600,226 $188,021,165
2007 $5,731,485,052 $149,146,919
2006 $4,756,361,252 $142,775,104
2005 $4,383,315,965 $136,450,662
2004 $3,760,443,738 $114,582,284
2003 $3,394,084,732 $102,085,769
2002 $2,782,192,879 $85,171,074
2001 $2,448,714,704 $75,951,133
2000 $2,241,753,193 $76,198,395
1999 $2,537,789,821 $77,302,212
1998 $2,643,363,519 $72,285,404
1997 $2,290,318,910 $91,920,274
1996 $2,405,686,940 $135,188,166
1995 $2,302,537,562 $103,695,237
1994 $1,938,058,175 $131,338,415
1993 $3,052,673,849 $125,742,229
1992 $3,386,232,579 $94,861,781
1991 $3,285,796,875 $107,484,143
1990 $3,512,356,508 $119,297,933
1989 $2,179,567,114 $98,545,367
1988 $2,280,356,193 $99,000,764
1987 $2,233,006,105 $115,952,925
1986 $1,904,096,998 $115,928,907
1985 $1,440,581,652 $82,733,069
1984 $1,461,243,326 $78,213,796
1983 $1,803,099,561 $75,110,289
1982 $2,017,612,216 $80,307,763
1981 $2,170,893,414 $83,499,264
1980 $2,508,524,721 $81,662,231
1979 $2,109,277,666 $65,755,928
1978 $1,774,365,590 $55,044,563
1977 $1,291,458,041 $49,207,692
1976 $1,064,517,601 $52,039,421
1975 $1,048,690,933 $60,101,710
1974 $1,026,137,111 $57,817,591
1973 $946,385,105 $56,011,245
1972 $742,779,661 $41,430,257
1971 $693,573,704 $37,288,845
1970 $649,916,621 $37,211,826
1969 $625,867,985 -
1968 $641,214,226 -
1967 $665,586,872 -
1966 $702,296,079 -
1965 $673,383,511 -
1964 $582,816,396 -
1963 $586,294,879 -
1962 $531,736,599 -
1961 $485,785,231 -
1960 $449,526,873 -

Data sources: World Bank | Economy & Growth (1960–2024, retrieved 2026-04-06).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Niger and Sao Tome and Principe economies compared

GDP per capita
Niger

Sao Tome and Principe
1x
Year GDP per capita
Niger Sao Tome
2024 $735 $3,491
2023 $638 $2,991
2022 $610 $2,390
2021 $609 $2,363
2020 $580 $2,167
2019 $562 $1,935
2018 $579 $1,826
2017 $522 $1,556
2016 $503 $1,435
2015 $486 $1,298
2014 $565 $1,490
2013 $552 $1,383
2012 $529 $1,192
2011 $511 $1,220
2010 $474 $1,045
2009 $461 $1,128
2008 $475 $1,082
2007 $387 $879
2006 $333 $862
2005 $319 $844
2004 $283.5 $727
2003 $265.2 $664
2002 $225.3 $568
2001 $205.4 $519
2000 $194.8 $529
1999 $228.3 $543
1998 $246.1 $514
1997 $220.6 $662
1996 $239.5 $987
1995 $237 $769
1994 $206.2 $990
1993 $335 $964
1992 $384 $740
1991 $384 $855
1990 $424 $970
1989 $271.3 $821
1988 $292.6 $847
1987 $295.3 $1,018
1986 $259.6 $1,043
1985 $202.4 $761
1984 $211.5 $735
1983 $268.8 $720
1982 $310 $783
1981 $343 $830
1980 $409 $829
1979 $354 $683
1978 $307 $587
1977 $229.8 $539
1976 $194.8 $585
1975 $197.2 $693
1974 $198.3 $683
1973 $187.9 $676
1972 $151.4 $511
1971 $145.2 $470
1970 $139.8 $479
1969 $138.3 -
1968 $145.6 -
1967 $155.4 -
1966 $168.6 -
1965 $166.3 -
1964 $148.1 -
1963 $153.3 -
1962 $143.2 -
1961 $134.6 -
1960 $128.3 -

Data sources: World Bank | Economy & Growth (1960–2024, retrieved 2026-04-06).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Niger vs. Sao Tome and Principe life expectancy calculator

Life expectancy
Niger

Sao Tome and Principe
1x
Year Life expectancy, years
Niger Sao Tome
2026 61.9 70.3
2025 61.7 70.1
2024 61.4 69.9
2023 61.2 69.7
2022 60.4 69.2
2021 59.5 68
2020 59.9 68
2019 60 68
2018 59.8 67.6
2017 59.5 67.1
2016 59.2 66.6
2015 58.8 66
2014 58.7 65.5
2013 58.4 64.9
2012 58 64.5
2011 57.6 64.1
2010 57.1 63.9
2009 56.5 63.7
2008 55.9 63.4
2007 55.1 63.3
2006 54.2 63
2005 53.3 62.4
2004 52.4 62.6
2003 51.5 62.2
2002 50.6 61.8
2001 49.9 61.5
2000 49.2 61.2
1999 48.5 61
1998 47.8 60.8
1997 47.1 60.6
1996 46.3 60.6
1995 45.5 60.5
1994 44.6 60.6
1993 43.8 60.6
1992 43.1 60.7
1991 42.3 60.8
1990 41.7 60.7
1989 41.2 59.7
1988 40.8 60.8
1987 40.5 60.7
1986 40.3 57.6
1985 40.1 60.1
1984 40 59.9
1983 40 59.7
1982 39.8 59.5
1981 39.6 59.4
1980 39.3 59.4
1979 38.9 59.3
1978 38.3 59.1
1977 37.7 59
1976 37.1 58.8
1975 36.6 58.6
1974 36.2 58.3
1973 35.9 57.9
1972 35.8 57.4
1971 35.3 57
1970 35.9 56.3
1969 36 55.4
1968 36.1 54.5
1967 36.2 53.4
1966 36.3 52.3
1965 36.4 51.1
1964 36.5 49.7
1963 36.4 48.4
1962 36.3 46.8
1961 36.3 45.2
1960 36.2 43.6
1959 36.1 42.1
1958 36.1 41
1957 36.1 40.1
1956 36 39.5
1955 36 39.3
1954 36 39.2
1953 35.9 39.1
1952 35.9 39.1
1951 35.9 39.1
1950 35.9 39.1

Data sources: United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Niger and Sao Tome and Principe population clocks and comparison

Population
Niger

Sao Tome and Principe
1x
Year Population
Niger Sao Tome
2024 27,032,412 235,536
2023 26,159,867 230,871
2022 25,311,973 226,305
2021 24,502,140 221,961
2020 23,717,613 217,435
2019 22,947,757 213,392
2018 22,188,069 210,187
2017 21,435,446 206,970
2016 20,685,753 203,689
2015 19,939,498 200,291
2014 19,215,909 196,767
2013 18,519,898 193,148
2012 17,836,769 189,439
2011 17,176,283 185,649
2010 16,548,835 181,802
2009 15,943,675 177,853
2008 15,361,915 173,793
2007 14,803,610 169,700
2006 14,268,581 165,638
2005 13,756,192 161,639
2004 13,265,836 157,705
2003 12,796,984 153,814
2002 12,349,144 149,922
2001 11,920,647 146,375
2000 11,509,630 144,018
1999 11,117,411 142,442
1998 10,741,413 140,751
1997 10,383,969 138,922
1996 10,044,852 136,962
1995 9,714,529 134,895
1994 9,398,258 132,732
1993 9,100,789 130,467
1992 8,817,633 128,110
1991 8,546,900 125,697
1990 8,286,059 122,980
1989 8,034,780 119,979
1988 7,793,748 116,939
1987 7,561,150 113,919
1986 7,335,811 111,150
1985 7,118,457 108,658
1984 6,909,971 106,394
1983 6,708,644 104,380
1982 6,512,732 102,508
1981 6,322,006 100,615
1980 6,135,971 98,544
1979 5,955,556 96,252
1978 5,782,932 93,794
1977 5,619,716 91,301
1976 5,464,962 88,922
1975 5,317,019 86,708
1974 5,174,953 84,672
1973 5,037,865 82,798
1972 4,904,845 81,041
1971 4,776,225 79,330
1970 4,650,275 77,626
1969 4,525,725 76,083
1968 4,403,637 74,765
1967 4,283,590 73,596
1966 4,165,544 72,576
1965 4,049,695 71,680
1964 3,935,814 70,865
1963 3,823,873 70,112
1962 3,714,520 69,403
1961 3,608,162 68,707
1960 3,505,050 68,012

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Fertility rates in Niger and Sao Tome and Principe

Fertility rate
Niger

Sao Tome and Principe
1x
Year Fertility rate
Niger Sao Tome
2023 6.06 3.64
2022 6.14 3.7
2021 6.2 3.76
2020 6.37 3.83
2019 6.54 3.9
2018 6.71 3.98
2017 6.87 4.07
2016 7.04 4.2
2015 7.22 4.35
2014 7.34 4.49
2013 7.45 4.58
2012 7.53 4.66
2011 7.59 4.72
2010 7.64 4.77
2009 7.68 4.84
2008 7.7 4.91
2007 7.73 4.96
2006 7.74 4.93
2005 7.77 4.94
2004 7.78 4.96
2003 7.79 5.01
2002 7.8 5.06
2001 7.81 5.1
2000 7.83 5.16
1999 7.84 5.23
1998 7.84 5.3
1997 7.8 5.4
1996 7.78 5.47
1995 7.78 5.55
1994 7.79 5.56
1993 7.79 5.64
1992 7.8 5.7
1991 7.8 5.77
1990 7.81 5.83
1989 7.82 5.88
1988 7.84 5.94
1987 7.87 5.99
1986 7.9 6.05
1985 7.93 6.1
1984 7.92 6.16
1983 7.9 6.22
1982 7.86 6.28
1981 7.82 6.33
1980 7.78 6.39
1979 7.72 6.43
1978 7.66 6.47
1977 7.6 6.5
1976 7.56 6.52
1975 7.54 6.53
1974 7.54 6.53
1973 7.53 6.53
1972 7.52 6.51
1971 7.52 6.49
1970 7.51 6.47
1969 7.51 6.44
1968 7.5 6.42
1967 7.49 6.39
1966 7.48 6.37
1965 7.47 6.35
1964 7.48 6.33
1963 7.49 6.31
1962 7.5 6.28
1961 7.51 6.26
1960 7.53 6.24

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Niger and Sao Tome and Principe demographics compared

Median age
Niger

Sao Tome and Principe
1x
Year Median age, years
Niger Sao Tome
2024 16.5 20.3
2023 16.3 20.1
2022 16.2 19.9
2021 16 19.7
2020 15.9 19.5
2019 15.8 19.4
2018 15.7 19.3
2017 15.6 19.1
2016 15.5 19
2015 15.4 19
2014 15.3 18.9
2013 15.3 18.9
2012 15.3 18.9
2011 15.3 18.9
2010 15.3 18.8
2009 15.4 18.7
2008 15.5 18.7
2007 15.5 18.7
2006 15.7 18.6
2005 15.8 18.5
2004 15.9 18.4
2003 16 18.3
2002 16.1 18.1
2001 16.2 18
2000 16.3 17.9
1999 16.4 17.7
1998 16.5 17.5
1997 16.5 17.4
1996 16.6 17.3
1995 16.6 17.3
1994 16.6 17.2
1993 16.6 17.2
1992 16.6 17.3
1991 16.6 17.3
1990 16.5 17.4
1989 16.5 17.4
1988 16.5 17.4
1987 16.4 17.4
1986 16.4 17.4
1985 16.4 17.4
1984 16.4 17.4
1983 16.4 17.4
1982 16.4 17.4
1981 16.4 17.4
1980 16.4 17.3
1979 16.4 17.3
1978 16.4 17.2
1977 16.3 17.2
1976 16.3 17.1
1975 16.2 17.1
1974 16.1 17.1
1973 16.1 17
1972 16 17
1971 15.9 16.9
1970 15.9 16.9
1969 15.8 17.2
1968 15.7 17.7
1967 15.7 18.5
1966 15.6 19.5
1965 15.6 21
1964 15.6 22.4
1963 15.5 23.5
1962 15.5 24.1
1961 15.5 24.3
1960 15.5 24.2

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/facts/niger/sao-tome-and-principe | CC BY

Interactive Maps

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National statistics comparison

Finance

Niger Sao Tome
GNI, Atlas method
$18.3B
2024
$671M
2024
Government expenditure, % of GDP
13.4%
2024
24.7%
2024
Education expenditure, % of GDP
4.07%
2023
5.03%
2023
Military expenditure, % of GDP
2.24%
2024
n/a
Armed forces personnel
10,000
2020
1,000
1999
Deficit/surplus, % of GDP
-4.27%
2024
+0.92%
2024
Unemployment rate
0.4%
2022
6.66%
2017
Services, % of GDP
45%
2024
80.3%
2024
Industry, % of GDP
17.6%
2024
2.83%
2024
Economic freedom index
51
2026
60.6
2026
Income share by richest 10%
27.8%
2021
32.8%
2017
Income share by poorest 10%
3.8%
2021
2.6%
2017
Total reserves including gold n/a
$46.2M
2023
Personal remittances received
$650M
2024
$80.1M
2024
International tourist arrivals
85,000
2020
33,400
2018
International tourism as share of exports
9.38%
2019
73.2%
2018
Banked people share
14.8%
2024
n/a

Energy

Niger Sao Tome
Energy use, kg of oil equivalent per capita
162 kg
2022
259.3 kg
2007
GDP PPP per kg equivalent of energy use
$11.4
2022
$10.2
2007
Carbon dioxide (CO2) emissions
3.21 megatons
2024
0.15 megatons
2024
CO2 emissions per capita
0.12 tons
2024
0.63 tons
2024
Fossil fuel energy use share
0%
2022
0%
2007
Renewable energy use share
79.6%
2021
42.5%
2022
Alternative and nuclear energy use share
0.05%
2022
n/a
Net energy imports use share
5.41%
2022
n/a
Electric power consumption per capita
62.4 kWh
2022
n/a
Renewable electricity output share
6.38%
2021
6.06%
2021
Hydroelectric share
0%
2021
5.85%
2021
Nuclear share
0%
2021
0%
2021
Electricity access
20.1%
2023
81.3%
2023

Society

Niger Sao Tome
% of world population
0.33%
2024
0.003%
2024
Annual migration change
-7,704
2025
-650
2025
Urban population
18%
2024
68.9%
2024
Male:Female ratio
50.8:49.2
2024
49.7:50.3
2024
Average male height
5.59 ft
2025
5.59 ft
2025
Average female height
5.24 ft
2025
5.24 ft
2025
Quality of life index
14.1
2026
32.3
2026
Corruption Perceptions Index
31
2025
45
2025
Higher education index
10
2026
n/a
Homicides per 100K people
4.39
2012
3.23
2011
Road traffic mortality per 100K people
25.5
2019
27.9
2019
Visa free countries
63
2025
70
2025
Adult literacy rate
35.6%
2022
93.8%
2022
English speaking
1%
2025
4.9%
2025
People using the Internet
23.2%
2023
61.5%
2023

Health

Niger Sao Tome
Government health expenditure per capita
$26
2023
$171.1
2023
Out-of-pocket health expenditure per capita
$13.4
2023
$28.5
2023
Life expectancy
61.9 years
2026
70.3 years
2026
Foreign aid share of health expenditure
14.6%
2023
43.9%
2023
Physicians per 1,000 people
0.04
2023
0.46
2022
Age at first childbirth
18.5 years
2025
19.4 years
2025
Maternal mortality per 100K births
350
2023
75
2023
Mortality rate before reaching 5 years of age
114.8
2023
13.9
2023
Obesity rate
6.21%
2022
17.2%
2022
Diabetes prevalence
4.1%
2024
12.1%
2024
Air quality index
12
2026
24
2026
Tobacco use prevalence
7.7%
2022
7.8%
2022
Pure alcohol consumption per capita
0.13 liters
2020
4.79 liters
2020

Territory

Niger Sao Tome
% of world land
0.85%
2026
0.0006%
2026
Land area per capita
18,092 sq mi
2024
1,574 sq mi
2024
Agricultural land area
179,918 sq mi
2026
166 sq mi
2026
Forest area
4,025 sq mi
2026
193.2 sq mi
2026
Roads length
11,774 mi
2010
808 mi
2018

In-depth comparisons

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2025, retrieved 2026-02-20)
  5. International Monetary Fund (IMF) | Fiscal Monitor (2024, retrieved 2026-02-20)
  6. LivingCost (2026, retrieved 2025-10-14)
  7. World Obesity Federation (2022, retrieved 2026-02-08)
  8. Passport Index (2025, retrieved 2026-02-08)
  9. Transparency International (2025, retrieved 2026-02-10)
  10. The Heritage Foundation | Economic Freedom Index (2026, retrieved 2026-03-09)
  11. EduRank (2026, retrieved 2025-10-13)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.