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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 132/197 ($19.5B) and Sao Tome and Principe ranks 189/197 ($764M). By GDP per capita, Niger ranks 187/197 ($723), while Sao Tome and Principe ranks 138/197 ($3,245).

Main facts and rankings

Niger Sao Tome
Population
28638403
244055
Population rank 53/197 176/197
GDP
$19.5B
2024
$764M
2024
GDP rank 132/197 189/197
GDP per capita
$723
2024
$3,245
2024
GDP per capita rank 187/197 138/197
GDP per capita, PPP
$2,015
2024
$6,230
2024
Government debt
$9.22B
2024
$332M
2024
Debt-to-GDP ratio
43.4%
2025
37.3%
2025
Government debt per person
$341
2024
$1,410
2024
Government debt per person rank 176/185 133/185
Average annual personal income after taxes
$1,379
2025
$2,715
2025
Land area
489,076 sq mi
2025
371 sq mi
2025
Population density
55.3 ppl/mi²
2024
635 ppl/mi²
2024
Fertility rate
6.06
2023
3.64
2023
Median age
16.5 years
2024
20.3 years
2024
Life expectancy
61.7 years
2025
70.1 years
2025

Niger and Sao Tome and Principe: Comparison Charts

Niger and Sao Tome and Principe economies compared

GDP
Niger

Sao Tome and Principe
Year GDP
Niger Sao Tome
1960 $449,526,873 -
1961 $485,785,231 -
1962 $531,736,599 -
1963 $586,294,879 -
1964 $582,816,396 -
1965 $673,383,511 -
1966 $702,296,079 -
1967 $665,586,872 -
1968 $641,214,226 -
1969 $625,867,985 -
1970 $649,916,621 $37,211,826
1971 $693,573,704 $37,288,845
1972 $742,779,661 $41,430,257
1973 $946,385,105 $56,011,245
1974 $1,026,137,111 $57,817,591
1975 $1,048,690,933 $60,101,710
1976 $1,064,517,601 $52,039,421
1977 $1,291,458,041 $49,207,692
1978 $1,774,365,590 $55,044,563
1979 $2,109,277,666 $65,755,928
1980 $2,508,524,721 $81,662,231
1981 $2,170,893,414 $83,499,264
1982 $2,017,612,216 $80,307,763
1983 $1,803,099,561 $75,110,289
1984 $1,461,243,326 $78,213,796
1985 $1,440,581,652 $82,733,069
1986 $1,904,096,998 $115,928,907
1987 $2,233,006,105 $115,952,925
1988 $2,280,356,193 $99,000,764
1989 $2,179,567,114 $98,545,367
1990 $3,512,356,508 $119,297,933
1991 $3,285,796,875 $107,484,143
1992 $3,386,232,579 $94,861,781
1993 $3,052,673,849 $125,742,229
1994 $1,938,058,175 $131,338,415
1995 $2,302,537,562 $103,695,237
1996 $2,405,686,940 $135,188,166
1997 $2,290,318,910 $91,920,274
1998 $2,643,363,519 $72,285,404
1999 $2,537,789,821 $77,302,212
2000 $2,241,753,193 $76,198,395
2001 $2,448,714,704 $75,951,133
2002 $2,782,192,879 $85,171,074
2003 $3,394,084,732 $102,085,769
2004 $3,760,443,738 $114,582,284
2005 $4,383,315,965 $136,450,662
2006 $4,756,361,252 $142,775,104
2007 $5,731,485,052 $149,146,919
2008 $7,297,600,226 $188,021,165
2009 $7,352,131,310 $200,668,065
2010 $7,851,192,502 $190,021,192
2011 $8,772,950,778 $226,455,001
2012 $9,426,912,648 $229,371,348
2013 $10,224,897,438 $267,041,748
2014 $10,862,943,544 $293,119,143
2015 $9,683,867,926 $259,999,643
2016 $10,398,861,982 $292,267,272
2017 $11,185,104,252 $322,002,845
2018 $12,837,307,497 $383,717,328
2019 $12,889,555,561 $412,976,083
2020 $13,744,653,103 $471,229,485
2021 $14,915,002,436 $524,402,456
2022 $15,433,852,714 $540,809,499
2023 $16,698,786,973 $678,976,265
2024 $19,537,639,288 $764,274,043

Niger and Sao Tome and Principe economies compared

GDP per capita
Niger

Sao Tome and Principe
Year GDP per capita
Niger Sao Tome
1960 $128.3 -
1961 $134.6 -
1962 $143.2 -
1963 $153.3 -
1964 $148.1 -
1965 $166.3 -
1966 $168.6 -
1967 $155.4 -
1968 $145.6 -
1969 $138.3 -
1970 $139.8 $479
1971 $145.2 $470
1972 $151.4 $511
1973 $187.9 $676
1974 $198.3 $683
1975 $197.2 $693
1976 $194.8 $585
1977 $229.8 $539
1978 $307 $587
1979 $354 $683
1980 $409 $829
1981 $343 $830
1982 $310 $783
1983 $268.8 $720
1984 $211.5 $735
1985 $202.4 $761
1986 $259.6 $1,043
1987 $295.3 $1,018
1988 $292.6 $847
1989 $271.3 $821
1990 $424 $970
1991 $384 $855
1992 $384 $740
1993 $335 $964
1994 $206.2 $990
1995 $237 $769
1996 $239.5 $987
1997 $220.6 $662
1998 $246.1 $514
1999 $228.3 $543
2000 $194.8 $529
2001 $205.4 $519
2002 $225.3 $568
2003 $265.2 $664
2004 $283.5 $727
2005 $319 $844
2006 $333 $862
2007 $387 $879
2008 $475 $1,082
2009 $461 $1,128
2010 $474 $1,045
2011 $511 $1,220
2012 $529 $1,211
2013 $552 $1,383
2014 $565 $1,490
2015 $486 $1,298
2016 $503 $1,435
2017 $522 $1,556
2018 $579 $1,826
2019 $562 $1,935
2020 $580 $2,167
2021 $609 $2,363
2022 $610 $2,390
2023 $638 $2,941
2024 $723 $3,245

Niger vs. Sao Tome and Principe life expectancy calculator

Life expectancy
Niger

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

Niger and Sao Tome and Principe population clocks and comparison

Population
Niger

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

Fertility rates in Niger and Sao Tome and Principe

Fertility rate
Niger

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

Niger and Sao Tome and Principe demographics compared

Median age
Niger

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

Interactive Maps

Use the buttons below to switch between world maps comparing statistics for Niger and Sao Tome and Principe.

GDP per capita

GDP

Life expectancy

Population

Population density

Fertility rate

Median age

Land area

National statistics comparison

Finance

Niger Sao Tome
GNI, Atlas method
$17.9B
2024
$653M
2024
Government expenditure, % of GDP
13.4%
2025
24.5%
2025
Education expenditure, % of GDP
4.07%
2023
5.03%
2023
Military expenditure, % of GDP
2.07%
2023
n/a
Armed forces personnel
10,000
2020
1,000
1999
Deficit/surplus, % of GDP
-3.02%
2025
+2.56%
2025
Unemployment rate
0.4%
2022
8.81%
2017
Services, % of GDP
45.4%
2024
76.6%
2024
Industry, % of GDP
17.8%
2024
2.91%
2024
Economic freedom index
51.5
2025
60.4
2025
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
$567M
2024
$10M
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
2.82 megatons
2023
0.21 megatons
2023
CO2 emissions per capita
0.11 tons
2023
0.93 tons
2023
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
-4,041
2024
-604
2024
Urban population
17.2%
2024
77%
2024
Male:Female ratio
50:50
2024
50:50
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
16.1
2025
32.1
2025
Corruption Perceptions Index
34
2024
45
2024
Higher education index
22
2025
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
64
2025
71
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
$26.5
2022
$180.3
2022
Out-of-pocket health expenditure per capita
$10.7
2022
$21.6
2022
Life expectancy
61.7 years
2025
70.1 years
2025
Foreign aid share of health expenditure
18.2%
2022
30.9%
2022
Physicians per 1,000 people
0.02
2022
0.49
2019
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, per 1,000 live births
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
2025
24
2025
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%
2025
0.0006%
2025
Land area per capita
18,092 sq mi
2024
1,574 sq mi
2024
Agricultural land area
179,918 sq mi
2025
166 sq mi
2025
Forest area
4,025 sq mi
2025
193.2 sq mi
2025
Roads length
11,774 mi
2010
808 mi
2018

In-depth comparisons

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