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Economy of Iran vs Sao Tome and Principe compared: GDP & Debt

Updated on by Georank

Iran has a GDP of $363B compared to $981M for Sao Tome and Principe, ranking 44/197 and 189/197 by economy size, respectively.

Iran has $135B in government debt (37.3% of GDP), compared to $546M (55.7% of GDP) in Sao Tome and Principe.

Iran vs Sao Tome and Principe GDP by year

Iran
Sao Tome and Principe
1x
Year GDP, current $
Iran Sao Tome
2025 $362,682,115,433 $981,293,587
2024 $475,252,089,215 $824,992,558
2023 $457,510,482,317 $690,456,807
2022 $422,662,261,526 $540,809,499
2021 $407,350,685,583 $524,402,456
2020 $280,934,329,280 $471,229,485
2019 $347,988,400,958 $412,976,083
2018 $411,903,303,606 $383,717,328
2017 $510,239,893,418 $322,002,845
2016 $478,618,064,871 $292,267,272
2015 $409,191,686,497 $259,999,643
2014 $462,284,793,281 $293,119,143
2013 $500,399,839,840 $267,041,748
2012 $644,019,315,004 $229,371,348
2011 $629,082,257,472 $226,455,001
2010 $487,069,570,464 $190,021,192
2009 $414,059,094,949 $200,668,065
2008 $406,070,949,554 $188,021,165
2007 $349,736,591,832 $149,146,919
2006 $265,602,187,404 $142,775,104
2005 $224,970,371,325 $136,450,662
2004 $187,754,571,248 $114,582,284
2003 $151,911,222,119 $102,085,769
2002 $128,626,917,504 $85,171,074
2001 $126,878,750,296 $75,951,133
2000 $109,591,707,802 $76,198,395
1999 $113,848,450,088 $77,302,212
1998 $110,276,913,363 $72,285,404
1997 $113,919,163,421 $91,920,274
1996 $120,403,931,885 $135,188,166
1995 $96,419,225,744 $103,695,237
1994 $71,841,461,173 $131,338,415
1993 $63,743,623,232 $125,742,229
1992 $119,768,691,217 $94,861,781
1991 $131,637,664,958 $107,484,143
1990 $124,813,263,926 $119,297,933
1989 $120,496,362,916 $98,545,367
1988 $123,057,861,334 $99,000,764
1987 $134,009,995,923 $115,952,925
1986 $209,094,561,833 $115,928,907
1985 $180,183,629,600 $82,733,069
1984 $162,276,728,620 $78,213,796
1983 $156,365,156,618 $75,110,289
1982 $125,948,756,439 $80,307,763
1981 $100,499,312,750 $83,499,264
1980 $94,362,275,580 $81,662,231
1979 $90,391,877,326 $65,755,928
1978 $77,994,316,621 $55,044,563
1977 $80,600,122,702 $49,207,692
1976 $68,055,295,081 $52,039,421
1975 $51,776,222,350 $60,101,710
1974 $46,209,092,072 $57,817,591
1973 $27,081,698,250 $56,011,245
1972 $17,153,463,263 $41,430,257
1971 $13,731,802,833 $37,288,845
1970 $10,976,245,154 $37,211,826
1969 $9,743,089,607 -
1968 $8,623,172,960 -
1967 $7,555,383,690 -
1966 $6,789,938,672 -
1965 $6,197,319,929 -
1964 $5,379,845,648 -
1963 $4,928,628,018 -
1962 $4,693,566,416 -
1961 $4,426,949,095 -
1960 $4,199,134,390 -

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

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

GDP per capita in Iran vs Sao Tome and Principe by year

Iran
GDP per capita

GDP per capita, PPP
Sao Tome and Principe
GDP per capita

GDP per capita, PPP
1x
Year Current $
Iran Sao Tome
GDP per capita GDP per capita, PPP GDP per capita GDP per capita, PPP
2025 $3,924 - $4,084 -
2024 $5,190 $19,874 $3,503 $6,242
2023 $5,049 $18,917 $2,991 $6,150
2022 $4,721 $17,546 $2,390 $6,034
2021 $4,605 $15,884 $2,363 $5,733
2020 $3,203 $15,119 $2,167 $5,145
2019 $3,997 $13,928 $1,935 $4,655
2018 $4,783 $15,324 $1,826 $3,941
2017 $6,001 $15,719 $1,556 $3,436
2016 $5,711 $15,195 $1,435 $3,320
2015 $4,953 $14,274 $1,298 $3,172
2014 $5,672 $16,065 $1,490 $3,233
2013 $6,223 $16,215 $1,383 $2,946
2012 $8,114 $17,021 $1,211 $2,653
2011 $8,026 $19,275 $1,220 $2,914
2010 $6,291 $18,628 $1,045 $2,859
2009 $5,416 $17,615 $1,128 $2,846
2008 $5,377 $17,549 $1,082 $2,802
2007 $4,688 $17,384 $879 $2,650
2006 $3,619 $15,907 $862 $2,551
2005 $3,132 $15,016 $844 $2,329
2004 $2,672 $14,425 $727 $2,171
2003 $2,209 $13,755 $664 $2,094
2002 $1,891 $12,554 $568 $1,945
2001 $1,881 $11,533 $519 $1,898
2000 $1,650 $11,187 $529 $1,830
1999 $1,740 $10,489 $543 $1,802
1998 $1,709 $10,285 $514 $1,754
1997 $1,790 $10,101 $662 $1,714
1996 $1,915 $9,916 $987 $1,693
1995 $1,550 $9,255 $769 $1,663
1994 $1,168 $8,951 $990 $1,623
1993 $1,038 $8,933 $964 $1,581
1992 $1,957 $8,888 $740 $1,556
1991 $2,194 $8,580 $855 $1,540
1990 $2,138 $7,566 $970 $1,504
1989 $2,125 - $821 -
1988 $2,234 - $847 -
1987 $2,513 - $1,018 -
1986 $4,064 - $1,043 -
1985 $3,634 - $761 -
1984 $3,395 - $735 -
1983 $3,397 - $720 -
1982 $2,845 - $783 -
1981 $2,393 - $830 -
1980 $2,368 - $829 -
1979 $2,352 - $683 -
1978 $2,101 - $587 -
1977 $2,243 - $539 -
1976 $1,954 - $585 -
1975 $1,532 - $693 -
1974 $1,409 - $683 -
1973 $851 - $676 -
1972 $555 - $511 -
1971 $457 - $470 -
1970 $377 - $479 -
1969 $345 - - -
1968 $314 - - -
1967 $283.7 - - -
1966 $262.9 - - -
1965 $247.5 - - -
1964 $221.7 - - -
1963 $209.6 - - -
1962 $205.8 - - -
1961 $200.1 - - -
1960 $195.6 - - -

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

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

Iran's GDP per capita is $3,924, ranking 135/197, compared to $4,084 in Sao Tome and Principe, ranking 132/197. Adjusted for purchasing power (GDP per capita PPP), Iran ranks 97th at $19,874, while Sao Tome and Principe ranks 151st at $6,242.

Economic indicators

Iran Sao Tome
Gross domestic product
$363B
2025
$981M
2025
GDP rank
44/197
2025
189/197
2025
GDP growth
-2.83%
2024-2025
1.03%
2024-2025
GDP per capita
$3,924
2025
$4,084
2025
GDP per capita rank
135/197
2025
132/197
2025
GDP per capita, PPP
$19,874
2024
$6,242
2024
GDP per capita PPP rank
97/197
2024
151/197
2024
Government debt
$135B
2025
$546M
2025
Debt-to-GDP ratio
37.3%
2025
55.7%
2025
Government debt per person
$1,463
2025
$2,275
2025
Government debt per person rank
133/185
2025
115/185
2025
Average annual personal income after taxes
$2,958
2026
$3,249
2026
Market capitalization of domestic companies
$186B
2025
n/a
Income share by richest 10%
28.2%
2023
32.8%
2017
Income share by poorest 10%
2.8%
2023
2.6%
2017
Government expenditure, % of GDP
13.4%
2025
21.2%
2025
Consumer prices inflation
42.2%
2024-2025
0.9%
2024-2025
Central bank interest rate
23%
2023
n/a
Unemployment rate
7.63%
2024
6.66%
2017
Population
93580141
247495

Spending and national debt comparison by year

Iran
Spending

Debt
Sao Tome and Principe
Spending

Debt
1x
Year % of GDP
Iran Sao Tome
Government spending Government debt Government spending Government debt
2025 13.4% 37.3% 21.2% 55.7%
2024 16% 31.2% 23.8% 65.2%
2023 12.8% 29.6% 23.9% 73.2%
2022 12.8% 34.5% 27.7% 86.8%
2021 13.4% 39.9% 25.6% 85.1%
2020 12.1% 47.1% 23.2% 91%
2019 13.6% 44.6% 22.8% 98.6%
2018 14.8% 41.6% 28% 95.9%
2017 16.4% 43.2% 31.9% 92.3%
2016 16.3% 45.9% 38.3% 104.6%
2015 14.1% 32.1% 41.6% 101.1%
2014 12.3% 10.9% 36% 92.5%
2013 11.5% 10.2% 35.5% 76.8%
2012 11.4% 11.7% 50.5% 59.6%
2011 14.6% 10.6% 53.4% 86%
2010 14.1% 12.8% 51.7% 83%
2009 15.7% 11.5% 48.6% 70.3%
2008 16.8% 10.6% 30.4% 60.7%
2007 14.2% 13.5% 38.9% 110.1%
2006 18.7% 15.2% 32.5% 283.2%
2005 17.9% 18.3% 43.7% 334%
2004 15.1% 21.1% 60.6% 354%
2003 15.7% 21.9% 51.9% 329%
2002 15.6% 23.4% 44.3% 367%
2001 13.6% 21% 52.8% 418%
2000 13.3% 18.2% 10.7% -
1999 15.7% 22.2% - -
1998 16.9% 29.6% - -
1997 17.4% 30.9% - -
1996 17.3% 29.3% - -
1995 21% 31.2% - -
1994 23% 41.7% - -
1993 27.2% 25.6% - -
1992 14.4% 25.2% - -
1991 14% 29.3% - -
1990 16.4% 37% - -
1989 20% 48.8% - -
1988 23.6% 53.2% - -
1987 18.6% 48.6% - -
1986 19% 47.4% - -
1985 21.6% 8.73% - -
1984 23.7% 10% - -
1983 27.5% 35.7% - -
1982 29.7% 47.7% - -
1981 33.7% 47.6% - -
1980 35.8% 35.5% - -
1979 - - - -
1978 - - - -
1977 - 9.23% - -
1976 - 6.92% - -
1975 - 8.81% - -
1974 - 6.68% - -
1973 - 12.8% - -
1972 - 12.7% - -
1971 - 14.2% - -
1970 - 14.1% - -
1969 - - - -
1968 23.6% - - -
1967 22.3% - - -
1966 20.5% - - -
1965 16.3% 14.9% - -
1964 15.4% 15.2% - -
1963 14.8% 12.4% - -
1962 15.6% 13.4% - -

Data sources: International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08); International Monetary Fund (IMF) | Public Finances in Modern History (1962–1995, retrieved 2026-07-08).

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

In 2025, Iran's government spending was $48.7B, accounting for 13.4% of its GDP, while Sao Tome and Principe spent $208M, or 21.2% of GDP.

Debt-to-GDP ratio is 37.3% in Iran and 55.7% in Sao Tome and Principe, ranking 139/185 and 88/185, respectively.

Government deficit by year

Deficit/surplus
Iran

Sao Tome and Principe
1x
Year Deficit/surplus, % of GDP
Iran Sao Tome
2025 -5.65% -2.53%
2024 -2.68% 0.92%
2023 -3.04% -2.13%
2022 -2.64% -2.24%
2021 -3.01% -1.52%
2020 -4.87% 2.94%
2019 -4.3% -0.07%
2018 -1.59% -2.02%
2017 -1.55% -3.11%
2016 -1.7% -5.01%
2015 -1.3% -7.6%
2014 -0.91% -6.27%
2013 -0.72% 2.13%
2012 -0.5% -12.3%
2011 -0.66% -13%
2010 -0.84% -12.1%
2009 -3.3% -18%
2008 -4.39% 13.6%
2007 -2.41% 125.1%
2006 -4.91% 18%
2005 -2.44% 26.8%
2004 -2.45% -25.1%
2003 -2.76% -15.9%
2002 -2.88% -10.4%
2001 0.02% -13.5%
2000 5.42% 51.5%
1999 -0.51% -
1998 -5.03% -
1997 -1.81% -
1996 -0.75% -
1995 -2.63% -
1994 -3.36% -
1993 -5.15% -
1992 -0.86% -
1991 -1.64% -
1990 -1.73% -
1989 -4.45% -
1988 -10.3% -
1987 -6.84% -
1986 -7.84% -
1985 -3.74% -
1984 -4.02% -
1983 -6.15% -
1982 -5.55% -
1981 -10.7% -
1980 -14.2% -
1979 - -
1978 - -
1977 - -
1976 - -
1975 - -
1974 - -
1973 - -
1972 - -
1971 - -
1970 - -
1969 - -
1968 -4.57% -
1967 -4% -
1966 -2.63% -
1965 -1.23% -
1964 -0.04% -
1963 0.26% -
1962 -1.39% -

Data sources: International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08); International Monetary Fund (IMF) | Public Finances in Modern History (1962–1989, retrieved 2026-07-08).

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

In 2025, Iran's government deficit, the difference between spending and revenue, was $20.5B, equivalent to 5.65% of GDP. This compares to Sao Tome and Principe's deficit of $24.8M, or 2.53% of GDP.

Over the past 26 years, Iran recorded a fiscal deficit in 24 of those years, while Sao Tome and Principe ran a deficit in 18 years. On average, Iran posted an annual deficit equal to 2.15% of GDP, compared to surplus of 3.39% of GDP for Sao Tome and Principe.

Inflation comparison by year

Inflation
Iran

Sao Tome and Principe
1x
Year Consumer prices inflation
Iran Sao Tome
2025 42.2% 0.9%
2024 32.5% 14.4%
2023 44.6% 21.1%
2022 43.5% 18.1%
2021 43.4% 8.1%
2020 30.6% 9.8%
2019 39.9% 7.7%
2018 18% 7.9%
2017 8.04% 5.7%
2016 7.25% 5.4%
2015 12.5% 6.1%
2014 16.6% 7%
2013 36.6% 8.1%
2012 27.3% 10.6%
2011 26.3% 14.3%
2010 10.1% 13.3%
2009 13.6% 17%
2008 25.4% 32%
2007 17.3% 18.6%
2006 10% 23.1%
2005 13.4% 17.2%
2004 14.8% 13.3%
2003 16.5% 9.8%
2002 14.3% 10.1%
2001 11.3% 9.2%
2000 14.5% 11%
1999 20.1% 11%
1998 17.9% 42.1%
1997 17.3% 69%

Data sources: International Monetary Fund (IMF) | World Economic Outlook (1997–2025, retrieved 2026-07-08); World Bank | Economy & Growth (1997–2025, retrieved 2026-07-08).

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

Over the past 29 years, Iran has recorded an average annual inflation rate of 22.3%, compared with 15.2% in Sao Tome and Principe. In 2025, inflation was 42.2% in Iran and 0.9% in Sao Tome and Principe.

Balance of trade

Iran Sao Tome
Current account balance
$12.5B
2000
$41.5M
2024
Current account balance ranking
22/190
2000
68/190
2024
Current account balance, % of GDP
+11.4%
2000
+5.03%
2024
Goods imports
$15.2B
2000
$153M
2024
Goods exports
$28.3B
2000
$29.3M
2024
Service imports
$2.3B
2000
$83M
2024
Service exports
$1.38B
2000
$88.2M
2024
Imports of goods and services, % of GDP
34.5%
2025
33.3%
2025
Exports of goods and services, % of GDP
25.8%
2025
13.3%
2025

Economic freedom indices

The indices of economic freedom below are issued by the Heritage Foundation. Higher scores indicate stronger economic health.

Iran Sao Tome
Economic freedom 41.8 60.6
Economic freedom ranking 185/197 93/197
Property rights 20.2 55.2
Government integrity 16.2 47.2
Judicial effectiveness 18.7 60.8
Tax burden 81.3 88.6
Government spending 94.7 80.6
Fiscal health 83.3 89.5
Business freedom 37.4 59.9
Labor freedom 41.8 40.8
Monetary freedom 42.2 59.4
Trade freedom 55.8 65
Investment freedom 5 50
Financial freedom 5 30

Economic freedom comparison by year

Iran
Sao Tome and Principe
1x
Year Economic freedom index
Iran Sao Tome
2026 41.8 60.6
2025 42.5 60.4
2024 41.2 60.5
2023 42.2 61.5
2022 42.4 60.3
2021 47.2 55.9
2020 49.2 56.2
2019 51.1 54
2018 50.9 53.6
2017 50.5 55.4
2016 43.5 56.7
2015 41.8 53.3
2014 40.3 48.8
2013 43.2 48
2012 42.3 50.2
2011 42.1 49.5
2010 43.4 48.8
2009 44.6 43.8
2008 45 -
2007 45 -
2006 45 -
2005 50.5 -
2004 42.8 -
2003 43.2 -
2002 36.4 -
2001 35.9 -
2000 36.1 -
1999 36.8 -
1998 36 -
1997 34.5 -
1996 36.1 -

Data sources: The Heritage Foundation | Economic Freedom Index (1996–2026, retrieved 2026-07-08).

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

The Economic Freedom Index for Iran is 41.8, ranking 185/197, compared to 60.6 for Sao Tome and Principe, ranking 93/197. The chart above displays a comparison of annual changes in economic freedom indexes.

Other economic metrics

Iran Sao Tome
Services, % of GDP
47.1%
2025
81.4%
2025
Industry, % of GDP
39.6%
2025
2.23%
2025
Agriculture, forestry, and fishing, % of GDP
10.6%
2025
12.2%
2025
GNI, Atlas method
$429B
2025
$913M
2025
GNI per capita, PPP
$19,660
2025
$6,920
2025
Total reserves including gold
$7.69B
1982
$58.8M
2024
Total reserves ranking
89/177
1982
175/177
2024
Net foreign direct investment
-$39M
2000
$20.5M
2024
Net inflows of foreign direct investment
$1.45B
2024
-$16.7M
2024
Net outflows of foreign direct investment
$89.4M
2024
$3.83M
2024
Servicing debt to the IMF, % of GNI
0.08%
2024
0.62%
2024
Poverty at national poverty lines
18.7%
2020
66.2%
2020
Gross capital formation, % of GDP
41.8%
2025
8.74%
2025

GDP per capita map

1x

Data sources: World Bank | Economy & Growth (1985–2025, retrieved 2026-07-08); U.S. Census Bureau (1985–2025, retrieved 2026-07-08).

GeoRank.org/economy/iran/sao-tome-and-principe | CC BY

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Data sources:

  1. World Bank | Economy & Growth (1960–2025, retrieved 2026-07-08)
  2. International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08)
  3. International Monetary Fund (IMF) | Public Finances in Modern History (1962–1995, retrieved 2026-07-08)
  4. The Heritage Foundation | Economic Freedom Index (1996–2026, retrieved 2026-07-08)
  5. U.S. Census Bureau (1985–2025, retrieved 2026-07-08)
  6. Central Intelligence Agency (CIA) (2020, retrieved 2026-07-08)
  7. United Nations | World Population Prospects (2026, retrieved 2026-07-08)
  8. LivingCost (2026, retrieved 2026-07-08)

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.

The current account balance is the sum of net trade in goods and services, net earnings from cross-border investments, and net transfer payments. It reflects a country's economic transactions with the rest of the world and is a fundamental component of the balance of payments. A surplus indicates that a country exports more than it imports, while a deficit shows the opposite.

Gross National Income (GNI) measures a country's total income. It encompasses income earned by residents, businesses, and foreign sources, defined as employee compensation and investment profits. GNI adds product taxes not included elsewhere and subtracts subsidies. It accounts for income from residents working abroad but excludes earnings from foreigners within the country.

A negative value for Net Foreign Direct Investment indicates a country is a net receiver of investments, as foreign inflows exceed outflows after Balance of Payments adjustments. A positive value indicates a net provider, with outflows exceeding inflows. Inflows are credits (increasing foreign claims on domestic assets), while outflows are debits (increasing domestic assets abroad).

Foreign direct investment (FDI, net inflows) shows how much capital foreign investors bring into a country after accounting for any funds that flow back in the opposite direction. It represents the net value of overseas companies establishing, expanding, or financing businesses in the reporting country. A positive number means more capital entered the country than was withdrawn, while a negative number means foreign investors pulled out more than they invested.

Foreign direct investment (FDI, net outflows) shows how much capital residents of a country invest abroad after accounting for any funds that flow back in the opposite direction. It represents the net value of domestic companies establishing, expanding, or financing businesses in other countries. A positive number means more capital was invested abroad than withdrawn, while a negative number means residents pulled back more than they invested.

Principal and interest payments to the IMF in currency, goods, or services on long-term debt expressed as a share of GNI.

Formerly gross domestic investment, gross capital formation measures the share of a country’s economic output invested in fixed assets, including buildings, machinery, and infrastructure. It indicates how much of the economy is devoted to building productive capacity.