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Economy of Montenegro vs Tonga compared: GDP & Debt

Updated on by Georank

Montenegro has a GDP of $9.23B compared to $679M for Tonga, ranking 155/197 and 191/197 by economy size, respectively.

Montenegro has $6.19B in government debt (67.1% of GDP), compared to $186M (27.4% of GDP) in Tonga.

Montenegro vs Tonga GDP by year

Montenegro
Tonga
1x
Year GDP, current $
Montenegro Tonga
2025 $9,232,801,465 $679,218,219
2024 $8,274,290,506 $647,488,244
2023 $7,643,318,276 $591,139,734
2022 $6,259,721,790 $556,514,556
2021 $5,822,908,964 $519,306,339
2020 $4,734,192,593 $506,571,487
2019 $5,483,622,632 $506,031,248
2018 $5,433,469,311 $493,530,767
2017 $4,803,964,684 $459,976,847
2016 $4,357,467,226 $420,828,255
2015 $4,010,884,107 $437,525,539
2014 $4,579,635,404 $440,997,735
2013 $4,422,097,042 $451,788,498
2012 $4,071,828,832 $471,122,971
2011 $4,507,127,585 $414,143,828
2010 $4,136,936,244 $366,887,375
2009 $4,159,063,347 $312,415,028
2008 $4,559,410,049 $344,438,844
2007 $3,682,586,459 $298,519,623
2006 $2,719,979,875 $292,232,703
2005 $2,258,016,380 $261,823,805
2004 $2,077,046,942 $230,678,011
2003 $1,708,196,981 $202,246,591
2002 $1,286,314,054 $182,764,281
2001 $1,159,869,246 $181,117,230
2000 $984,293,044 $204,848,488
1999 $828,950,327 $199,208,718
1998 $854,261,161 $191,504,893
1997 $838,288,806 $214,991,452
1996 - $222,100,576
1995 - $208,871,666
1994 - $195,990,986
1993 - $138,489,884
1992 - $137,066,291
1991 - $132,201,141
1990 - $113,563,822
1989 - $106,344,855
1988 - $106,657,267
1987 - $81,667,133
1986 - $68,195,856
1985 - $60,058,663
1984 - $64,248,355
1983 - $60,863,964
1982 - $62,068,161
1981 - $62,242,013
1980 - $53,260,077
1979 - $44,667,002
1978 - $41,567,472
1977 - $34,139,388
1976 - $30,036,417
1975 - $32,506,742

Data sources: World Bank | Economy & Growth (1975–2025, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

GDP per capita in Montenegro vs Tonga by year

Montenegro
GDP per capita

GDP per capita, PPP
Tonga
GDP per capita

GDP per capita, PPP
1x
Year Current $
Montenegro Tonga
GDP per capita GDP per capita, PPP GDP per capita GDP per capita, PPP
2025 $14,817 - $6,547 -
2024 $13,270 $34,063 $6,215 -
2023 $12,258 $31,863 $5,652 $7,803
2022 $10,038 $28,050 $5,298 $7,296
2021 $9,316 $23,690 $4,923 $6,929
2020 $7,555 $20,625 $4,792 $6,676
2019 $8,749 $23,706 $4,789 $6,473
2018 $8,674 $21,084 $4,675 $6,393
2017 $7,674 $19,357 $4,366 $6,229
2016 $6,968 $18,030 $3,988 $5,920
2015 $6,421 $16,092 $4,124 $5,472
2014 $7,342 $15,276 $4,137 $5,336
2013 $7,103 $14,692 $4,219 $5,120
2012 $6,552 $13,793 $4,384 $4,996
2011 $7,266 $14,347 $3,850 $4,855
2010 $6,679 $13,612 $3,416 $4,465
2009 $6,727 $12,976 $2,914 $4,384
2008 $7,390 $13,802 $3,218 $4,600
2007 $5,979 $12,452 $2,797 $4,316
2006 $4,423 $10,440 $2,750 $4,327
2005 $3,676 $8,314 $2,478 $4,315
2004 $3,386 $7,841 $2,195 $4,235
2003 $2,790 $7,340 $1,936 $4,231
2002 $2,109 $7,100 $1,759 $4,171
2001 $1,910 $6,772 $1,754 $3,955
2000 $1,627 $6,004 $1,995 $3,834
1999 $1,368 $5,684 $1,952 $3,636
1998 $1,406 $6,170 $1,889 $3,527
1997 $1,375 $5,798 $2,136 $3,434
1996 - - $2,215 $3,410
1995 - - $2,084 $3,347
1994 - - $1,957 $3,088
1993 - - $1,383 $2,882
1992 - - $1,370 $2,716
1991 - - $1,323 $2,652
1990 - - $1,139 $2,416
1989 - - $1,070 -
1988 - - $1,078 -
1987 - - $830 -
1986 - - $696 -
1985 - - $613 -
1984 - - $656 -
1983 - - $621 -
1982 - - $633 -
1981 - - $636 -
1980 - - $545 -
1979 - - $458 -
1978 - - $428 -
1977 - - $353 -
1976 - - $315 -
1975 - - $349 -

Data sources: World Bank | Economy & Growth (1975–2025, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

Montenegro's GDP per capita is $14,817, ranking 71/197, compared to $6,547 in Tonga, ranking 110/197. Adjusted for purchasing power (GDP per capita PPP), Montenegro ranks 65th at $34,063, while Tonga ranks 144th at $7,803.

Economic indicators

Montenegro Tonga
Gross domestic product
$9.23B
2025
$679M
2025
GDP rank
155/197
2025
191/197
2025
GDP growth
2.74%
2024-2025
2.8%
2024-2025
GDP per capita
$14,817
2025
$6,547
2025
GDP per capita rank
71/197
2025
110/197
2025
GDP per capita, PPP
$34,063
2024
$7,803
2023
GDP per capita PPP rank
65/197
2024
144/197
2023
Government debt
$6.19B
2025
$186M
2025
Debt-to-GDP ratio
67.1%
2025
27.4%
2025
Government debt per person
$9,942
2025
$1,793
2025
Government debt per person rank
61/185
2025
123/185
2025
Average annual personal income after taxes
$12,768
2026
$4,104
2026
Market capitalization of domestic companies
$3.79B
2012
n/a
Income share by richest 10%
24.7%
2021
22%
2021
Income share by poorest 10%
2.1%
2021
4%
2021
Government expenditure, % of GDP
43.9%
2025
46.8%
2025
Consumer prices inflation
3.9%
2024-2025
5.59%
2024-2025
Unemployment rate
11.5%
2024
1.65%
2023
Population
613759
103283

Spending and national debt comparison by year

Montenegro
Spending

Debt
Tonga
Spending

Debt
1x
Year % of GDP
Montenegro Tonga
Government spending Government debt Government spending Government debt
2025 43.9% 67.1% 46.8% 27.4%
2024 44.1% 60.8% 44.3% 31.9%
2023 40.4% 59.6% 41.5% 37.2%
2022 42.2% 70.3% 41.3% 40.2%
2021 45.1% 86.2% 44.5% 43%
2020 54.9% 108.4% 37.1% 41.7%
2019 44.4% 79.6% 39% 41.8%
2018 47.8% 72.9% 39.3% 45.5%
2017 47.6% 66.9% 39.7% 44.7%
2016 47.7% 66.7% 37.2% 49.4%
2015 46.9% 69.5% 37.4% 51.1%
2014 44.3% 63.6% 31.5% 47.4%
2013 46.3% 59.2% 34.3% 48.9%
2012 45.9% 57.1% 32% 60%
2011 45.7% 49% 32.6% 51.9%
2010 46.7% 45.1% 28.4% 44.7%
2009 51.5% 43.9% 23.9% 39.7%
2008 51.2% 34.2% 24% 34%
2007 43.9% 31.8% 23.2% 37.8%
2006 42.6% 36.7% 25.6% 39.6%
2005 38.2% 38.6% 19.8% 43.3%
2004 40% 45.4% 19.3% 52.2%
2003 43.3% 48.6% 20% 56.2%
2002 37.5% 85.7% 21.3% 60.7%
2001 - - 19.1% 53.4%
2000 - - 20% 43.6%
1999 - - 18.8% 38.4%

Data sources: International Monetary Fund (IMF) | Fiscal Monitor (1999–2025, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

In 2025, Montenegro's government spending was $4.05B, accounting for 43.9% of its GDP, while Tonga spent $318M, or 46.8% of GDP.

Debt-to-GDP ratio is 67.1% in Montenegro and 27.4% in Tonga, ranking 63/185 and 162/185, respectively.

Government deficit by year

Deficit/surplus
Montenegro

Tonga
1x
Year Deficit/surplus, % of GDP
Montenegro Tonga
2025 -3.61% 4.86%
2024 -3.44% 3.6%
2023 0.38% 5.28%
2022 -4.05% -0.09%
2021 -1.37% -0.87%
2020 -10.9% 5.15%
2019 -1.74% 3.2%
2018 -6.3% 2.9%
2017 -6.89% 3.58%
2016 -6.21% 1.47%
2015 -6.03% -2.75%
2014 -0.7% 6.38%
2013 -4.54% -1.3%
2012 -5.87% -1.74%
2011 -6.79% -6.02%
2010 -4.88% -1.22%
2009 -6.74% 6.85%
2008 -2.3% 2.14%
2007 8.44% 5.39%
2006 4.34% 1.34%
2005 -1.42% 4.23%
2004 -2.45% 4.23%
2003 -4.06% 2.37%
2002 -1.44% 2.59%
2001 - 2.23%
2000 - 1.35%
1999 - 1.55%

Data sources: International Monetary Fund (IMF) | Fiscal Monitor (1999–2025, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

In 2025, Montenegro's government deficit, the difference between spending and revenue, was $334M, equivalent to 3.61% of GDP. This compares to Tonga's surplus of $33M, or 4.86% of GDP.

Over the past 24 years, Montenegro recorded a fiscal deficit in 21 of those years, while Tonga ran a deficit in 7 years. On average, Montenegro posted an annual deficit equal to 3.27% of GDP, compared to surplus of 2.15% of GDP for Tonga.

Inflation comparison by year

Inflation
Montenegro

Tonga
1x
Year Consumer prices inflation
Montenegro Tonga
2025 3.9% 5.59%
2024 3.3% 3.18%
2023 8.6% 6.35%
2022 13% 11%
2021 2.4% 5.64%
2020 -0.3% -0.35%
2019 0.4% 1.18%
2018 2.6% 5.03%
2017 2.4% 7.52%
2016 -0.3% 2.58%
2015 1.5% -1.05%
2014 -0.7% 2.51%
2013 2.2% 0.78%
2012 4.1% 1.15%
2011 3.5% 6.27%
2010 0.4% 3.53%
2009 3.6% 1.43%
2008 9% 10.4%
2007 3.4% 5.84%
2006 2.1% 6.15%
2005 3.4% 8.67%
2004 3.1% 11%
2003 7.5% 11.6%
2002 19.7% 10.4%
2001 23.7% 8.29%
2000 29.9% 6.33%
1999 - 4.46%
1998 - 3.27%
1997 - 2.12%

Data sources: World Bank | Economy & Growth (1997–2025, retrieved 2026-07-08); International Monetary Fund (IMF) | World Economic Outlook (2000–2025, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

Over the past 26 years, Montenegro has recorded an average annual inflation rate of 5.86%, compared with 5.42% in Tonga. In 2025, inflation was 3.9% in Montenegro and 5.59% in Tonga.

Balance of trade

Montenegro Tonga
Current account balance
-$1.88B
2025
-$43.5M
2024
Current account balance ranking
140/190
2025
76/190
2024
Current account balance, % of GDP
-20.4%
2025
-6.72%
2024
Goods imports
$4.91B
2025
$232M
2024
Goods exports
$663M
2025
$10.8M
2024
Service imports
$1.24B
2025
$161M
2024
Service exports
$3.07B
2025
$93.6M
2024
Imports of goods and services, % of GDP
65.7%
2025
60.7%
2024
Exports of goods and services, % of GDP
40.1%
2025
16.9%
2024

Economic freedom indices

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

Montenegro Tonga
Economic freedom 63.8 58.9
Economic freedom ranking 78/197 107/197
Property rights 60.9 71.1
Government integrity 49.9 45.1
Judicial effectiveness 51.5 64.9
Tax burden 88.7 85.6
Government spending 47.6 31
Fiscal health 86.2 97.3
Business freedom 68.4 59.2
Labor freedom 59.4 55.9
Monetary freedom 75.2 61
Trade freedom 78.4 75.4
Investment freedom 50 40
Financial freedom 50 20

Economic freedom comparison by year

Montenegro
Tonga
1x
Year Economic freedom index
Montenegro Tonga
2026 63.8 58.9
2025 63.8 58.5
2024 59.7 59.2
2023 60.9 60
2022 57.8 60.8
2021 63.4 57.5
2020 61.5 58.8
2019 60.5 57.7
2018 64.3 63.1
2017 62 63
2016 64.9 59.6
2015 64.7 59.3
2014 63.6 58.2
2013 62.6 56
2012 62.5 57
2011 62.5 55.8
2010 63.6 53.4
2009 58.2 54.1
2008 - -
2007 - -
2006 - -
2005 - -
2004 - -
2003 43.5 -
2002 46.6 -

Data sources: The Heritage Foundation | Economic Freedom Index (2002–2026, retrieved 2026-07-08).

GeoRank.org/economy/montenegro/tonga | CC BY

The Economic Freedom Index for Montenegro is 63.8, ranking 78/197, compared to 58.9 for Tonga, ranking 107/197. The chart above displays a comparison of annual changes in economic freedom indexes.

Other economic metrics

Montenegro Tonga
Services, % of GDP
63.4%
2025
49.5%
2024
Industry, % of GDP
11.3%
2025
17.7%
2024
Agriculture, forestry, and fishing, % of GDP
3.37%
2025
18.6%
2024
GNI, Atlas method
$8.82B
2025
$709M
2025
GNI per capita, PPP
$35,700
2025
$9,240
2025
Total reserves including gold
$2.2B
2025
$413M
2025
Total reserves ranking
126/177
2025
162/177
2025
Net foreign direct investment
-$601M
2025
$13.3M
2024
Net inflows of foreign direct investment
$599M
2024
-$12.1M
2024
Net outflows of foreign direct investment
$67.8M
2024
$1.25M
2024
Servicing debt to the IMF, % of GNI
15%
2024
6.33%
2024
Poverty at national poverty lines
20%
2023
20.6%
2021
Gross capital formation, % of GDP
26.9%
2025
26.4%
2024

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/montenegro/tonga | CC BY

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Data sources:

  1. World Bank | Economy & Growth (1975–2025, retrieved 2026-07-08)
  2. International Monetary Fund (IMF) | Fiscal Monitor (1999–2025, retrieved 2026-07-08)
  3. The Heritage Foundation | Economic Freedom Index (2002–2026, retrieved 2026-07-08)
  4. U.S. Census Bureau (1985–2025, retrieved 2026-07-08)
  5. United Nations | World Population Prospects (2026, retrieved 2026-07-08)
  6. 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.