Dominica vs Tonga

Dominica and Tonga are almost exactly the same size.

DominicaTongaDominica moved onto Tonga · Equal-area projection
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1.0×
Dominica is 1.0× the area of Tonga.
DominicaTonga
Size
AreaAbout the same area751 km²#174 of 194749 km²#175 of 194
CoastlineCoast, no land borderCoast, no land border
Land neighbours00
People
PopulationTonga: 1.57× the population65,871#186 of 194 · 2025103,742#182 of 194 · 2025
DensityTonga: 1.58× the density88 / km²#98 of 194139 / km²#65 of 194
Urban populationDominica: 3.49× the urban share74%#61 of 192 · 202521%#186 of 192 · 2025
Fertility rateTonga: 2.09× the births per woman1.48 per woman#138 of 192 · 20243.10 per woman#52 of 192 · 2024
Population growthTonga: 0.09 points higher−0.51%#181 of 192 · 2025−0.42%#177 of 192 · 2025
Birth rateTonga: 2.09× the birth rate11.0 per 1,000#125 of 192 · 202423.0 per 1,000#58 of 192 · 2024
Death rateDominica: 1.97× the death rate12.6 per 1,000#14 of 192 · 20246.4 per 1,000#125 of 192 · 2024
Children under 15Tonga: 17.3 points higher17.6%#134 of 192 · 202534.9%#51 of 192 · 2025
People over 65Dominica: 6.3 points higher13.2%#61 of 192 · 20256.9%#102 of 192 · 2025
Net migrationDominica: 17.0 per 1,000 higher−3.7 per 1,000#166 of 192 · 2025−20.7 per 1,000#190 of 192 · 2025
Refugees abroadDominica: 2.33× the refugees for its size1.47 per 1,000#51 of 190 · 20250.63 per 1,000#72 of 190 · 2025
Health & education
Life expectancyTonga: 1.8 years longer71.3 years#122 of 192 · 202473.1 years#103 of 192 · 2024
Infant mortalityDominica: 4.27× the infant mortality33.3 per 1,000 births#39 of 191 · 20247.8 per 1,000 births#125 of 191 · 2024
DoctorsDominica: 1.15× the doctors per person1.16 per 1,000#102 of 178 · 20181.01 per 1,000#108 of 178 · 2021
University enrolment—42.9%#87 of 145 · 2023
Human Development IndexTonga: 0.008 higher0.761#97 of 190 · 20230.769#91 of 190 · 2023
Economy
GNI per capitaDominica: 1.56× the income per person$10,690#77 of 185 · 2025$6,840#97 of 185 · 2025
GDPDominica: 1.07× the economy$724M2025$679M2025
Income groupUpper-middle incomeUpper-middle income
GDP per capita (PPP)Dominica: 2.62× the output per person$22,713#84 of 184 · 2025$8,675#133 of 184 · 2025
GDP growthDominica: 0.3 points higher+3.1%#96 of 187 · 2025+2.8%#108 of 187 · 2025
InflationTonga: 3.1 points higher+2.5%#99 of 176 · 2025+5.6%#37 of 176 · 2025
Unemployment—2.0%#162 of 178 · 2025
Extreme poverty—0.4%#107 of 149 · 2021
Income inequality (Gini)—27.1#135 of 149 · 2021
Jobs in agriculture—23.6% of jobs#75 of 178 · 2025
Jobs in industry—23.3% of jobs#52 of 178 · 2025
Jobs in services—53.0% of jobs#104 of 178 · 2025
Foreign investmentDominica: 4.2 points higher6.8% of GDP#26 of 184 · 20252.6% of GDP#73 of 184 · 2025
Exports—16.9% of GDP#142 of 168 · 2024
Internet usersDominica: 1.22× the share online82%#91 of 184 · 202467%#124 of 184 · 2024
Mobile subscriptionsDominica: 1.37× the mobile subscriptions85 per 100#146 of 191 · 202262 per 100#171 of 191 · 2022
Energy & environment
Forest areaDominica: 6.31× the forest share76% of land#8 of 192 · 202412% of land#143 of 192 · 2024
CO₂ per personTonga: 1.28× the CO₂ per person1.27 t a year#121 of 185 · 20241.63 t a year#110 of 185 · 2024
Renewable energyDominica: 6.6 points higher8.9%#147 of 190 · 20222.3%#165 of 190 · 2022
Access to electricityThe same100.0%#1 of 192 · 2024100.0%#1 of 192 · 2024
Air pollution (PM2.5)Dominica: 2.45× the air pollution11.5 µg/m³#142 of 191 · 20234.7 µg/m³#186 of 191 · 2023
Protected landDominica: 8.1 points higher21.4% of land#76 of 191 · 202513.3% of land#127 of 191 · 2025
Arable landTonga: 23.0 points higher7.3% of land#115 of 190 · 202430.3% of land#28 of 190 · 2024
Water stress10.0%#91 of 176 · 2022—
Precipitation2,083 mm#28 of 180 · 2022—
Governance & safety
Political stabilityTonga: 0.33 higher+0.98#36 of 193 · 2025+1.31#11 of 193 · 2025
Control of corruptionDominica: 0.96 higher+0.54#56 of 193 · 2025−0.42#114 of 193 · 2025
Homicide rateDominica: 30.1× the homicide rate27.1 per 100,000#12 of 146 · 20230.9 per 100,000#110 of 146 · 2019
State
StatusIndependent stateIndependent state
GovernmentParliamentary republicConstitutional monarchy
CapitalRoseauNuku'alofa
CurrencyEastern Caribbean dollar (XCD)Tongan paʻanga (TOP)
Official languagesEnglishEnglish, Tongan
Traffic drivesOn the leftOn the left
Time zoneUTC−4UTC+13
Calling code+1 767+676
RegionCaribbean, North AmericaPolynesia, Oceania

Area: Wikidata. Population, income, health, economy, environment and governance: World Bank. Human Development Index: UNDP. Government: CIA World Factbook. Ranks among the 194 independent states. All sources

Why the map you grew up with disagrees

On a Mercator map, area grows with distance from the equator. Dominica sits at about 15° N and is stretched to 1.08× its true area; Tonga at 20° S is stretched to 1.14×. Here the two are distorted about the same amount, so Mercator gets this pair roughly right. The figure above uses the Equal Earth projection, where every square kilometre is drawn the same size.

Questions about this pair

Is Dominica bigger than Tonga?
Yes. Dominica and Tonga are almost exactly the same size. Dominica covers 751 km² and Tonga covers 749 km².
How many times does Tonga fit into Dominica?
About 1.0 times: Dominica has 1.0× the area of Tonga.
Why do Dominica and Tonga look different on Google Maps?
Web maps use the Mercator projection, which stretches area with distance from the equator. Dominica is drawn about 1.08× its true area there and Tonga about 1.14×. For this pair the distortion is similar, so Mercator gets the comparison roughly right. Kartavera uses Equal Earth, where every square kilometre is drawn the same size.
Which has more people, Dominica or Tonga?
Tonga: 103,742 people against 65,871. Density: Dominica 88 per km², Tonga 139 per km².
Which is richer, Dominica or Tonga?
By gross national income per person, Dominica: $10,690 against $6,840 (World Bank, Atlas method, 2025) — 1.56× as much.
Where do people live longer, Dominica or Tonga?
In Tonga: life expectancy at birth is 73.1 years, against 71.3 — 1.8 years longer (World Bank, 2024).
What kind of government do Dominica and Tonga have?
By constitution, as the CIA World Factbook describes them — Dominica: parliamentary republic; Tonga: constitutional monarchy.