Saint Lucia vs Tonga
Tonga is 21% larger than Saint Lucia.
Saint LuciaTongaSaint Lucia moved onto Tonga · Equal-area projection
0.82×
Saint Lucia is 0.82× the area of Tonga. Put the other way, Tonga is 1.21× the size of Saint Lucia.
 Saint Lucia |  Tonga | |
|---|---|---|
| Size | ||
| AreaTonga: 1.21× the area | 617 km²#178 of 194 | 749 km²#175 of 194 |
| Coastline | Coast, no land border | Coast, no land border |
| Land neighbours | 0 | 0 |
| People | ||
| PopulationSaint Lucia: 1.74× the population | 180,149#177 of 194 · 2025 | 103,742#182 of 194 · 2025 |
| DensitySaint Lucia: 2.11× the density | 292 / km²#29 of 194 | 139 / km²#65 of 194 |
| Urban populationSaint Lucia: 1.37× the urban share | 29%#172 of 192 · 2025 | 21%#186 of 192 · 2025 |
| Fertility rateTonga: 2.23× the births per woman | 1.39 per woman#159 of 192 · 2024 | 3.10 per woman#52 of 192 · 2024 |
| Population growthSaint Lucia: 0.65 points higher | +0.23%#149 of 192 · 2025 | −0.42%#177 of 192 · 2025 |
| Birth rateTonga: 2.05× the birth rate | 11.2 per 1,000#119 of 192 · 2024 | 23.0 per 1,000#58 of 192 · 2024 |
| Death rateSaint Lucia: 1.36× the death rate | 8.7 per 1,000#58 of 192 · 2024 | 6.4 per 1,000#125 of 192 · 2024 |
| Children under 15Tonga: 17.7 points higher | 17.2%#139 of 192 · 2025 | 34.9%#51 of 192 · 2025 |
| People over 65Saint Lucia: 3.1 points higher | 10.0%#78 of 192 · 2025 | 6.9%#102 of 192 · 2025 |
| Net migrationSaint Lucia: 20.6 per 1,000 higher | −0.1 per 1,000#78 of 192 · 2025 | −20.7 per 1,000#190 of 192 · 2025 |
| Refugees abroadSaint Lucia: 1.75× the refugees for its size | 1.10 per 1,000#56 of 190 · 2025 | 0.63 per 1,000#72 of 190 · 2025 |
| Health & education | ||
| Life expectancyTonga: 0.3 years longer | 72.8 years#105 of 192 · 2024 | 73.1 years#103 of 192 · 2024 |
| Infant mortalitySaint Lucia: 2.03× the infant mortality | 15.8 per 1,000 births#79 of 191 · 2024 | 7.8 per 1,000 births#125 of 191 · 2024 |
| DoctorsSaint Lucia: 4.19× the doctors per person | 4.23 per 1,000#25 of 178 · 2020 | 1.01 per 1,000#108 of 178 · 2021 |
| University enrolmentTonga: 2.86× the university enrolment | 15.0%#121 of 145 · 2023 | 42.9%#87 of 145 · 2023 |
| Human Development IndexTonga: 0.021 higher | 0.748#102 of 190 · 2023 | 0.769#91 of 190 · 2023 |
| Economy | ||
| GNI per capitaSaint Lucia: 1.96× the income per person | $13,410#71 of 185 · 2025 | $6,840#97 of 185 · 2025 |
| GDPSaint Lucia: 3.91× the economy | $2.66B2025 | $679M2025 |
| Income group | Upper-middle income | Upper-middle income |
| GDP per capita (PPP)Saint Lucia: 3.31× the output per person | $28,674#71 of 184 · 2025 | $8,675#133 of 184 · 2025 |
| GDP growthTonga: 3.4 points higher | −0.6%#177 of 187 · 2025 | +2.8%#108 of 187 · 2025 |
| InflationTonga: 3.6 points higher | +2.0%#120 of 176 · 2025 | +5.6%#37 of 176 · 2025 |
| UnemploymentSaint Lucia: 4.75× the unemployment | 9.5%#36 of 178 · 2025 | 2.0%#162 of 178 · 2025 |
| Extreme povertyTonga: 4.0× the share in extreme poverty | 0.1%#126 of 149 · 2015 | 0.4%#107 of 149 · 2021 |
| Income inequality (Gini)Saint Lucia: 16.6 higher | 43.7#21 of 149 · 2015 | 27.1#135 of 149 · 2021 |
| Jobs in agricultureTonga: 16.1 points higher | 7.5% of jobs#120 of 178 · 2025 | 23.6% of jobs#75 of 178 · 2025 |
| Jobs in industryTonga: 7.1 points higher | 16.2% of jobs#127 of 178 · 2025 | 23.3% of jobs#52 of 178 · 2025 |
| Jobs in servicesSaint Lucia: 23.3 points higher | 76.3% of jobs#27 of 178 · 2025 | 53.0% of jobs#104 of 178 · 2025 |
| Foreign investmentSaint Lucia: 4.7 points higher | 7.3% of GDP#24 of 184 · 2025 | 2.6% of GDP#73 of 184 · 2025 |
| Exports | — | 16.9% of GDP#142 of 168 · 2024 |
| Internet usersAbout the same share online | 68%#123 of 184 · 2024 | 67%#124 of 184 · 2024 |
| Mobile subscriptionsSaint Lucia: 1.6× the mobile subscriptions | 99 per 100#130 of 191 · 2022 | 62 per 100#171 of 191 · 2022 |
| Energy & environment | ||
| Forest areaSaint Lucia: 2.81× the forest share | 34% of land#90 of 192 · 2023 | 12% of land#143 of 192 · 2024 |
| CO₂ per personSaint Lucia: 1.05× the CO₂ per person | 1.71 t a year#109 of 185 · 2024 | 1.63 t a year#110 of 185 · 2024 |
| Renewable energySaint Lucia: 7.4 points higher | 9.7%#143 of 190 · 2022 | 2.3%#165 of 190 · 2022 |
| Access to electricityThe same | 100.0%#1 of 192 · 2024 | 100.0%#1 of 192 · 2024 |
| Air pollution (PM2.5)Saint Lucia: 2.21× the air pollution | 10.4 µg/m³#152 of 191 · 2023 | 4.7 µg/m³#186 of 191 · 2023 |
| Protected landSaint Lucia: 4.9 points higher | 18.2% of land#92 of 191 · 2025 | 13.3% of land#127 of 191 · 2025 |
| Arable landTonga: 25.9 points higher | 4.4% of land#133 of 190 · 2024 | 30.3% of land#28 of 190 · 2024 |
| Water stress | 14.3%#76 of 176 · 2022 | — |
| Precipitation | 2,301 mm#21 of 180 · 2022 | — |
| Governance & safety | ||
| Political stabilityTonga: 0.18 higher | +1.13#26 of 193 · 2025 | +1.31#11 of 193 · 2025 |
| Control of corruptionSaint Lucia: 0.91 higher | +0.49#62 of 193 · 2025 | −0.42#114 of 193 · 2025 |
| Homicide rateSaint Lucia: 43.3× the homicide rate | 39.0 per 100,000#8 of 146 · 2023 | 0.9 per 100,000#110 of 146 · 2019 |
| State | ||
| Status | Independent state | Independent state |
| Government | Constitutional monarchyparliamentary democracy under a constitutional monarchy; a Commonwealth realm | Constitutional monarchy |
| Capital | Castries | Nuku'alofa |
| Currency | Eastern Caribbean dollar (XCD) | Tongan paʻanga (TOP) |
| Official languages | English | English, Tongan |
| Traffic drives | On the left | On the left |
| Time zone | UTC−4 | UTC+13 |
| Calling code | +1 758 | +676 |
| Region | Caribbean, North America | Polynesia, 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. Saint Lucia sits at about 14° N and is stretched to 1.06× 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 Saint Lucia bigger than Tonga?
- No. Saint Lucia is 18% smaller than Tonga. Saint Lucia covers 617 km² and Tonga covers 749 km².
- How many times does Saint Lucia fit into Tonga?
- About 1.2 times: Tonga has 1.21× the area of Saint Lucia.
- Why do Saint Lucia and Tonga look different on Google Maps?
- Web maps use the Mercator projection, which stretches area with distance from the equator. Saint Lucia is drawn about 1.06× 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, Saint Lucia or Tonga?
- Saint Lucia: 180,149 people against 103,742. Density: Saint Lucia 292 per km², Tonga 139 per km².
- Which is richer, Saint Lucia or Tonga?
- By gross national income per person, Saint Lucia: $13,410 against $6,840 (World Bank, Atlas method, 2025) — 1.96× as much.
- Where do people live longer, Saint Lucia or Tonga?
- In Tonga: life expectancy at birth is 73.1 years, against 72.8 — 0.3 years longer (World Bank, 2024).
- What kind of government do Saint Lucia and Tonga have?
- The same form of government, by constitution: constitutional monarchy (CIA World Factbook).