Asia Capitals Quiz
Test your knowledge of Asian countries and their capital cities.
Capital Cities
Population Boundary
The World’s Smallest Capital Cities
The world’s smallest capital city by resident population is usually considered Ngerulmud, the capital of Palau, because it is mainly a government complex with no separately recorded permanent city population. If city-states are included, Vatican City is the smallest capital that is also an entire sovereign country.
A purpose-built seat of government on Babeldaob Island, not a large residential city.
The whole country functions as the capital, so normal city-versus-country boundaries do not apply.
Often treated as a de facto capital, but Nauru has no officially designated capital city.
How This Ranking Is Measured
“Smallest capital” can mean population, land area, city proper, municipality, urban area or metropolitan area. This article ranks capitals mainly by resident population inside the capital city, municipality, capital district or closest official local boundary, not by wider metro area or daytime visitors.
The list focuses on people living in the capital area, not tourists, commuters or government workers who only visit during the day.
For some capitals, the best comparable unit is a municipality, capital district, atoll, castello or local council area.
Small countries do not all publish capital-level data in the same year, so the ranking should be read as a carefully bounded comparison.
Top 3 Smallest Capital Cities
Ngerulmud
Country: Palau
Population reading: no separately recorded permanent city population
Why it ranks here: it is a national capital and seat of government, but it functions more like an administrative complex than a normal city.
Vatican City
Country: Vatican City State
Population reading: about 882 residents
Why it ranks here: it is both a sovereign state and its own capital, enclosed within Rome.
City of San Marino
Country: San Marino
Population reading: about 4,130 residents in the Castello di San Marino
Why it ranks here: the capital is a small mountain settlement, while larger population areas exist elsewhere in the country.
Smallest Capital Cities by Resident Population
The table below uses the smallest practical capital boundary available. Where a source uses an estimate or a broader urban area, the note explains the boundary so the ranking is not confused with metro population.
| Rank | Capital City | Country | Population Used | Boundary / Data Type | Region | Key Note |
|---|---|---|---|---|---|---|
| 1 | Ngerulmud | Palau | 0 permanent city population / not separately recorded | Capital settlement / seat of government | Oceania | Purpose-built administrative capital in Melekeok State; Koror remains the main economic center. |
| 2 | Vatican City | Vatican City State | 882 | Whole city-state / resident population | Europe | A unique case because the capital and the sovereign state are the same place. |
| 3 | City of San Marino | San Marino | about 4,130 | Castello / local administrative unit | Europe | The capital sits on Mount Titano; Serravalle is the country’s larger population center. |
| 4 | Valletta | Malta | about 5,226 | Local council / city proper | Europe | Very small city proper, but the surrounding Malta urban area is much larger. |
| 5 | Vaduz | Liechtenstein | about 6,000 | Municipality | Europe | Vaduz is the capital, but Schaan is usually the larger municipality by population. |
| 6 | Funafuti | Tuvalu | about 6,602 | Capital atoll / census region | Oceania | Funafuti is an atoll capital; population is concentrated especially around Fongafale. |
| 7 | Castries | Saint Lucia | about 6,926 | City proper in census reporting | Caribbean | The wider Castries district and metropolitan area are much larger than the city proper. |
| 8 | Palikir | Federated States of Micronesia | about 7,000 | Capital town / estimate | Oceania | Palikir is the national capital, while population and services are tied closely to Pohnpei and nearby settlements. |
| 9 | Basseterre | Saint Kitts and Nevis | about 14,000–17,000 | Capital city / estimate range | Caribbean | A small coastal capital and port city on Saint Kitts. |
| 10 | Roseau | Dominica | about 14,725–15,000 | City proper / census and estimate range | Caribbean | Compact capital on Dominica’s southwest coast, near the Roseau River. |
| 11 | Belmopan | Belize | about 23,000 | Capital city / recent estimate | Central America | A planned inland capital built after Belize City proved vulnerable to hurricane damage. |
| 12 | Andorra la Vella | Andorra | about 24,000–26,000 | Parish / capital municipality | Europe | A high-altitude Pyrenean capital; small by global standards but larger than the micro-capitals above. |
Data note: This is not a metro-area ranking. For example, Valletta’s city proper is tiny, but the wider urban area around Malta’s harbour region is far larger. Castries also changes rank depending on whether the city proper, district or metro area is used.
Special Case: Yaren and Nauru
Why Yaren Is Not Ranked Like a Normal Capital
Yaren is important in any discussion of the world’s smallest capitals because it functions as Nauru’s government center. However, it is more accurate to describe it as a de facto seat of government, not a formal capital city. That is why it should be shown as a special case rather than mixed into a clean official-capital ranking.
| Place | Status | Approximate Population Boundary | How to Describe It |
|---|---|---|---|
| Yaren | De facto seat of government | District / census boundary | Use “de facto capital” or “government district,” not simply “official capital.” |
| Nauru | No official capital | Whole island country divided into districts | The country is small enough that a formal capital designation is unusual compared with most states. |
Why Are Some Capital Cities So Small?
Some capitals exist mainly to host parliament, ministries or courts rather than to become the country’s largest urban center.
In San Marino, Liechtenstein and Vatican City, the national scale itself is small, so even politically important places may have few residents.
Pacific and Caribbean capitals often sit on small islands, coastal strips, atolls or compact port areas where land is limited.
Capital vs Largest City: Common Small-Capital Pattern
Many of the world’s smallest capitals are not the largest city in their country. Their role is political or symbolic, while commerce, population growth and transport may be concentrated somewhere else.
| Country | Small Capital | Often Larger / More Populated Center | Why This Matters |
|---|---|---|---|
| Palau | Ngerulmud | Koror | Koror remains the main commercial and population center, while Ngerulmud is the government seat. |
| San Marino | City of San Marino | Serravalle / Dogana area | The capital is historically symbolic, but larger residential concentrations exist elsewhere. |
| Liechtenstein | Vaduz | Schaan | Vaduz hosts national institutions, while Schaan is usually larger by municipality population. |
| Belize | Belmopan | Belize City | Belmopan was planned inland after hurricane risk affected the former coastal capital. |
Smallest by Population vs Smallest by Land Area
Smallest by Population
Ngerulmud is the strongest answer when the question means resident population of an official national capital. It has capital functions but almost no ordinary city population.
Smallest by Land Area
Vatican City is the clearest answer when the question means a capital that is also a sovereign city-state. Its area is only about 0.49 km².
Smallest EU Capital
Valletta is usually described as the smallest capital in the European Union by city area and one of the smallest by city-proper population.
Do not mix these categories without explaining the metric. A capital can be tiny by land area but still have a higher population density, or tiny by population because it is mostly an administrative seat.
Quick Profiles of the Smallest Capitals
A rare example of a national capital that is more like a government campus than a normal city. It replaced Koror as Palau’s capital in 2006.
A sovereign city-state, religious center and capital in one. Its permanent population is small, but daily visitors and workers are far more numerous.
A historic mountain capital on Monte Titano, with a small resident population compared with its national importance.
A compact fortified capital with a very small city proper, but a much larger surrounding urban region.
A small Alpine capital and seat of national institutions, but not the country’s largest municipality by population.
An atoll capital where the physical geography of low-lying islands strongly shapes settlement and infrastructure.
FAQ About the World’s Smallest Capital Cities
What is the smallest capital city in the world?
By resident population, the usual answer is Ngerulmud, Palau. It is an official national capital and seat of government, but it has no normal large residential city population.
Is Vatican City the smallest capital?
Vatican City is the smallest capital if the comparison is about a capital that is also an entire sovereign city-state. By population, it has fewer than 1,000 residents, but it is a special case because the capital and the country are the same territory.
Does Nauru have a capital city?
Nauru has no officially designated capital city. Yaren is commonly described as the de facto capital or government district because important government offices are located there.
Why do some lists rank these capitals differently?
Lists differ because they use different boundaries: city proper, municipality, urban area, metro area, atoll, district or capital region. They may also include or exclude city-states, territories and de facto capitals.
What is the smallest capital in Europe?
If city-states are included, Vatican City is the smallest. If the focus is on non-city-state capitals, San Marino, Valletta and Vaduz are among the smallest by resident population.
What is the smallest capital in the Americas?
Among sovereign states, small Caribbean capitals such as Castries, Basseterre and Roseau rank very low by city-proper population. For continental Central America, Belmopan is one of the smallest capital cities by population.
Sources and Data Notes
Population figures are based on official statistical offices where available, with recognized country references or estimate-style sources used only where capital-level figures are not published in a single comparable format.
| Vatican City | Vatican City State population information |
|---|---|
| San Marino | Castello di San Marino data and Office of Statistics note |
| Malta / Valletta | Malta National Statistics Office population tables |
| Tuvalu / Funafuti | Tuvalu Population and Housing Census 2022–23 |
| Liechtenstein / Vaduz | Liechtenstein in Figures 2026 |
| Nauru / Yaren | Britannica note on Nauru and Yaren government offices |
| Palau / Ngerulmud | Palau National Capitol address in Ngerulmud |
| Saint Lucia / Castries | Saint Lucia 2022 Population and Housing Census release |
Because capital-level data is not standardized globally, this article avoids absolute wording where the available number depends on a city boundary, district boundary, census region or estimate method.
