What Is the Smallest Country in the World?
The short answer is Vatican City — 0.44 km², smaller than most city parks. But the full answer is more fascinating than you’d expect. Here’s everything you need to know about the world’s tiniest nations.
The Quick Answer: Vatican City
The smallest country in the world is:
Smallest country by area and population
Vatican City is an independent city-state and the headquarters of the Roman Catholic Church. At 0.44 km², it is smaller than Central Park in New York City.
Vatican City is the world’s smallest country by both area and population. Quick summary:
- · Smallest by area: Vatican City (0.44 km²)
- · Smallest by population: Vatican City (~800 people)
- · Second smallest by area: Monaco (2.02 km²)
- · Second smallest by population: Nauru (~10,800 people)
- · Smallest in Asia: Maldives (298 km²)
- · Smallest in Africa: Seychelles (455 km²)
- · Smallest in the Americas: Saint Kitts & Nevis (261 km²)
- · Smallest in Oceania: Nauru (21 km²)
Top 10 Smallest Countries in the World by Area
Ranked from smallest to largest — these are the world’s most compact sovereign nations.
About 62 football fields; walk across it in roughly 20 minutes.
The world’s most densely populated sovereign country.
The world’s smallest island nation.
A low-lying Pacific nation facing sea-level risk.
Often described as the world’s oldest republic.
One of only two doubly landlocked countries.
29 atolls and 5 islands across a huge ocean area.
The smallest sovereign state in the Americas.
The world’s lowest-lying country.
The European Union’s smallest member state.
Top 10 Smallest Countries by Population
The world’s least populous sovereign nations — some have fewer residents than a small town.
The smallest country by both area and population.
The world’s smallest island nation.
Has pursued a digital nation strategy as sea levels rise.
Its capital, Ngerulmud, is one of the least populous capitals.
A tiny republic entirely surrounded by Italy.
The densest sovereign country on Earth.
Has no airport and no standing army.
A Pacific state facing severe climate risk.
The smallest sovereign state in the Americas.
Known as the Nature Isle of the Caribbean.
Vatican City — The World’s Smallest Country
A sovereign nation of 0.44 km² that commands the spiritual allegiance of about 1.3 billion Catholics and the diplomatic attention of 184 states.
Vatican City State / Holy See
Vatican City is the world’s smallest country by every measure — but its influence is inversely proportional to its size. The headquarters of the Roman Catholic Church, it sits inside Rome while operating as a sovereign state with its own legal system, passport, post office, police, and diplomatic identity.
The Vatican’s origins as a sovereign state are surprisingly recent. For centuries, Popes ruled the Papal States across central Italy. Italian unification absorbed those territories in the 19th century, and the papacy entered a long standoff with the Italian state.
That standoff ended on February 11, 1929, with the Lateran Treaty. Italy recognized Vatican City as independent, while the Holy See recognized Italy. The result was a country of just 0.44 km² containing St. Peter’s Basilica, the Sistine Chapel, the Vatican Museums, the Apostolic Palace, and the Vatican Gardens.
Vatican City has its own everything
Despite its tiny size, Vatican City has its own post office, stamps, radio station, newspaper, pharmacy, railway station, police force, and passport system.
The Swiss Guard is the oldest active military unit
Founded in 1506, the Pontifical Swiss Guard still protects the Pope while combining ceremonial Renaissance uniforms with modern security duties.
The Vatican Museums contain about 70,000 works
The collection includes the Sistine Chapel, Raphael’s Rooms, the Gallery of Maps, and one of the world’s most visited art routes per square kilometer.
Its crime rate is statistically strange
Tourist pickpocketing against a tiny resident base can make Vatican City look unusually high in per-capita crime, even though residents commit very little of it.
The Pope is an absolute monarch
Vatican City is one of the world’s last absolute monarchies: the Pope holds supreme legislative, executive, and judicial authority within the state.
How Small Is 0.44 km²? Size Comparisons
0.44 km² is almost impossible to visualize. Here are comparisons that make it real.
Vatican City vs Central Park
- → Vatican City: 0.44 km²
- → Central Park: 3.41 km²
- → Central Park is about 7.7× larger than Vatican City.
Vatican City vs The Pentagon
- → Pentagon building footprint: about 0.034 km²
- → The wider Pentagon complex is about 0.57 km².
- → That full complex is slightly larger than Vatican City.
Vatican City vs New York City
- → New York City: about 783.8 km²
- → NYC is roughly 1,781× larger.
- → Vatican City is closer to a neighborhood-scale place than a city-scale one.
Walking across Vatican City
- → Roughly 1 km wide at its broadest point.
- → You can walk across it in about 20 minutes.
- → The country has only a tiny road network.
Vatican City vs sports venues
- → Vatican City can fit several major stadium complexes.
- → The Vatican Gardens alone are larger than many sports venues.
- → Its scale is compact but not merely a building.
Tiny area, global reach
- → Area: 0.44 km².
- → Catholics worldwide: about 1.3 billion.
- → Diplomatic relations: 184 states.
Area Comparison (approximately to scale)
Vatican
0.44 km²
Monaco
2 km²
Central Park
3.41 km²
San Marino
61 km²
Singapore
728 km²
* Blocks are approximate visual aids, not survey-grade scale drawings.
The World’s Micro-States
Countries so small they seem impossible — yet each is fully sovereign, with its own government, identity, and passport.
Vatican City
World’s smallest country by every measure
The world’s smallest country is also one of its most influential. The Holy See maintains diplomatic relations with 184 states, while Vatican City contains St. Peter’s Basilica, the Sistine Chapel, the Vatican Museums, and the Apostolic Palace.
Notable: Own stamps, coins, radio station, newspaper, pharmacy, and railway station.
Explore Vatican CityMonaco
World’s most densely populated country
Monaco compresses a sovereign state, luxury harbor, royal palace, dense apartments, and a Formula 1 street circuit into just over two square kilometers. Its tax system and Riviera location make it a magnet for wealthy residents.
Notable: No income tax, Monaco Grand Prix, Prince Albert II as head of state.
Explore MonacoSan Marino
Often called the world’s oldest republic
San Marino traces its founding tradition to 301 CE and is entirely surrounded by Italy. Its two Captains Regent serve as co-heads of state for six-month terms, a compact institutional tradition with medieval roots.
Notable: Old republic, two co-heads of state, Mount Titano, surrounded by Italy.
Explore San MarinoLiechtenstein
One of only two doubly landlocked countries
Liechtenstein sits between Switzerland and Austria, both landlocked, making it doubly landlocked. Despite its small size, it is one of the world’s wealthiest countries per capita and has no airport or standing army.
Notable: No army since 1868, no airport, strong finance and manufacturing base.
Explore LiechtensteinNauru
World’s smallest island nation
Nauru’s phosphate boom once made it extraordinarily wealthy per capita. When deposits were depleted and wealth was mismanaged, the country became a cautionary tale about resource dependence and environmental damage.
Notable: No official capital, phosphate history, heavy dependence on external support.
Explore NauruTuvalu
Earns important revenue from the .tv domain
Tuvalu is one of the most climate-vulnerable countries on Earth. Its average elevation is only a few meters above sea level, while its .tv country-code domain has become a rare digital asset with global value.
Notable: .tv domain revenue, climate frontline, digital nation project.
Explore TuvaluThe Smallest Country on Each Continent
Every continent has its own record-holder for the smallest sovereign nation.
Also notable: Monaco, San Marino, Liechtenstein, Andorra
Europe has the most micro-states of any continent, and Vatican City is smaller than many parks.
Also notable: Singapore, Bahrain, Brunei
The Maldives consists of 1,192 coral islands and is the world’s lowest-lying country.
Also notable: Grenada, Saint Vincent & Grenadines
This two-island Caribbean nation is the smallest sovereign state in the Americas.
Also notable: Uruguay, Guyana
South America has no micro-states; even its smallest country is larger than many European states.
Also notable: São Tomé & Príncipe, Comoros
Seychelles is an Indian Ocean archipelago with high income levels and exceptional biodiversity.
Also notable: Tuvalu, Palau
Nauru is both Oceania’s smallest country and the world’s smallest island nation.
Surprising Facts About the World’s Smallest Countries
Small in size, enormous in stories.
🇱🇮 Liechtenstein’s army returned with 81 men
The famous story says 80 soldiers left for the Austro-Prussian War and returned with 81 after making a friend. Whether embellished or not, Liechtenstein abolished its army in 1868 and has had no standing military for more than 150 years.
🇻🇦 Vatican City has a counterintuitive crime statistic
Because millions of tourists visit a country with only about 800 residents, petty theft can create an unusually high per-capita crime statistic. The crimes are overwhelmingly visitor-related pickpocketing, not resident behavior.
🇲🇨 Monaco turns city streets into an F1 circuit
The Monaco Grand Prix uses the principality’s public streets, making the country itself part of the race. For one weekend, ordinary roads become one of motorsport’s most famous circuits.
🇸🇲 San Marino has more vehicles than people
San Marino is known for very high vehicle ownership and registration rates, helped by tax advantages and day-trip traffic from surrounding Italy.
🇹🇻 Tuvalu earns money from .tv
Tuvalu’s country-code domain is valuable to television, streaming, and media brands. For a climate-vulnerable country with few resources, digital naming rights are a major asset.
🇳🇷 Nauru was once extremely wealthy per capita
Phosphate mining once made Nauru one of the richest countries per person. Depletion, environmental damage, and mismanagement turned that boom into a long-term cautionary tale.
Frequently Asked Questions
Everything about the world’s smallest countries.
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This answer page uses the same 195-country education standard as the site’s world countries reference, with page-specific corrections for Vatican City’s commonly cited 0.44 km² area.