Vatican City is an independent city-state entirely enclosed within the city of Rome, Italy. It is the smallest internationally recognized sovereign state in the world by both land area and population, and it functions as the administrative and spiritual center of the Roman Catholic Church. The Pope serves as Vatican City’s head of state, and its grounds hold St. Peter’s Basilica, St. Peter’s Square, the Sistine Chapel, and the Vatican Museums.

Key Takeaways

• Vatican City is a sovereign, independent state surrounded entirely by Rome, Italy, with no coastline and only one bordering country.
• It was established by the Lateran Treaty, signed on February 11, 1929, between the Holy See and the Kingdom of Italy, ending a dispute that began when the Kingdom of Italy annexed Rome in 1870.
• The Pope holds supreme legislative, executive, and judicial authority over the state, which is governed day to day through the Pontifical Commission and Governorate of Vatican City State.
• UNESCO inscribed Vatican City on the World Heritage List in 1984, after it became the first site registered under the 1954 Hague Convention’s special protection list in 1960.
• The Holy See, the Church’s central governing authority, holds Permanent Observer status at the United Nations.

Where Is Vatican City Located?

Vatican City sits on Vatican Hill, on the west bank of the Tiber River, inside the city of Rome. Its border follows a line of walls and marked boundaries that separate it from the surrounding Italian capital, making it a landlocked enclave with Italy as its only neighbor. According to UNESCO, the protected cultural property that covers the entire territory of Vatican City spans roughly 440,000 square meters, or about 0.44 square kilometers, centered near coordinates 41 degrees 54′ 06″ N, 12 degrees 26′ 55″ E. That makes the state smaller than most urban parks and far smaller than any other country on Earth.

Despite its small size, the territory contains some of the most visited religious and artistic sites in the world, including St. Peter’s Basilica, which UNESCO describes as the world’s largest religious building, along with the Vatican Palaces, the Vatican Library, and extensive archives.

A Brief History: From the Papal States to the Lateran Treaty

For centuries, the Pope ruled over a much larger territory in central Italy known as the Papal States. That temporal rule ended in 1870, when the Kingdom of Italy annexed Rome during the final stage of Italian unification, leaving the papacy without a recognized sovereign territory for nearly 60 years.

The dispute, often called the Roman Question, was resolved on February 11, 1929, when representatives of the Holy See and the Kingdom of Italy signed the Lateran Treaty. The treaty established the independence and sovereignty of Vatican City State and granted the Roman Catholic Church special status within Italy. February 11 is now observed as Vatican City’s founding date, and the treaty remains the legal basis for the state’s existence.

Government and the Holy See

Vatican City’s governance rests on a distinction that often confuses outsiders: the Holy See is the Catholic Church’s central governing authority, while Vatican City State is the physical territory over which that authority exercises sovereign rule. The Pope holds supreme legislative, executive, and judicial power over the state. Day-to-day administration is carried out through the Pontifical Commission for Vatican City State and the Governorate, which oversees services such as security, infrastructure, and the Vatican Museums.

The Holy See conducts its own diplomacy, maintaining formal relations with governments around the world and holding Permanent Observer status at the United Nations, which allows it to take part in General Assembly proceedings without a vote. In 2025, the papal office changed hands: Cardinal Robert Francis Prevost was elected the 267th pope on May 8, 2025, taking the name Leo XIV.

Vatican City has no general taxation and no broad-based economy of its own. Its finances come largely from museum admissions, publishing, stamp and coin sales, and donations from Catholics worldwide, and it uses the euro under a monetary agreement with the European Union.

Culture, People, and the Catholic Church

Vatican City’s population is small and distinctive, made up mostly of clergy, religious officials, diplomats, and the Swiss Guard, the uniformed corps that has protected the Pope since the early sixteenth century. Italian and Latin are both used in official life, with Latin retaining its historic role as the Church’s formal language.

The Vatican Museums hold one of the world’s most significant collections of art and antiquities, anchored by Michelangelo’s ceiling frescoes in the Sistine Chapel. St. Peter’s Square, designed in the seventeenth century, remains the setting for papal audiences and major liturgical celebrations that draw worldwide broadcast audiences, particularly at Easter and Christmas.

What Vatican City Is Known For

Globally, Vatican City is best known as the home of St. Peter’s Basilica and St. Peter’s Square, the Sistine Chapel, and the Vatican Museums, together forming a UNESCO World Heritage Site inscribed in 1984 for their artistic, historical, and religious significance. It is also recognized as the smallest sovereign state in the world, a status tied directly to the terms of the Lateran Treaty.

Why Vatican City Matters Globally

Vatican City’s importance extends well beyond its size. As the seat of the Catholic Church, it serves as the administrative and spiritual center for more than a billion Catholics worldwide, and its decisions on doctrine, appointments, and diplomacy carry weight across the Catholic world. Through the Holy See’s diplomatic missions and its observer role at the United Nations, Vatican City participates in international affairs on questions ranging from peace negotiations to humanitarian policy, giving a state of under half a square kilometer an outsized voice in global institutions.

Editorially reviewed by Specialty Digest Editorial TeamLast reviewed October 5, 2026Researched and drafted with AI assistanceReport an issue