Enclosed entirely within the city of Rome, Vatican City covers about 0.49 square kilometres, making it the smallest sovereign state on Earth by both area and population. It became an independent state under the Lateran Treaty of 1929, signed with the Kingdom of Italy.
Record no. MRB-2026-005680
Smallest Country in the World
Reference Record – Not Certified
This record is compiled from publicly available sources for reference. It has not been examined or certified by The Book of World Records.