Calculated from the population and area above; their reference dates may differ.
On a familiar scale
≈ 63% of Kaohsiung City
The closest rung on the Taiwan reference ladder; see the sources below.
Land per resident
2,742 m² of land per resident
The inverse of population density, from the same area and population figures.
The outline is fitted to this frame, not a map for measuring distances. Outlying islands may make the main landmass appear smaller.
Scope and definitions
Jeju Special Self-Governing Province, not the main island alone. The area is the province's registered cadastral land at 31 December 2024, covering the main island plus Udo, the Chuja group, Gapado, Marado, Biyangdo and dozens of smaller islets; the population is the province's at the 1 November 2024 register-based census. The main island by itself is roughly 0.9% smaller in area and 0.5% smaller in population, but no Korean government body publishes an area for it alone, so no separate island entry is possible. The outline drawn here is the main island's coastline rather than the provincial boundary, because the mapped provincial relation is a maritime jurisdiction line enclosing about 11,100 km² of mostly open sea. The Chuja Islands, some 50 km north, are therefore counted in the figures but do not appear in the outline.
Average administrative density does not describe population distribution in every neighborhood. Compare population definitions and reference dates alongside the numbers.
Place guide
How should this Jeju Province profile be read?
The unit here is Jeju Special Self-Governing Province, 1,850.3 km² and 674,817 people, not the main island alone. The outline, by contrast, is the main island’s coastline.
Province against main island
The provincial cadastral area as at 2024-12-31 covers the main island plus Udo, the Chuja group, Gapado, Marado, Biyangdo and dozens of islets, and the population is the register-based census of 2024-11-01. Main island alone would be roughly 0.9% less land and 0.5% fewer people, with Udo-myeon at 1,606 and Chuja-myeon at 1,829 registered residents at the end of 2024.
No Korean government body publishes an area for the main island by itself. Figures of about 1,833 or about 1,846 km² circulate, but neither can be traced to a primary source, so neither is used here.
Why the outline is the island
The mapped provincial relation is a maritime jurisdiction boundary enclosing about 11,100 km², most of it open sea. Drawing it would place a sea boundary next to a land area and make the page harder to read rather than easier.
The coastline of the main island is drawn instead. The Chuja Islands, about 50 km north, are therefore counted in both figures but do not appear in the shape.