Place comparison

Jeju compared with Taiwan: area, population and density

Taiwan has about 20 times Jeju’s land and about 35 times its population, so Taiwan is about 1.8 times as dense as Jeju.

Place A Grouped by country or region Place B Grouped by country or region

Equal-area outline comparison

Outlines are centered and scaled by official land area; position does not show geographic location.

Area

Population

Population density

Area data date

Population data date

The guide below belongs to this pair: Jeju Province and Taiwan. Change the selector above and the page follows, so the reading always matches the tool.

Direct answer

How different are Jeju Province and Taiwan?

Jeju Province covers 1,850.3 km² (714.4 sq mi); Jeju Province's area is about 5.1% of Taiwan's. Its reported population is 674,817; Jeju Province's population is about 2.9% of Taiwan's. By average density, Jeju Province's population density is about 56.7% of Taiwan's.

Area difference

Jeju Province's area is about 5.1% of Taiwan's 1,850.3 km² (714.4 sq mi) · 36,197.3 km² (13,976 sq mi)

Population difference

Jeju Province's population is about 2.9% of Taiwan's 674,817 · 23,299,132

Density difference

Jeju Province's population density is about 56.7% of Taiwan's 364.7 /km² (945 /sq mi) · 643.7 /km² (1,667 /sq mi)

Full data and sources for each place: Jeju Province area & population, Taiwan area & population

Straight-line distance between geometric centres: about 1215 km; time difference: 1 hour.

On a familiar scale

Jeju Province ≈ 69% of Rhode Island (reference rung) 2,742 m² of land per resident
Taiwan ≈ 1.44 × Maryland (reference rung) 1,554 m² of land per resident

Reference scales come from U.S. Census Bureau: 2025 Gazetteer Files: land area of states and counties , as of 2025-01-01.

How to read it

Jeju is close to the size of New Taipei City, with less than a third of Taipei City’s population.

Geography and shape

Jeju is a volcanic island south of the Korean Peninsula, built around Hallasan, South Korea’s highest mountain; the province also includes Udo, the Chuja group, Marado and dozens of smaller islets. Taiwan is a mountainous island whose Central Mountain Range leaves most people on the western plains, plus outlying islands such as Penghu, Kinmen and Matsu.

Population context

Jeju Province has 674,817 people (1 November 2024 census) on 1,850.3 km², about 365 per km². Taiwan has 23,299,132 registered residents at year-end 2025 on 36,197.3371 km², about 644 per km². Jeju is less crowded than Taiwan’s national average, even though that average already includes the thinly settled Central Mountain Range.

Boundaries and definitions

Jeju here is the whole province, not the main island: its area is registered cadastral land at 31 December 2024 and its population the provincial register-based census of 1 November 2024. The main island alone is roughly 0.9% smaller in area and 0.5% smaller in population, but no Korean government body publishes an area for it separately. Taiwan uses household registration at year-end 2025 and the national administrative land area, outlying islands included.

Jeju Province: 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.

Taiwan: Registered population and official administrative land area.

In-depth guide

How should Jeju Province and Taiwan be understood in context?

Readers who ask whether Jeju is bigger than Taiwan get a clear no: Taiwan has about 20 times Jeju’s land. The more useful comparison is with places in Taiwan — Jeju is close to the size of New Taipei City.

Jeju on a Taiwanese scale

Jeju’s 1,850.3 km² is about 90% of New Taipei City’s 2,052.57 km², about 6.8 times Taipei City and about 14.5 times Penghu County. Its 674,817 residents are about 28% of Taipei City’s and about 2.9% of Taiwan’s.

Roomier than Taiwan’s average

Jeju averages about 365 people per km² against Taiwan’s 644, so Taiwan is about 1.8 times as dense. Both averages include empty uplands — Hallasan’s slopes on Jeju, the Central Mountain Range in Taiwan — so towns on either island are far denser than these numbers.

Questions people ask

About this geographic comparison

Which is bigger, Jeju Province or Taiwan?

Taiwan is bigger, with a land area about 19.6× that of Jeju Province (1,850.3 vs 36,197.3 km², or 714.4 sq mi vs 13,976 sq mi).

How do Jeju Province and Taiwan differ in area, population and density?

Jeju Province is 5.1% the size of Taiwan — 1,850.3 km² vs 36,197.3 km² (714.4 sq mi vs 13,976 sq mi). Population is 2.9% as high; average density is 56.7% as high. Each side’s scope and reference date are set out under “Boundaries and definitions” on this page.

Is Jeju bigger than Taiwan?

No. Taiwan’s 36,197 km² is about 19.6 times Jeju’s 1,850.3 km²; Jeju is about 5.1% of Taiwan’s land and about 2.9% of its population.

Which part of Taiwan is about the size of Jeju?

New Taipei City is the closest: at 2,052.57 km², Jeju is about 90% of it. Jeju is also about 6.8 Taipei Cities, or about 14.5 times Penghu County.

Sources

Outline data:

Natural Earth · Public domain