Place comparison

Green Island compared with Miyako Island: area, population and density

Miyako Island has more than ten times Green Island land and more than eleven times its registered population.

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 detailed guide below compares Green Island with Miyako Island. Use the selector above to explore any other pair.

Direct answer

How different are Green Island and Miyako Island?

Green Island covers 15.1 km²; Green Island's area is about 9.5% of Miyako Island's. Its reported population is 4,327; Green Island's population is about 8.6% of Miyako Island's. By average density, Green Island's population density is about 90.5% of Miyako Island's.

Area difference

Green Island's area is about 9.5% of Miyako Island's 15.1 km² · 158.5 km²

Population difference

Green Island's population is about 8.6% of Miyako Island's 4,327 · 50,218

Density difference

Green Island's population density is about 90.5% of Miyako Island's 286.7 /km² · 316.8 /km²

On a familiar scale

Green Island ≈ 52% of Matsu (Lienchiang County) 3,488 m² of land per resident
Miyako Island ≈ the size of Kinmen County 3,157 m² of land per resident

Reference scales come from Department of Household Registration, Ministry of the Interior: Land area, households and population density by township and district (year-end 2025) , as of 2025-12-31.

How to read it

Both records are close to island-level alignment, making this a cleaner comparison than pairs that rely on county or city archipelagos.

Geography and shape

Green Island is a compact volcanic island off southeast Taiwan. Miyako is a much larger, low-lying limestone island in Okinawa. The shared scale makes the order-of-magnitude difference clearer than separate tourist maps.

Population context

Miyako has over eleven times the reported residents, while its land is over ten times larger. Its island-wide density is therefore only modestly above Green Island in the current records, despite the much larger totals.

Boundaries and definitions

Miyako excludes other islands administered by Miyakojima City. Green Island pairs its physical island with township registered population. Population systems differ by country, but the geographic scope is unusually well matched.

Green Island: Physical Green Island area paired with the registered population of Green Island Township at year-end 2025. The township and main island are nearly coextensive, but the population remains an administrative count.

Miyako Island: Miyako Island only. Population excludes Ikema, Kurima, Ogami, Irabu and Shimoji islands, even though all are part of Miyakojima City.

In-depth guide

How should Green Island and Miyako Island be understood in context?

This pair turns two familiar travel names into one shared scale. Miyako is more than ten times larger, yet the density difference is much smaller than the land difference.

Two island records with unusually close boundaries

Miyako data exclude the other islands of Miyakojima City. Green Island township is nearly coextensive with the physical island.

That makes the pair useful for cross-border scale even though Japanese and Taiwanese registration systems are not identical.

A larger island can keep a similar average

Miyako land and population rise by broadly similar multiples from Green Island, so average density changes much less than either total.

Neither average tells where hotels, settlements or beaches cluster.

Questions people ask

About this geographic comparison

How many Green Islands fit inside Miyako?

A little over ten by reported land area.

Does Miyako include the whole city?

No. The record excludes the other islands administered by Miyakojima City.

Which island is denser?

Miyako is modestly higher in the current registered-population records.

Sources

Outline data: