Wakayama is 1.71× the size of Réunion (France)

Wakayama (prefecture of Japan) covers about 4,430 km² (1,710 mi²) and Réunion (France) (overseas region of France) about 2,580 km² (997 mi²). Below, both outlines are drawn at one scale and centred on each other.

4,430km²Wakayama
2,580km²Réunion (France)

20 km

Wakayama
Réunion (France)

What fits

Réunion (France) is 58% of the size of Wakayama.
Wakayama is larger by 1,850 km² (713 mi²), which is 71% of the area of Réunion (France).
Measured in Belgiums: Wakayama is about 0.14, Réunion (France) about 0.08.

How they differ

Wakayama also has the larger population: 911,000 against 881,000, 1.03× as many people.
Per square kilometre that is 341 in Réunion (France) against 206 in Wakayama: Réunion (France) is 1.66× as densely populated.
Their centres are about 10,400 km apart.
A standard web map misstates the comparison: Wakayama at 34°N is drawn about 1.5× too large and Réunion (France) at 21°S about 1.1×, so the map shows Wakayama as 2.17× the size of Réunion (France) instead of 1.71×.
Together Wakayama and Réunion (France) cover 7,010 km², close to the size of Palestine (6,070 km², 13% smaller).
The gap between them, 1,850 km², is about the size of Mauritius (2,000 km²).
At Réunion (France)'s density, Wakayama would have 1.5 million people (it has 911,000). At Wakayama's density, Réunion (France) would have 531,000 (it has 881,000).
Wakayama's centre is 55.0° of latitude, about 6,120 km, farther north than Réunion (France)'s.
Wakayama is the 32nd largest of the 47 prefectures of Japan and covers 1.2% of its area; it is the 29th most densely populated of them.
Réunion (France) is the 15th largest of the 18 regions of France and covers 0.4% of its area; it is the 3rd most densely populated of them.
Wakayama lies about 55° of latitude (roughly 6,120 km) north of Réunion (France), on the other side of the equator.
Shared out evenly, each person in Wakayama would have about 4,860 m² and each person in Réunion (France) about 2,930 m².
Laid side by side, Wakayama and Réunion (France) would cover 7,010 km², 1.23× the size of Brunei.
Together they have 1.8 million people, about as many people as North Macedonia.

Side by side

	Wakayama	Réunion (France)
Is a	PrefectureJapan	Overseas regionFrance
Area, measured	4,430 km²1,710 mi²	2,580 km²997 mi²
Official area	4,730 km²Wikidata	2,510 km²Wikidata
Rank by area	32nd of 47in Japan	15th of 18in France
Population	911,000Wikidata, 2021	881,000Wikidata, 2022
Rank by population	40th of 47in Japan	13th of 18in France
Density	206 per km²	341 per km²
Capital	Wakayama	Saint-Denis
Latitude range	33°N to 34°N	21°S to 21°S

Population: Wikidata 2021 and Wikidata 2022. Official figures: Wikidata (CC0).

Our measured 4,430 km² is 6.3% below Wikidata's official figure of 4,730 km². Official figures can include inland water or count land that an outline draws differently. This difference is flagged for review.
Our measured 2,580 km² is 2.8% above Wikidata's official figure of 2,510 km². Official figures can include inland water or count land that an outline draws differently.

Similar in size to Wakayama

Similar in size to Réunion (France)

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
Boundary: De facto, as drawn by Natural Earth. A region is drawn whole, every island included; a country is its main territory.
Area: Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded.
Drawing: Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
Data built: 2026-11-12

Full method