French Guiana is 1.05× the size of Castilla–La Mancha

French Guiana (overseas region of France) covers about 83,200 km² (32,100 mi²) and Castilla–La Mancha (autonomous community of Spain) about 79,400 km² (30,700 mi²). Below, both outlines are drawn at one scale and centred on each other.

83,200km²French Guiana
79,400km²Castilla–La Mancha

100 km

French Guiana
Castilla–La Mancha

What fits

Castilla–La Mancha is 95% of the size of French Guiana.
French Guiana is larger by 3,770 km² (1,460 mi²), which is 4.8% of the area of Castilla–La Mancha.
Measured in Belgiums: French Guiana is about 2.71, Castilla–La Mancha about 2.59.

How they differ

French Guiana is larger, but Castilla–La Mancha has the larger population: 2.1 million against 288,000, 7.28× as many people.
Per square kilometre that is 26 in Castilla–La Mancha against 3.5 in French Guiana: Castilla–La Mancha is 7.62× as densely populated.
Their centres are about 6,410 km apart.
On a standard web map Castilla–La Mancha looks larger than French Guiana: French Guiana at 4°N is drawn about 1.0× too large and Castilla–La Mancha at 40°N about 1.7×, so the map shows Castilla–La Mancha as 1.60× the size of French Guiana, when French Guiana is 1.05× the size of Castilla–La Mancha.
Together French Guiana and Castilla–La Mancha cover 163,000 km², close to the size of Somaliland (167,000 km², 3.0% bigger).
The gap between them, 3,770 km², is about the size of Cape Verde (3,930 km²).
At Castilla–La Mancha's density, French Guiana would have 2.2 million people (it has 288,000). At French Guiana's density, Castilla–La Mancha would have 275,000 (it has 2.1 million).
Castilla–La Mancha's centre is 35.7° of latitude, about 3,970 km, farther north than French Guiana's.
French Guiana is the 2nd largest of the 18 regions of France and covers 13% of its area; it is the 18th most densely populated of them.
Castilla–La Mancha is the 3rd largest of the 19 autonomous communities and cities of Spain and covers 16% of its area; it is the 17th most densely populated of them.
Castilla–La Mancha lies about 36° of latitude (roughly 3,970 km) north of French Guiana.
Shared out evenly, each person in French Guiana would have about 288,450 m² and each person in Castilla–La Mancha about 37,830 m².
Laid side by side, French Guiana and Castilla–La Mancha would cover 163,000 km², 1.04× the size of Tunisia.
Together they have 2.4 million people, about as many people as Moldova.

Side by side

	French Guiana	Castilla–La Mancha
Is a	Overseas regionFrance	Autonomous communitySpain
Area, measured	83,200 km²32,100 mi²	79,400 km²30,700 mi²
Official area	83,500 km²Wikidata	79,500 km²Wikidata
Rank by area	2nd of 18in France	3rd of 19in Spain
Population	288,000Wikidata, 2022	2.1 millionWikidata, 2024
Rank by population	18th of 18in France	9th of 19in Spain
Density	3.5 per km²	26 per km²
Capital	Cayenne	Toledo
Latitude range	2°N to 6°N	38°N to 41°N

Population: Wikidata 2022 and Wikidata 2024. Official figures: Wikidata (CC0).

Wikidata's official figure of 83,500 km² agrees with our measured area of 83,200 km², to within 2%.
Wikidata's official figure of 79,500 km² agrees with our measured area of 79,400 km², to within 2%.

Similar in size to French Guiana

Similar in size to Castilla–La Mancha

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Castilla–La Mancha is the provinces Natural Earth draws there, joined along their shared borders.
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