Île-de-France is 1.07× the size of Chiang Rai

Île-de-France (region of France) covers about 12,100 km² (4,670 mi²) and Chiang Rai (province of Thailand) about 11,300 km² (4,350 mi²). Below, both outlines are drawn at one scale and centred on each other.

12,100km²Île-de-France
11,300km²Chiang Rai

50 km

Île-de-France
Chiang Rai

What fits

Chiang Rai is 93% of the size of Île-de-France.
Île-de-France is larger by 832 km² (321 mi²), which is 7.4% of the area of Chiang Rai.
Measured in Belgiums: Île-de-France is about 0.39, Chiang Rai about 0.37.

How they differ

Île-de-France also has the larger population: 12.4 million against 1.3 million, 9.56× as many people.
Per square kilometre that is 1,023 in Île-de-France against 115 in Chiang Rai: Île-de-France is 8.90× as densely populated.
Their centres are about 8,880 km apart.
A standard web map misstates the comparison: Île-de-France at 49°N is drawn about 2.3× too large and Chiang Rai at 20°N about 1.1×, so the map shows Île-de-France as 2.18× the size of Chiang Rai instead of 1.07×.
Together Île-de-France and Chiang Rai cover 23,400 km², close to the size of Belize (22,300 km², 4.6% smaller).
The gap between them, 832 km², is about the size of Åland (942 km²).
At Chiang Rai's density, Île-de-France would have 1.4 million people (it has 12.4 million). At Île-de-France's density, Chiang Rai would have 11.5 million (it has 1.3 million).
Île-de-France's centre is 28.9° of latitude, about 3,210 km, farther north than Chiang Rai's.
Île-de-France is the 13th largest of the 18 regions of France and covers 1.9% of its area; it is the most densely populated of them.
Chiang Rai is the 12th largest of the 77 provinces of Thailand and covers 2.2% of its area; it is the 43rd most densely populated of them.
Île-de-France lies about 29° of latitude (roughly 3,210 km) north of Chiang Rai.
Shared out evenly, each person in Île-de-France would have about 980 m² and each person in Chiang Rai about 8,710 m².
Laid side by side, Île-de-France and Chiang Rai would cover 23,400 km², 1.05× the size of Belize.
Together they have 13.7 million people, about as many people as Burundi.

Side by side

	Île-de-France	Chiang Rai
Is a	RegionFrance	ProvinceThailand
Area, measured	12,100 km²4,670 mi²	11,300 km²4,350 mi²
Official area	12,000 km²Wikidata	11,700 km²Wikidata
Rank by area	13th of 18in France	12th of 77in Thailand
Population	12.4 millionWikidata, 2022	1.3 millionWikidata, 2020
Rank by population	1st of 18in France	15th of 77in Thailand
Density	1,023 per km²	115 per km²
Capital	Paris	Chiang Rai
Latitude range	48°N to 49°N	19°N to 20°N

Population: Wikidata 2022 and Wikidata 2020. Official figures: Wikidata (CC0).

Wikidata's official figure of 12,000 km² agrees with our measured area of 12,100 km², to within 2%.
Our measured 11,300 km² is 3.5% below Wikidata's official figure of 11,700 km². Official figures can include inland water or count land that an outline draws differently.

Similar in size to Île-de-France

Similar in size to Chiang Rai

More comparisons

Sources and method

Outlines: Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Île-de-France is the departments 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