Île-de-France is 1.05× the size of Tianjin

Île-de-France (region of France) covers about 12,100 km² (4,670 mi²) and Tianjin (municipality of China) about 11,500 km² (4,430 mi²). Below, both outlines are drawn at one scale and centred on each other.

12,100km²Île-de-France
11,500km²Tianjin

50 km

Île-de-France
Tianjin

What fits

Tianjin is 95% of the size of Île-de-France.
Île-de-France is larger by 630 km² (243 mi²), which is 5.5% of the area of Tianjin.
Measured in Belgiums: Île-de-France is about 0.39, Tianjin about 0.37.

How they differ

Île-de-France is larger, but Tianjin has the larger population: 13.9 million against 12.4 million, 1.12× as many people.
Per square kilometre that is 1,208 in Tianjin against 1,023 in Île-de-France: Tianjin is 1.18× as densely populated.
Their centres are about 8,320 km apart.
A standard web map misstates the comparison: Île-de-France at 49°N is drawn about 2.3× too large and Tianjin at 39°N about 1.7×, so the map shows Île-de-France as 1.45× the size of Tianjin instead of 1.05×.
Together Île-de-France and Tianjin cover 23,600 km², close to the size of Belize (22,300 km², 5.4% smaller).
The gap between them, 630 km², is about the size of Micronesia (634 km²).
At Tianjin's density, Île-de-France would have 14.6 million people (it has 12.4 million). At Île-de-France's density, Tianjin would have 11.7 million (it has 13.9 million).
Île-de-France's centre is 9.4° of latitude, about 1,050 km, farther north than Tianjin'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.
Tianjin is the 30th largest of the 31 provinces and regions of China and covers 0.1% of its area; it is the 3rd most densely populated of them.
Île-de-France lies about 9° of latitude (roughly 1,050 km) north of Tianjin.
Shared out evenly, each person in Île-de-France would have about 980 m² and each person in Tianjin about 830 m².
Laid side by side, Île-de-France and Tianjin would cover 23,600 km², 1.06× the size of Belize.
Together they have 26.2 million people, about as many people as North Korea.

Side by side

	Île-de-France	Tianjin
Is a	RegionFrance	MunicipalityChina
Area, measured	12,100 km²4,670 mi²	11,500 km²4,430 mi²
Official area	12,000 km²Wikidata	11,900 km²Wikidata
Rank by area	13th of 18in France	30th of 31in China
Population	12.4 millionWikidata, 2022	13.9 millionWikidata, 2020
Rank by population	1st of 18in France	27th of 31in China
Density	1,023 per km²	1,208 per km²
Capital	Paris	–
Latitude range	48°N to 49°N	39°N to 40°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 11,500 km² is 3.7% below Wikidata's official figure of 11,900 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 Tianjin

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