Yucatán is 1.13× the size of Hainan

Yucatán (state of Mexico) covers about 38,400 km² (14,800 mi²) and Hainan (province of China) about 33,800 km² (13,100 mi²). Below, both outlines are drawn at one scale and centred on each other.

38,400km²Yucatán
33,800km²Hainan

50 km

Yucatán
Hainan

What fits

Hainan is 88% of the size of Yucatán.
Yucatán is larger by 4,540 km² (1,750 mi²), which is 13% of the area of Hainan.
Measured in Belgiums: Yucatán is about 1.25, Hainan about 1.10.

How they differ

Yucatán is larger, but Hainan has the larger population: 10.1 million against 2.3 million, 4.34× as many people.
Per square kilometre that is 298 in Hainan against 60 in Yucatán: Hainan is 4.93× as densely populated.
Their centres are about 15,100 km apart.
Together Yucatán and Hainan cover 72,200 km², close to the size of Sierra Leone (71,600 km², 0.9% smaller).
The gap between them, 4,540 km², is about the size of Trinidad and Tobago (5,120 km²).
At Hainan's density, Yucatán would have 11.4 million people (it has 2.3 million). At Yucatán's density, Hainan would have 2.0 million (it has 10.1 million).
Yucatán's centre is 1.6° of latitude, about 180 km, farther north than Hainan's.
Yucatán is the 20th largest of the 32 states of Mexico and covers 2.0% of its area; it is the 17th most densely populated of them.
Hainan is the 28th largest of the 31 provinces and regions of China and covers 0.4% of its area; it is the 15th most densely populated of them.
Both lie at about the same latitude, 21°N and 19°N.
Shared out evenly, each person in Yucatán would have about 16,540 m² and each person in Hainan about 3,360 m².
Laid side by side, Yucatán and Hainan would cover 72,200 km², about the same size as Sierra Leone.
Together they have 12.4 million people, about as many people as Bolivia.

Side by side

	Yucatán	Hainan
Is a	StateMexico	ProvinceChina
Area, measured	38,400 km²14,800 mi²	33,800 km²13,100 mi²
Official area	39,600 km²Wikidata	33,900 km²Wikidata
Rank by area	20th of 32in Mexico	28th of 31in China
Population	2.3 millionWikidata, 2020	10.1 millionWikidata, 2020
Rank by population	21st of 32in Mexico	28th of 31in China
Density	60 per km²	298 per km²
Capital	Mérida	Haikou
Latitude range	20°N to 22°N	18°N to 20°N

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

Our measured 38,400 km² is 3.1% below Wikidata's official figure of 39,600 km². Official figures can include inland water or count land that an outline draws differently.
Wikidata's official figure of 33,900 km² agrees with our measured area of 33,800 km², to within 2%.

Similar in size to Yucatán

Similar in size to Hainan

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