Sakon Nakhon is 1.03× the size of Yamagata

Sakon Nakhon (province of Thailand) covers about 9,560 km² (3,690 mi²) and Yamagata (prefecture of Japan) about 9,240 km² (3,570 mi²). Below, both outlines are drawn at one scale and centred on each other.

9,560km²Sakon Nakhon
9,240km²Yamagata

20 km

Sakon Nakhon
Yamagata

What fits

Yamagata is 97% of the size of Sakon Nakhon.
Sakon Nakhon is larger by 312 km² (121 mi²), which is 3.4% of the area of Yamagata.
Measured in Belgiums: Sakon Nakhon is about 0.31, Yamagata about 0.30.

How they differ

Sakon Nakhon also has the larger population: 1.1 million against 1.1 million, 1.08× as many people.
Per square kilometre that is 120 in Sakon Nakhon against 115 in Yamagata: Sakon Nakhon is 1.04× as densely populated.
Their centres are about 4,220 km apart.
On a standard web map Yamagata looks larger than Sakon Nakhon: Sakon Nakhon at 17°N is drawn about 1.1× too large and Yamagata at 38°N about 1.6×, so the map shows Yamagata as 1.44× the size of Sakon Nakhon, when Sakon Nakhon is 1.03× the size of Yamagata.
Together Sakon Nakhon and Yamagata cover 18,800 km², close to the size of Fiji (18,900 km², 0.7% bigger).
The gap between them, 312 km², is about the size of Malta (326 km²).
At Yamagata's density, Sakon Nakhon would have 1.1 million people (it has 1.1 million). At Sakon Nakhon's density, Yamagata would have 1.1 million (it has 1.1 million).
Yamagata's centre is 21.0° of latitude, about 2,340 km, farther north than Sakon Nakhon's.
Sakon Nakhon is the 20th largest of the 77 provinces of Thailand and covers 1.9% of its area; it is the 41st most densely populated of them.
Yamagata is the 9th largest of the 47 prefectures of Japan and covers 2.5% of its area; it is the 42nd most densely populated of them.
Yamagata lies about 21° of latitude (roughly 2,340 km) north of Sakon Nakhon.
Shared out evenly, each person in Sakon Nakhon would have about 8,330 m² and each person in Yamagata about 8,690 m².
Laid side by side, Sakon Nakhon and Yamagata would cover 18,800 km², about the same size as Fiji.
Together they have 2.2 million people, 1.07× as many people as Slovenia.

Side by side

	Sakon Nakhon	Yamagata
Is a	ProvinceThailand	PrefectureJapan
Area, measured	9,560 km²3,690 mi²	9,240 km²3,570 mi²
Official area	9,610 km²Wikidata	9,320 km²Wikidata
Rank by area	20th of 77in Thailand	9th of 47in Japan
Population	1.1 millionWikidata, 2020	1.1 millionWikidata, 2021
Rank by population	18th of 77in Thailand	35th of 47in Japan
Density	120 per km²	115 per km²
Capital	Sakon Nakhon	Yamagata
Latitude range	17°N to 18°N	38°N to 39°N

Population: Wikidata 2020 and Wikidata 2021. Official figures: Wikidata (CC0).

Wikidata's official figure of 9,610 km² agrees with our measured area of 9,560 km², to within 2%.
Wikidata's official figure of 9,320 km² agrees with our measured area of 9,240 km², to within 2%.

Similar in size to Sakon Nakhon

Similar in size to Yamagata

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