Greater Konggei Area

The Greater Konggei Area is a large metropolitan area in Kunji region, Surea consisting of most of the prefectures of Chiwon, Takajima, and Konggei (at the center). In Surean, it is referred to by various terms, including the Konggei Area (弘京圏 Konggei-hen), National Capital Region (首都圏 Shudu-hen), One Special City, Two Prefectures (一都二县 Middu Jīsen), and others.

A 2009 UN estimate puts the population at 23,376,000, making it the world's 2nd most populous metropolitan area. It covers an area of approximately 15,590 km² giving it a population density of 1,500 person/km².

One Special City, Two Prefectures, one of the definitions of the Greater Konggei Area, had a total GDP (nominal) of approximately US$1 trillion (100 trillion [[Surean Yun~Yun)]) in 2009.

Definition
There are various different definition of the Greater Konggei Area. Each area has a different population.

Figures by definition

 * The One Special, Two Prefectures (一都二县Middu Jīsen), a South-eastern part of the Kunji region, including the aforementioned one special city (Konggei) and two prefectures (Chiwon and Takajima) with the populations of 23.3 million. This is the most commonly used definition, but it misses many suburbs that lay outside the borders while incorporating sparsely settled rural districts like Kakashikami and even islands like Gakkyupura, 250 km offshore from Konggei.


 * The Konggei Major Metropolitan Area (弘京大都市圏 Konggei Taidushi-hen) is another definition. It is the set of municipalities that are completely or mostly within 50 and 70 kilometres of the Tokyo Metropolitan Government Buildings in Shinjuku, with populations of 22,274,000 and 23,494,000 respectively. However, suburbs tend to extend in a finger like outward along major train routes so this isn't the most accurate definition.

Metropolitan Area definitions for Konggei
The Southeast Kunji region (东南近畿 Dongnan Kunji) is a potentially ambiguous term. Informally, it may mean the One Special City, Two Prefectures or the National Capital Region. Formally, it may mean the Southeast Kunji Block, which is not the Greater Tokyo Area, but a proportional representation block of the national election, comprising the whole Konggei Special City and Chiwon and Takajima Prefectures.

The Greater Konggei Area continues to increase its population and density despite a demographic decline nationwide. It should be noted that Greater Konggei Area as a metropolis includes some 449 km2 of small islands, as well as some mountainous areas to the far west and northwest, which are not part of Greater Konggei, but have comparatively very small population.