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Southwest Corridor

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 This article is a start-class article. It needs further improvement to obtain good article status. This article is part of Altverse II.
Southwest Corridor
Greater Porciúncula Area
San Diego
San Diego
Sovereign state Kingdom of Sierra
Constituent country Sierra
Provinces and principal cities

Provinces and territories
 • Urban 9,065.79 sq mi (23,480.29 km2)
 • Metro 52,598 sq mi (136,228.2 km2)
Highest elevation 11,499 ft (3,505 m)
Population (2010)
 • Urban 17,938,156
 • MSA 27,072,831
 • CSA 32,817,483
  MSA/CSA/Urban: 2010
Time zone PST (UTC-8)
 • Summer (DST) PDT (UTC-7)
Area code(s) 213, 310, 323, 424, 442, 562, 626, 657, 661, 714, 760, 805, 818, 909, 949, 951
Major freeways
The Southwest Corridor, also known as the Greater Porciúncula area, is the third-largest megapolis in North America with over 32 million residents, and is the most heavily urbanized agglomeration in Sierra. It consists of the entirety of the three K.S. provinces of Gold Coast, Orange, and Laguna, as well as portions of the three K.S. provinces of the Inland Empire, Kings, and Clark. The entirety of the K.S. territory of the Channel Islands and portions of the K.S. territory of Pacífico Norte are also included in the Southwest Corridor and in some definitions, the K.S. province of Imperial is also included in the region. It centers on the Porciúncula metropolitan area in the eastern Gold Coast and Orange, and is located primarily on the Pacific Ocean in Southwestern Sierra. It includes the major cities of Porciúncula, Grands Ballons, San Diego, and Riverside, along with their associated metropolitan areas and suburbs, as well as other populated centers such as Fort Travis to the north and Las Vegas to the east. Eight of the ten largest cities in Sierra are located in the Southwest Corridor.

The Southwest Corridor is often synonymously linked to Southwestern Sierra, a geographic region used by the K.S. Royal Surveyors Corps and K.S. Royal Bureau of Census including all of the Corridor, as well as the sparsely populated swaths of land in the desert interior and mountainous areas of the Inland Empire, Kings, Clark, and Imperial. The Corridor itself does not have a formal geographic designation, and definitions vary. However, most definitions of the Southwest Corridor conform to the boundaries of Southwestern Sierra. Consequently, the Southwest Corridor is often referred to and conceptualized as a region of Sierra, rather than a megapolis in everyday usage.

Historically, the region was sparsely populated and was less populated than Northern Sierra and the Styxie. It was reliant mainly on agriculture and ranching, before it shifted more towards manufacturing and industry shortly before the Sierran Civil War. When the nation's capital moved from San Francisco City to Porciúncula, the region became the center of national affairs and commerce. It attracted hundreds of thousands of migrants nationwide and immigrants worldwide. The discovery of oil, the development of transcontinental railroads, and the advancements made in technology and farming further intensified economic growth and urban expansion in the region. The Southwest Corridor became the epicenter of the Sierran Cultural Revolution and fundamentally transformed the cultural identity of the country.

The megapolis is a major hub and global leader in politics, economy, trade, business, finance, culture, education, medicine, entertainment, arts, fashion, logistics, language, and aviation. It is the political, economic, and cultural center of Sierra, containing the nation's capital, Porciúncula, as well as nearly half of the entire nation's population. In 2018, it had an estimated GDP of $3.18 trillion, accounting for nearly 60% of Sierra's national GDP. Four of the ten wealthiest counties in Sierra are also located in the Southwest Corridor and the top three largest provincial economies are also based here. Overall, residents in the Southwest Corridor are the most diverse, well-educated, economically affluent, and urbanized in the nation.


In the broadest definitions, the Southwest Corridor consists of seven provinces (Clark, the Gold Coast, the Inland Empire, Imperial, Kings, Laguna, and Orange) and two territories (the Channel Islands and Pacífico Norte). The Gold Coast, Orange, and the southwestern Inland Empire are always considered the core areas of the Southwest Corridor, while the urban and metropolitan areas of neighboring provinces are also included. Depending on the definition, the less densely populated regions of northern and eastern Inland Empire, the Kings Interior, and Clark are also included, although the Royal Bureau of Census does not officially include them in their definition.

The notion of the Southwest Corridor originated as early as the Sierran Civil War period when a clear divide between the Sierran North and Sierran South had been established. The decision to permanently relocate the nation's capital away from San Francisco City to Porciúncula signaled a shift towards the direction and politics to the Southwest. The faster economic and demographic growth surrounding the new capital region solidified the area's identity and status as the central hub for the post-war country.



Provinces and territories

Counties, parishes, and municipalities

Cities, towns, and CDPs

Places with more than 100,000 inhabitants


Places with 10,000 to 99,999 inhabitants

Places with fewer than 10,000 inhabitants

Unincorporated areas






See also