Republic City

Republic City is a city surrounded by water and mountains, its concept is inspired by several real world past and present locations. This includes, Shanghai (circa 1920s), Hong Kong and Western cities like New York City and Chicago. It could potentially be situated on an island or peninsula.

During the time of Avatar Korra's youth, it is host to peoples from "all nations", though to what extent and their geographic distribution is yet to be revealed. It is also suffering from high levels of crime and an anti-bender revolt.

Rumours and Speculation
'Note: PLEASE note that the below "confirmations" delivered to you by many Avatar fan-sites are NOT confirmed as of yet. DO NOT take most of the information here as a fact. Also, DO NOT edit things interpreted as "fact" into this article. Furthermore, do not add in "question is" and speculation debates.'

These storyline elements remain unconfirmed. Some of it could possibly be revealed at Comic-Con 2010.
 * Republic City could potentially be located on Kyoshi Island. This seems unlikely due to the small size of Kyoshi Island in comparison to the picture above depicting the apparently large Republic City surrounded by huge mountains and large rivers. However, it is also possible that only a small portion of Kyoshi Island has been seen thus far, not giving a true indication of its scale; when Kyoshi broke off the island in Avatar Day, large mountains are shown in the background.
 * Another rumored location for the city is Whale Tail Island; a location unexplored by the original series.
 * The city could potentially be located in previous Air Nomad territory, as none were explored in-depth. The Southern Air Nomad Territory is tipped as the most likely, as being an archipelago, it fits with the sole released image of Republic City.
 * There are numerous mainland Earth Kingdom locales unexplored and unmentioned in the original series candidate for the size and geographic setting of Republic City. There are few mapped locations in the Fire Nation which could host the city, and its warm climate seems to clash somewhat with the image of Republic City, however its archipelagic geography could accommodate the city. The Water Tribe is the only nation certain not to be host to the city as its geographic setting at the polar regions in no way coincides with that presented in the image of Republic City.
 * However, it is also important to note that since the conclusion of the war, political boundaries may have shifted, and new states emerged. Potentially, landforms may too have changed by Earthbending and Waterbending.


 * The series takes place at least 70 years after the original ATLA series, which made no mention of Republic City. Given the city's massive size, it is unlikely that it would have remained unmentioned in the original series had it existed at the time. It is likely then, that either the city was either founded after the conclusion of the war, as its name alludes to, or that it existed in much smaller form around the conclusion of the war. If this is the case, it is also entirely possible that the city was renamed after the war.
 * It is rumoured the city was developed after the end of the war by Avatar Aang and Fire Lord Zuko as a means of healing the wounds of the lengthy conflict and physically reuniting the four nations under the city-herald, Republic City. People from all nations may have been encouraged to emigrate to the city, to help with this reformation. This theory explains why the city was never mentioned in The Last Airbender, why the city has such a diverse mosaic of citizens, and why the city is driven by steampunk elements.
 * The city may also be home to a new population of Airbenders, as it has been said that that it is host to citizens of heritage from all nation, presumed to mean the four original nations.