Castelia City

Castelia City is the Unova's most populous city in terms of city proper, and also the world's most populous city proper city. It has the biggest city proper and metro area of any city with 10,312km2 in city proper area, and 24,120km2 in metro area. It has the 3rd highest HDI of every single cities in the Pokemon World. It has the high life expectancy, while it's generally wealthy. Despite having 8.9% unemployment, and about 13.3% poverty. Castelia City still remains one of the most developed cities in the world, with a high GDP per capita, and a general high standard of living, although Castelia City is ranked more into technological development rather than livibility.

Geography
Castelia City itself has a rocky landscape, and a very high landscape. However about 8000 km2 of land is covered by mountains that elevate up to 3500m tall, thus only about 1534 km2 of space is available in the downtown core. The metro area is entirely of high elevation with the highest point being 346m above sea level, while the lowest point being 125m above sea level. The lowest point in the downtown core is 17m above sea level, while the highest is 3542m, and majority is uninhabitated. Castelia City with metro area covers 24,120km2 of land being the largest city in the world in land area, and is generally nicknamed "The State City" for covering land similar to the size of many other regions.

Climate
Due to it's closeness to water, Castelia City has a cool temperature in the winter times, and can be quite cold, while in the summer times it's average high temperature is not too hot. However, due to increase in temperature in Castelia City, the Castelia mountains icepeaks are starting to melt. Sometimes in the winter there are avalanches near the Castelia mountains, and can wreck certain ski resorts. Despite this, Castelia City has a huge forest covering 25km2 to maintain the temperatures.