#4 North American Political Economy

There are different economic sectors that different cities in the United States can fall under.  San Diego can belong to the Quaternary & Tertiary sector. It falls under the Quaternary sector due to having the Marine corps and Navy around. San Diego also is Tertiary due the tourism.  Tourist come to San Diego to visit such places as Legoland and the San Diego Zoo. In 2010 San Diego was still part of the ten largest city in the United States. 

http://luekermunchkins.blogspot.com/2011/08/legoland.html

http://www.youtube.com/watch?v=yDJh6I-iwt0

http://ocdeals.ocregister.com/files/2011/10/san_diego_zoo_entranceOnset.jpg