Locations
The show takes place at the fictional James K. Polk Middle School, in California (the flag can be seen in the school's entrance hall). The exterior of the school was filmed at La Mesa Junior High in Santa Clarita, California. The school is named after the 11th President of the United States, James K. Polk. The school's colors are gold and green and the mascot is the Wolves, which is a constant theme throughout the school's interior.
During Season 1, all of the show's action took place within the school, and with the exception of one or two notable occasions, everything happened indoors. However, during Season 2, the shows producers decided they wanted more exterior scenes, so more outdoor shots were used, and on certain occasions, the show took place off school property.
Read more about this topic: Ned's Declassified School Survival Guide