Many of the filming locations took place in Preston, Idaho, including Napolean's home and the high school. Preston is also the city where film scouts came across an orange, 1975 Dodge Tradesman, and asked to use it for a character.
I will admit that I am easily entertained, but this video is one of the more enjoyable I've watched on YouTube in quite some time. There's a guy who reviews campsites that found one just south of Jackpot, Nevada and it's one that Uncle Rico would be proud of.