The list of names Joe Dirt reads on the tour bus are the same as the ones a teacher called for attendance in Ferris Bueller's Day Off (1986).
When the hot air balloon comes down near the oil derrick, a sign with "Scotch Oil" on it is seen. Scotch Oil was the name of David Spade's friend Chris Farley's family oil business in Wisconsin.
Roseanne Barr and Gary Busey were originally cast as Joe Dirt's parents. However, Roseanne mysteriously quit the project one day after creating months of delay, re-editing and re-shoots, so director Dennie Gordon decided to re-shoot the scene with Caroline Aaron and Fred Ward.
The hardtop that Joe Dirt drove throughout most of the movie is a replica of a 1969 Dodge Daytona, a limited production car built for only one year during the muscle car era of the late sixties and early seventies. Only five hundred three of the real Daytonas were ever built.
Various VHS titles had a preview for this movie, and titled it "The Adventures of Joe Dirt".
When Joe Dirt first returns home as an adult, Blake Clark reprises his role as the mush-mouthed Farmer Fran from The Waterboy (1998).
Each time Robby (Kid Rock) gets dust in Joe's face with his car, the song "You Ain't Seen Nothin' Yet" is playing. This happens three times.
According to Dennis Miller (on his radio show 11/26/2008) he has yet to see the movie, saying that "Someone told me there is a scene where fecal matter falls from an airplane and hits someone on the head", and this may not be his type of movie to watch. But likes that it gives him "caché with his kids' friends."
The scene in which Joe, while working at the quarter toss booth at the carnival, sprays the plates down with PAM is a reference to his 1998 stand-up special Take The Hit in which he joked about trying to make a quarter land on a plate sprayed with PAM at a carnival.
The scene where young Joe is "left behind" by his parents at the Grand Canyon was actually not Grand Canyon National Park in Arizona, but rather was Utah's scenic "Dead Horse Point State Park".
Jill's cabin used in the movie is the same cabin used on the outskirts of town in Black Sheep (1996), another movie starring David Spade.
The part about the dog's kibble getting frozen to the porch and thawed with warm water and a spatula is from comic Tom McGillen's act. McGillen is a friend of co-Writer Fred Wolf and also has a small part in the film.
Producer and performer Anthony Begonia wore his high school band aloha shirt in the "We Love Dirt" crowd scenes.
During one scene in a chemistry class, a student identifies the gas resulting from an experiment gone wrong as "poisonous mustard gas". The symptom of those exposed to the gas (immediate loss of consciousness) is inconsistent with the actual physiological effects of mustard gas (irritation of exposed tissues with delayed presentation).