List of The Adventures of Jimmy Neutron: Boy Genius episodes

The following is a list of all The Adventures of Jimmy Neutron: Boy Genius episodes. The series is based on the 2001 film Jimmy Neutron: Boy Genius.

Season 1 (2002–03)
Unlike Season 2 or 3, Season 1 of Jimmy Neutron takes a more comical approach to the show, with little development of Jimmy and Cindy's relationship.
 * Jimmy, Carl and Sheen are present for all episodes.
 * Cindy was absent for five episodes.
 * Libby was absent for seven episodes.

Season 2 (2003–04)
In contrast to season one, 22-minute episodes became the norm for season two. It took a mature and slightly more serious approach to the show.
 * Jimmy, Carl and Sheen are present for all episodes.
 * Cindy was absent for four episodes.
 * Libby was absent for five episodes.

Season 3 (2004–06)
Different screenshots from newer episodes and sound effects are added to the theme song, with the exception of the episodes "Lights! Camera! Danger!", "Fundemonium", "Stranded", "Jimmy Goes to College" and "Who's Your Mommy?/Clash of the Cousins" replacing the original theme song from the first two seasons.
 * After the episode "Attack of the Twonkies", Twonkies in their pre-transformation appearances appear at least once per episode as Easter eggs.