After the close of candidate filing, contests are eligible for an extended filing period of 5 extra days if the incumbent fails to file. This does not apply, however, if the district has recently changed to elect by areas within the district, and has not had an election for those districts previously. The following are contests not eligible for an extended filing period for the upcoming November 5, 2024 election:
- Huntington Beach Union High School District
- Santa Ana Unified School District
- Savanna School District
- Santa Margarita Water District
- East Orange County Water District
- South Coast Water District
- Buena Park Library District
- Placentia Library District