The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Article management templates (4 members)
- Article stubs (23 members)
- BlogListingPage (0 members)
- Blog posts (1 member)
- Browse (9 members)
- Candidates for deletion (0 members)
- Candidates for speedy deletion (0 members)
- Category templates (3 members)
- Community (6 members)
- Content (1 member)
- Contestants (149 members)
- Copyright (0 members)
- Disambiguations (0 members)
- Episodes (157 members)
- Episodes with Foundation Challenges (32 members)
- Files (2 members)
- Finalists (17 members)
- Forums (6 members)
- General wiki templates (34 members)
- Help (5 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Image wiki templates (9 members)
- Images (4 members)
- Infobox templates (11 members)
- Judges (8 members)
- Navibox templates (5 members)
- New pages (0 members)
- Organisation (0 members)
- Organization (7 members)
- Pages proposed for deletion (0 members)
- Pages with broken file links (3 members)
- Policy (2 members)
- Seasons (13 members)
- Site administration (4 members)
- Site maintenance (5 members)
- Television infobox templates (1 member)
- Template documentation (65 members)
- Templates (13 members)
- Unofficial Seasons (19 members)
- Videos (156 members)
- Watercooler (2 members)
- Winners (12 members)