The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Heads of residence of Oakridge (1 member)
- Heads of urban development (1 member)
- Heads of urban development of Aventura (1 member)
- Heads of urban development of Oakridge (1 member)
- Historical organisations (1 member)
- History (7 members)
- House of Representatives (36 members)
- Inaugural administration (2 members)
- Independent congresspeople (6 members)
- Independent mayors (1 member)
- Independent politicians (6 members)
- Independent presidential campaigns (2 members)
- Independent presidents (2 members)
- Independents (2 members)
- Industries (2 members)
- Industry categories (2 members)
- Infobox news organizations (2 members)
- Infobox person (1 member)
- Infobox person extensions (0 members)
- Infobox templates (3 members)
- Infoboxes (6 members)
- Information managers (1 member)
- Information officers (0 members)
- Investigators (6 members)
- Iron Book of Redmont recipients (1 member)
- Iron Scales of Redmont recipients (1 member)
- Iron Stethoscope of Redmont recipients (1 member)
- ItsKatto (2 members)
- Ivy University people (1 member)
- Jobs (5 members)
- Journalism (2 members)
- Journalists (11 members)
- Judges (1 member)
- Judiciary clerks (1 member)
- June 2023 presidential election (1 member)
- June 2024 presidential campaigns (1 member)
- June 2024 presidential election (3 members)
- June 2024 presidential election candidates (2 members)
- June 2025 presidential election (8 members)
- June 2025 presidential election campaigns (3 members)
- June 2025 presidential election candidates (2 members)
- Juniperfig (1 member)
- Juniperfig administration (1 member)
- Kaiserin (9 members)
- Kaiserin administration (8 members)
- Katzen (1 member)
- Klondike (1 member)
- Krix (3 members)
- Krix administration (2 members)
- Labor Party of Redmont members (1 member)