The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Alexandria (5 members)
- Arlington (9 members)
- Arlington County (2 members)
- August Event (4 members)
- Blog posts (0 members)
- Browse (7 members)
- Candidates for deletion (0 members)
- Charles County (1 member)
- City of Fairfax (2 members)
- Disambiguations (0 members)
- District of Columbia (9 members)
- Event (29 members)
- Fairfax County (18 members)
- Falls Church (1 member)
- February Event (1 member)
- Forum Dictionary (34 members)
- Help (0 members)
- Images (1 member)
- January Event (1 member)
- June Event (5 members)
- Loudoun County (2 members)
- MBT (1 member)
- MTB Event (1 member)
- March Event (2 members)
- Maryland (16 members)
- May Event (6 members)
- Montgomery County (6 members)
- NE (1 member)
- NW (2 members)
- October Event (1 member)
- Pages with broken file links (1 member)
- Prince George's County (9 members)
- Road Event (20 members)
- SE (2 members)
- SW (1 member)
- September Event (2 members)
- Template documentation (27 members)
- Templates (26 members)
- Trail (45 members)
- Trail Segment (7 members)
- Trail Slang (6 members)
- Virginia (35 members)