一 United States Marine Corps 一 #8368405

members (measured 21 Sept 2026, 21:38 UTC)

18 November 2020

created (per Roblox API)

10 August 2026

first measured by this register

Membership history

Growth

Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.

Measurement log — every members count we have recorded
Measured (UTC)	Members	Change
23 Aug 2026, 06:54	6	first reading

Ownership

Owned by Macro (@Macro_o0) as measured.

Groups seen changing owner — the largest ever handed over and the most recent — are on the ownership transfers board.

Members we’ve seen

Macro (@Macro_o0) — [SECNAV] Secretary of the Navy (rank 255)

Hunter (@HunterKrieg) — [ACMC] Assistant Commandant of the Marine Corps (rank 35)

aussiealexx (@AussieAlexx) — [RCT] Recruit (rank 1)

A sample — only members this register has independently measured, highest rank first. Not the full roster.

Rank structure

[SECNAV] Secretary of the Navy1

[CMC] Commandant of the Marine Corps0

[ACMC] Assistant Commandant of the Marine Corps1

[DEV] Developer0

[SMMC] Sergeant Major of the Marine Corps0

[DMCS] Director of the Marine Corps Staff0

[IGMC] Inspector General of the Marine Corps0

----MARINE HEADQUARTERS----0

[GEN] General0

[LTGEN] Lieutenant General0

[MGEN] Major General0

[BGEN] Brigadier General0

[COL] Colonel0

[LTCOL] Lieutenant Colonel0

[MAJ] Major0

[CPT] Captain0

[1LT] First Lieutenant0

[2LT] Second Lieutenant0

----MARINE HIGH RANKS----0

[CWO 5] Chief Warrant Officer 50

[CWO 4] Chief Warrant Officer 40

[CWO 3] Chief Warrant Officer 30

[CWO 2] Chief Warrant Officer 20

[WO1] Warrant Officer 10

----WARRANT OFFICERS----0

[SGM] Sergeant Major0

[MGSGT] Master Gunnery Sergeant0

[1SGT] First Sergeant0

[MSGT] Master Sergeant0

[GSGT] Gunnery Sergeant0

[SSGT] Staff Sergeant0

[SGT] Sergeant0

[CPL] Corporal0

[LCPL] Lance Corporal0

[PFC] Private First Class0

[PVT] Private0

Member6

[RCT] Recruit4

Guest0

Roles and per-rank member counts as Roblox reports them (rank 0 = guest … 255 = owner).

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Groups whose measured members overlap with this one — a sample from our membership graph.

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I-I Ist Expeditionary Force#8372037 · 2 shared members

I-I Marine Corps Military Police#8372033 · 2 shared members

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Roblox#7 · 1 shared members

13,510,591

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Open data

Download this group’s measured record — free to reuse with attribution: membership history (CSV) · full record (JSON)

Each file carries its licence and retrieval time inside it, and is generated from the same measurements shown above.